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air</title> <meta name="description" content="Search results for: indoor air"> <meta name="keywords" content="indoor air"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="indoor air"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 501</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: indoor air</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">501</span> Indoor and Outdoor Concentration of PM₁₀, PM₂.₅ and PM₁ in Residential Building and Evaluation of Negative Air Ions (NAIs) in Indoor PM Removal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hossein%20Arfaeinia">Hossein Arfaeinia</a>, <a href="https://publications.waset.org/abstracts/search?q=Azam%20Nadali"> Azam Nadali</a>, <a href="https://publications.waset.org/abstracts/search?q=Zahra%20Asadgol"> Zahra Asadgol</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Fahiminia"> Mohammad Fahiminia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Indoor and outdoor particulate matters (PM) were monitored in 20 residential buildings in a two-part study. In part I, the levels of indoor and outdoor PM₁₀, PM₂.₅ and PM₁ was measured using real time GRIMM dust monitors. In part II, the effect of negative air ions (NAIs) method was investigated on the reduction of indoor concentration of PM in these residential buildings. Hourly average concentration and standard deviation (SD) of PM₁₀ in indoor and outdoor at residential buildings were 90.1 ± 33.5 and 63.5 ± 27.4 µg/ m3, respectively. Indoor and outdoor concentrations of PM₂.₅ in residential buildings were 49.5 ± 18.2 and 39.4± 18.1 µg/ m3 and for PM₁ the concentrations were 6.5 ± 10.1and 4.3 ± 7.7 µg/ m3, respectively. Indoor/outdoor (I/O) ratios and concentrations of all size fractions of PM were strongly correlated with wind speed and temperature whereas a good relationship was not observed between humidity and I/O ratios of PM. We estimated that nearly 71.47 % of PM₁₀, 79.86 % of PM₂.₅ and of 61.25 % of PM₁ in indoor of residential buildings can be removed by negative air ions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=particle%20matter%20%28PM%29" title="particle matter (PM)">particle matter (PM)</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air" title=" indoor air"> indoor air</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20air%20ions%20%28NAIs%29" title=" negative air ions (NAIs)"> negative air ions (NAIs)</a>, <a href="https://publications.waset.org/abstracts/search?q=residential%20building" title=" residential building"> residential building</a> </p> <a href="https://publications.waset.org/abstracts/76064/indoor-and-outdoor-concentration-of-pm10-pm25-and-pm1-in-residential-building-and-evaluation-of-negative-air-ions-nais-in-indoor-pm-removal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76064.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">254</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">500</span> Absorption Control of Organic Solar Cells under LED Light for High Efficiency Indoor Power System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Premkumar%20Vincent">Premkumar Vincent</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeok%20Kim"> Hyeok Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin-Hyuk%20Bae"> Jin-Hyuk Bae</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Organic solar cells have high potential which enables these to absorb much weaker light than 1-sun in indoor environment. They also have several practical advantages, such as flexibility, cost-advantage, and semi-transparency that can have superiority in indoor solar energy harvesting. We investigate organic solar cells based on poly(3-hexylthiophene) (P3HT) and indene-C60 bisadduct (ICBA) for indoor application while Finite Difference Time Domain (FDTD) simulations were run to find the optimized structure. This may provide the highest short-circuit current density to acquire high efficiency under indoor illumination. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indoor%20solar%20cells" title="indoor solar cells">indoor solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20light%20harvesting" title=" indoor light harvesting"> indoor light harvesting</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20solar%20cells" title=" organic solar cells"> organic solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=P3HT%3AICBA" title=" P3HT:ICBA"> P3HT:ICBA</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20energy" title=" renewable energy"> renewable energy</a> </p> <a href="https://publications.waset.org/abstracts/75834/absorption-control-of-organic-solar-cells-under-led-light-for-high-efficiency-indoor-power-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75834.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">308</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">499</span> Development of Application Architecture for RFID Based Indoor Tracking Using Passive RFID Tag</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sumaya%20Ismail">Sumaya Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Aijaz%20Ahmad%20Rehi"> Aijaz Ahmad Rehi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Abstract The location tracking and positioning systems have technologically grown exponentially in recent decade. In particular, Global Position system (GPS) has become a universal norm to be a part of almost every software application directly or indirectly for the location based modules. However major drawback of GPS based system is their inability of working in indoor environments. Researchers are thus focused on the alternative technologies which can be used in indoor environments for a vast range of application domains which require indoor location tracking. One of the most popular technology used for indoor tracking is radio frequency identification (RFID). Due to its numerous advantages, including its cost effectiveness, it is considered as a technology of choice in indoor location tracking systems. To contribute to the emerging trend of the research, this paper proposes an application architecture of passive RFID tag based indoor location tracking system. For the proof of concept, a test bed will be developed to in this study. In addition, various indoor location tracking algorithms will be used to assess their appropriateness in the proposed application architecture. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RFID" title="RFID">RFID</a>, <a href="https://publications.waset.org/abstracts/search?q=GPS" title=" GPS"> GPS</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20location%20tracking" title=" indoor location tracking"> indoor location tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=application%20architecture" title=" application architecture"> application architecture</a>, <a href="https://publications.waset.org/abstracts/search?q=passive%20RFID%20tag" title=" passive RFID tag"> passive RFID tag</a> </p> <a href="https://publications.waset.org/abstracts/164777/development-of-application-architecture-for-rfid-based-indoor-tracking-using-passive-rfid-tag" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164777.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">117</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">498</span> Correlation between Indoor and Outdoor Air</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jamal%20A.%20Radaideh">Jamal A. Radaideh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ziad%20N.%20Shatnawi"> Ziad N. Shatnawi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Both indoor and outdoor air quality is investigated throughout residential areas of Al Hofuf city/ Eastern province of Saudi Arabia through a multi‐week multiple sites measurement and sampling survey. Concentration levels of five criteria air pollutants, including carbon dioxide (CO2), carbon monoxide (CO), nitrous dioxide (NO2), sulfur dioxide (SO2) and total volatile organic compounds (TVOC) were measured and analyzed during the study period from January to May 2014. For this survey paper, three different sites, roadside RS, urban UR, and rural RU were selected. Within each site type, six locations were assigned to carryout air quality measurements and to study varying indoor/outdoor air quality for each pollutant. Results indicate that a strong correlation between indoor and outdoor air exists. The I/O ratios for the considered criteria pollutants show that the strongest relationship between indoor and outdoor air is found by analyzing of carbon dioxide, CO2 (0.88), while the lowest is found by both NO2 and SO2 (0.7). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=criteria%20air%20pollutants" title="criteria air pollutants">criteria air pollutants</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%2Foutdoor%20air%20pollution" title=" indoor/outdoor air pollution"> indoor/outdoor air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%2Foutdoor%20ratio" title=" indoor/outdoor ratio"> indoor/outdoor ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=Saudi%20Arabia" title=" Saudi Arabia"> Saudi Arabia</a> </p> <a href="https://publications.waset.org/abstracts/21435/correlation-between-indoor-and-outdoor-air" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21435.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">426</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">497</span> An Application-Based Indoor Environmental Quality (IEQ) Calculator for Residential Buildings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kwok%20W.%20Mui">Kwok W. Mui</a>, <a href="https://publications.waset.org/abstracts/search?q=Ling%20T.%20Wong"> Ling T. Wong</a>, <a href="https://publications.waset.org/abstracts/search?q=Chin%20T.%20Cheung"> Chin T. Cheung</a>, <a href="https://publications.waset.org/abstracts/search?q=Ho%20C.%20Yu"> Ho C. Yu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Based on an indoor environmental quality (IEQ) index established by previous work that indicates the overall IEQ acceptance from the prospect of an occupant in residential buildings in terms of four IEQ factors - thermal comfort, indoor air quality, visual and aural comforts, this study develops a user-friendly IEQ calculator for iOS and Android users to calculate the occupant acceptance and compare the relative performance of IEQ in apartments. The calculator allows the prediction of the best IEQ scenario on a quantitative scale. Any indoor environments under the specific IEQ conditions can be benchmarked against the predicted IEQ acceptance range. This calculator can also suggest how to achieve the best IEQ acceptance among a group of residents. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calculator" title="calculator">calculator</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20environmental%20quality%20%28IEQ%29" title=" indoor environmental quality (IEQ)"> indoor environmental quality (IEQ)</a>, <a href="https://publications.waset.org/abstracts/search?q=residential%20buildings" title=" residential buildings"> residential buildings</a>, <a href="https://publications.waset.org/abstracts/search?q=5-star%20benchmarks" title=" 5-star benchmarks "> 5-star benchmarks </a> </p> <a href="https://publications.waset.org/abstracts/24988/an-application-based-indoor-environmental-quality-ieq-calculator-for-residential-buildings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24988.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">474</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">496</span> Visual Search Based Indoor Localization in Low Light via RGB-D Camera</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yali%20Zheng">Yali Zheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Peipei%20Luo"> Peipei Luo</a>, <a href="https://publications.waset.org/abstracts/search?q=Shinan%20Chen"> Shinan Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jiasheng%20Hao"> Jiasheng Hao</a>, <a href="https://publications.waset.org/abstracts/search?q=Hong%20Cheng"> Hong Cheng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Most of traditional visual indoor navigation algorithms and methods only consider the localization in ordinary daytime, while we focus on the indoor re-localization in low light in the paper. As RGB images are degraded in low light, less discriminative infrared and depth image pairs are taken, as the input, by RGB-D cameras, the most similar candidates, as the output, are searched from databases which is built in the bag-of-word framework. Epipolar constraints can be used to relocalize the query infrared and depth image sequence. We evaluate our method in two datasets captured by Kinect2. The results demonstrate very promising re-localization results for indoor navigation system in low light environments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indoor%20navigation" title="indoor navigation">indoor navigation</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20light" title=" low light"> low light</a>, <a href="https://publications.waset.org/abstracts/search?q=RGB-D%20camera" title=" RGB-D camera"> RGB-D camera</a>, <a href="https://publications.waset.org/abstracts/search?q=vision%20based" title=" vision based"> vision based</a> </p> <a href="https://publications.waset.org/abstracts/66057/visual-search-based-indoor-localization-in-low-light-via-rgb-d-camera" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66057.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">460</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">495</span> Influence of Roofing Material on Indoor Thermal Comfort of Bamboo House</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thet%20Su%20Hlaing">Thet Su Hlaing</a>, <a href="https://publications.waset.org/abstracts/search?q=Shoichi%20Kojima"> Shoichi Kojima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The growing desire for better indoor thermal performance with moderate energy consumption is becoming an issue for challenging today’s built environment. Studies related to the effective way of enhancing indoor thermal comfort had been done by approaching in numerous ways. Few studies have been focused on the correlation between building material and indoor thermal comfort of vernacular house. This paper analyzes the thermal comfort conditions of Bamboo House, mostly located in a hot and humid region. Depending on the roofing material, how the indoor environment varies will be observed through monitoring indoor and outdoor comfort measurement of Bamboo house as well as occupants’ preferable comfort condition. The result revealed that the indigenous roofing material mostly influences the indoor thermal environment by performing to have less effect from the outdoor temperature. It can keep the room cool with moderate thermal comfort, especially in the early morning and night, in the summertime without mechanical device assistance. After analyzing the performance of roofing material, which effect on indoor thermal comfort for 24 hours, it can be efficiently managed the time for availing mechanical cooling devices and make it supply only the necessary period of a day, which will lead to a partially reduce energy consumption. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bamboo%20house" title="bamboo house">bamboo house</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20and%20humid%20climate" title=" hot and humid climate"> hot and humid climate</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20thermal%20comfort" title=" indoor thermal comfort"> indoor thermal comfort</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20indigenous%20roofing%20material" title=" local indigenous roofing material"> local indigenous roofing material</a> </p> <a href="https://publications.waset.org/abstracts/117485/influence-of-roofing-material-on-indoor-thermal-comfort-of-bamboo-house" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/117485.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">185</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">494</span> A Study of the Implications for the Health and Wellbeing of Energy-Efficient House Occupants: A UK-Based Investigation of Indoor Climate and Indoor Air Quality</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Patricia%20Kermeci">Patricia Kermeci</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Policies related to the reduction of both carbon dioxide and energy consumption within the residential sector have contributed towards a growing number of energy-efficient houses being built in several countries. Many of these energy-efficient houses rely on the construction of very well insulated and highly airtight structures, ventilated mechanically. Although energy-efficient houses are indeed more energy efficient than conventional houses, concerns have been raised over the quality of their indoor air and, consequently, the possible adverse health and wellbeing effects for their occupants. Using a longitudinal study design over three different weather seasons (winter, spring and summer), this study has investigated the indoor climate and indoor air quality of different rooms (bedroom, living room and kitchen) in five energy-efficient houses and four conventional houses in the UK. Occupants have kept diaries of their activities during the studied periods and interviews have been conducted to investigate possible behavioural explanations for the findings. Data has been compared with reviews of epidemiological, toxicological and other health related published literature to reveals three main findings. First, it shows that the indoor environment quality of energy-efficient houses cannot be treated as a holistic entity as different rooms presented dissimilar indoor climate and indoor air quality. Thus, such differences might contribute to the health and wellbeing of occupants in different ways. Second, the results show that the indoor environment quality of energy-efficient houses can vary following changes in weather season, leaving occupants at a lower or higher risk of adverse health and wellbeing effects during different weather seasons. Third, one cannot assume that even identical energy-efficient houses provide a similar indoor environment quality. Fourth, the findings reveal that the practices and behaviours of the occupants of energy-efficient houses likely determine whether they enjoy a healthier indoor environment when compared with their control houses. In conclusion, it has been considered vital to understand occupants’ practices and behaviours in order to explain the ways they might contribute to the indoor climate and indoor air quality in energy-efficient houses. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy-efficient%20house" title="energy-efficient house">energy-efficient house</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20and%20wellbeing" title=" health and wellbeing"> health and wellbeing</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20environment" title=" indoor environment"> indoor environment</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air%20quality" title=" indoor air quality"> indoor air quality</a> </p> <a href="https://publications.waset.org/abstracts/61494/a-study-of-the-implications-for-the-health-and-wellbeing-of-energy-efficient-house-occupants-a-uk-based-investigation-of-indoor-climate-and-indoor-air-quality" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61494.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">230</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">493</span> Exploring People’s Perceptions of Indoor Plants through the Lens of Para-Social Relationships Theory</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ivashkina%20Elizaveta">Ivashkina Elizaveta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Despite significant research on the positive effects of houseplants on human life, we know almost nothing about how people perceive plants and their attitudes toward them. The following study seeks to fill this void by applying para-social relationships (PSRs) theory to analyze individuals’ perceptions of houseplants. We reveal how people form and maintain PSRs with indoor plants using 15 semi-structured in-depth interviews with Russian-speaking university students who had a close bond with their indoor plants when the study was conducted. The findings indicate that the process of forming PSRs is influenced by factors such as exposure and homophily. Students develop a sense of companionship with their indoor plants, which contributes to establishing a PSR. Participants reported engaging in various activities, such as regular care, communication, and interaction with their plants. The insights gained from this research have implications for horticultural therapy, environmental psychology, and indoor gardening practices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=para-social%20relationships" title="para-social relationships">para-social relationships</a>, <a href="https://publications.waset.org/abstracts/search?q=plants" title=" plants"> plants</a>, <a href="https://publications.waset.org/abstracts/search?q=people-plant%20interaction" title=" people-plant interaction"> people-plant interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20plants" title=" indoor plants"> indoor plants</a>, <a href="https://publications.waset.org/abstracts/search?q=qualitative%20research" title=" qualitative research"> qualitative research</a> </p> <a href="https://publications.waset.org/abstracts/175220/exploring-peoples-perceptions-of-indoor-plants-through-the-lens-of-para-social-relationships-theory" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/175220.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">66</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">492</span> Long-Term Indoor Air Monitoring for Students with Emphasis on Particulate Matter (PM2.5) Exposure </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyedtaghi%20Mirmohammadi">Seyedtaghi Mirmohammadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamshid%20Yazdani"> Jamshid Yazdani</a>, <a href="https://publications.waset.org/abstracts/search?q=Syavash%20Etemadi%20Nejad"> Syavash Etemadi Nejad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the main indoor air parameters in classrooms is dust pollution and it depends on the particle size and exposure duration. However, there is a lake of data about the exposure level to PM2.5 concentrations in rural area classrooms. The objective of the current study was exposure assessment for PM2.5 for students in the classrooms. One year monitoring was carried out for fifteen schools by time-series sampling to evaluate the indoor air PM2.5 in the rural district of Sari city, Iran. A hygrometer and thermometer were used to measure some psychrometric parameters (temperature, relative humidity, and wind speed) and Real-Time Dust Monitor, (MicroDust Pro, Casella, UK) was used to monitor particulate matters (PM2.5) concentration. The results show the mean indoor PM2.5 concentration in the studied classrooms was 135µg/m3. The regression model indicated that a positive correlation between indoor PM2.5 concentration and relative humidity, also with distance from city center and classroom size. Meanwhile, the regression model revealed that the indoor PM2.5 concentration, the relative humidity, and dry bulb temperature was significant at 0.05, 0.035, and 0.05 levels, respectively. A statistical predictive model was obtained from multiple regressions modeling for indoor PM2.5 concentration and indoor psychrometric parameters conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=classrooms" title="classrooms">classrooms</a>, <a href="https://publications.waset.org/abstracts/search?q=concentration" title=" concentration"> concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=humidity" title=" humidity"> humidity</a>, <a href="https://publications.waset.org/abstracts/search?q=particulate%20matters" title=" particulate matters"> particulate matters</a>, <a href="https://publications.waset.org/abstracts/search?q=regression" title=" regression"> regression</a> </p> <a href="https://publications.waset.org/abstracts/21397/long-term-indoor-air-monitoring-for-students-with-emphasis-on-particulate-matter-pm25-exposure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21397.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">335</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">491</span> Childhood Respiratory Diseases Related to Indoor and Outdoor Air Temperature in Shanghai, China</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chanjuan%20Sun">Chanjuan Sun</a>, <a href="https://publications.waset.org/abstracts/search?q=Shijie%20Hong"> Shijie Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Jialing%20Zhang"> Jialing Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuchao%20Guo"> Yuchao Guo</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhijun%20Zou"> Zhijun Zou</a>, <a href="https://publications.waset.org/abstracts/search?q=Chen%20Huang"> Chen Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Studies on associations between air temperature and childhood respiratory diseases are lack in China. Objectives: We aim to analyze the relationship between air temperature and childhood respiratory diseases. Methods: We conducted the on-site inspection into 454 residences and questionnaires survey. Indoor air temperature were from field inspection and outdoor air temperature were from website. Multiple logistic regression analyses were used to investigate the associations. Results: Indoor extreme hot air temperature was positively correlated with duration of a common cold (>=2 weeks), and outdoor extreme hot air temperature was also positively related with pneumonia among children. Indoor and outdoor extreme cold air temperature was a risk factor for rhinitis among children. The biggest indoor air temperature difference (indoor maximum air temperature minus indoor minimum air temperature) (Imax minus Imin) (the 4th quartile, >4 oC) and outdoor air temperature difference (outdoor maximum air temperature minus outdoor minimum air temperature) (Omax minus Omin) (the 4th quartile, >8oC) were positively related to pneumonia among children. Meanwhile, indoor air temperature difference (Imax minus Imin) (the 4th quartile, >4 oC) was positively correlated with diagnosed asthma among children. Air temperature difference between indoor and outdoor was negatively related with the most childhood respiratory diseases. This may be partly related to the avoidance behavior. Conclusions: Improper air temperature may affect the respiratory diseases among children. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20temperature" title="air temperature">air temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=extreme%20air%20temperature" title=" extreme air temperature"> extreme air temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20temperature%20difference" title=" air temperature difference"> air temperature difference</a>, <a href="https://publications.waset.org/abstracts/search?q=respiratory%20diseases" title=" respiratory diseases"> respiratory diseases</a>, <a href="https://publications.waset.org/abstracts/search?q=children" title=" children"> children</a> </p> <a href="https://publications.waset.org/abstracts/120913/childhood-respiratory-diseases-related-to-indoor-and-outdoor-air-temperature-in-shanghai-china" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120913.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">173</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">490</span> Enhance Indoor Environment in Buildings and Its Effect on Improving Occupant's Health</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Imad%20M.%20Assali">Imad M. Assali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, the world main problem is a global warming and climate change affecting both outdoor and indoor environments, especially the air quality (AQ) as a result of vast migration of people from rural areas to urban areas. Therefore, cities became more crowded and denser from an irregular population increase, along with increasing urbanization caused many problems for the environment such as increasing the land prices, changes in life style, and the new buildings are not adapted to the climate producing uncomfortable and unhealthy indoor building conditions. As interior environments are the places that create the most intimate relationship with the user. Consequently, the indoor environment quality (IEQ) for buildings became uncomfortable and unhealthy for its occupants. The symptoms commonly associated with poor indoor environment such as itchy, headache, fatigue, and respiratory complaints such as cough and congestion, etc. The symptoms tend to improve over time or even disappear when people are away from the building. Therefore, designing a healthy indoor environment to fulfill human needs is the main concern for architects and interior designer. However, this research explores how occupant expectations and environmental attitudes may influence occupant health and satisfaction within the context of the indoor environment. In doing so, it reviews and contributes to the methods and tools used to evaluate only the indoor environment quality (IEQ) components of building performance. Its main aim is to review the literature on indoor human comfort. This is followed by a review of previous papers published related to human comfort. Finally, this paper will provide possible approaches in design level of healthy buildings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sustainable%20building" title="sustainable building">sustainable building</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20environment%20quality%20%28IEQ%29" title=" indoor environment quality (IEQ)"> indoor environment quality (IEQ)</a>, <a href="https://publications.waset.org/abstracts/search?q=occupant%27s%20health" title=" occupant's health"> occupant's health</a>, <a href="https://publications.waset.org/abstracts/search?q=active%20system" title=" active system"> active system</a>, <a href="https://publications.waset.org/abstracts/search?q=sick%20building%20syndrome%20%28SBS%29" title=" sick building syndrome (SBS)"> sick building syndrome (SBS)</a> </p> <a href="https://publications.waset.org/abstracts/45472/enhance-indoor-environment-in-buildings-and-its-effect-on-improving-occupants-health" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45472.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">362</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">489</span> Indoor Temperature Estimation with FIR Filter Using R-C Network Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sung%20Hyun%20You">Sung Hyun You</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeong%20Hoon%20Kim"> Jeong Hoon Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Dae%20Ki%20Kim"> Dae Ki Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Choon%20Ki%20Ahn"> Choon Ki Ahn</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we proposed a new strategy for estimating indoor temperature based on the modified resistance capacitance (R–C) network thermal dynamic model. Using minimum variance finite impulse response (FIR) filter, accurate indoor temperature estimation can be achieved. Our study is clarified by the experimental validation of the proposed indoor temperature estimation method. This experiment scenario environment is composed of a demand response (DR) server and home energy management system (HEMS) in a test bed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20consumption" title="energy consumption">energy consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance-capacitance%20network%20model" title=" resistance-capacitance network model"> resistance-capacitance network model</a>, <a href="https://publications.waset.org/abstracts/search?q=demand%20response" title=" demand response"> demand response</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20impulse%20response%20filter" title=" finite impulse response filter"> finite impulse response filter</a> </p> <a href="https://publications.waset.org/abstracts/65608/indoor-temperature-estimation-with-fir-filter-using-r-c-network-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65608.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">447</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">488</span> Design Criteria for Achieving Acceptable Indoor Radon Concentration </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Valdbj%C3%B8rn%20Rasmussen">T. Valdbjørn Rasmussen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Design criteria for achieving an acceptable indoor radon concentration are presented in this paper. The paper suggests three design criteria. These criteria have to be considered at the early stage of the building design phase to meet the latest recommendations from the World Health Organization in most countries. The three design criteria are; first, establishing a radon barrier facing the ground; second, lowering the air pressure in the lower zone of the slab on ground facing downwards; third, diluting the indoor air with outdoor air. The first two criteria can prevent radon from infiltrating from the ground, and the third criteria can dilute the indoor air. By combining these three criteria, the indoor radon concentration can be lowered achieving an acceptable level. In addition, a cheap and reliable method for measuring the radon concentration in the indoor air is described. The provision on radon in the Danish Building Regulations complies with the latest recommendations from the World Health Organization. Radon can cause lung cancer and it is not known whether there is a lower limit for when it is not harmful to human beings. Therefore, it is important to reduce the radon concentration as much as possible in buildings. Airtightness is an important factor when dealing with buildings. It is important to avoid air leakages in the building envelope both facing the atmosphere, e.g. in compliance with energy requirements, but also facing the ground, to meet the requirements to ensure and control the indoor environment. Infiltration of air from the ground underneath a building is the main providing source of radon to the indoor air. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=radon" title="radon">radon</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20radiation" title=" natural radiation"> natural radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=barrier" title=" barrier"> barrier</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure%20lowering" title=" pressure lowering"> pressure lowering</a>, <a href="https://publications.waset.org/abstracts/search?q=ventilation" title=" ventilation"> ventilation</a> </p> <a href="https://publications.waset.org/abstracts/39332/design-criteria-for-achieving-acceptable-indoor-radon-concentration" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39332.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">354</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">487</span> Assessment of Personal Level Exposures to Particulate Matter among Children in Rural Preliminary Schools as an Indoor Air Pollution Monitoring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyedtaghi%20Mirmohammadi">Seyedtaghi Mirmohammadi</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Yazdani"> J. Yazdani</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20Asadi"> S. M. Asadi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Rokni"> M. Rokni</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Toosi"> A. Toosi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are many indoor air quality studies with an emphasis on indoor particulate matters (PM2.5) monitoring. Whereas, there is a lake of data about indoor PM2.5 concentrations in rural area schools (especially in classrooms), since preliminary children are assumed to be more defenseless to health hazards and spend a large part of their time in classrooms. The objective of this study was indoor PM2.5 concentration quality assessment. Fifteen preliminary schools by time-series sampling were selected to evaluate the indoor air quality in the rural district of Sari city, Iran. Data on indoor air climate parameters (temperature, relative humidity and wind speed) were measured by a hygrometer and thermometer. Particulate matters (PM2.5) were collected and assessed by Real Time Dust Monitor, (MicroDust Pro, Casella, UK). The mean indoor PM2.5 concentration in the studied classrooms was 135µg/m3 in average. The multiple linear regression revealed that a correlation between PM2.5 concentration and relative humidity, distance from city center and classroom size. Classroom size yields reasonable negative relationship, the PM2.5 concentration was ranged from 65 to 540μg/m3 and statistically significant at 0.05 level and the relative humidity was ranged from 70 to 85% and dry bulb temperature ranged from 28 to 29°C were statistically significant at 0.035 and 0.05 level, respectively. A statistical predictive model was obtained from multiple regressions modeling for PM2.5 and indoor psychrometric parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=particulate%20matters" title="particulate matters">particulate matters</a>, <a href="https://publications.waset.org/abstracts/search?q=classrooms" title=" classrooms"> classrooms</a>, <a href="https://publications.waset.org/abstracts/search?q=regression" title=" regression"> regression</a>, <a href="https://publications.waset.org/abstracts/search?q=concentration" title=" concentration"> concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=humidity" title=" humidity"> humidity</a> </p> <a href="https://publications.waset.org/abstracts/34116/assessment-of-personal-level-exposures-to-particulate-matter-among-children-in-rural-preliminary-schools-as-an-indoor-air-pollution-monitoring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34116.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">311</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">486</span> Three-Dimensional Positioning Method of Indoor Personnel Based on Millimeter Wave Radar Sensor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chao%20Wang">Chao Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Zuxue%20Xia"> Zuxue Xia</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenhai%20Xia"> Wenhai Xia</a>, <a href="https://publications.waset.org/abstracts/search?q=Rui%20Wang"> Rui Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jiayuan%20Hu"> Jiayuan Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Rui%20Cheng"> Rui Cheng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aiming at the application of indoor personnel positioning under smog conditions, this paper proposes a 3D positioning method based on the IWR1443 millimeter wave radar sensor. The problem that millimeter-wave radar cannot effectively form contours in 3D point cloud imaging is solved. The results show that the method can effectively achieve indoor positioning and scene construction, and the maximum positioning error of the system is 0.130m. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indoor%20positioning" title="indoor positioning">indoor positioning</a>, <a href="https://publications.waset.org/abstracts/search?q=millimeter%20wave%20radar" title=" millimeter wave radar"> millimeter wave radar</a>, <a href="https://publications.waset.org/abstracts/search?q=IWR1443%20sensor" title=" IWR1443 sensor"> IWR1443 sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=point%20cloud%20imaging" title=" point cloud imaging"> point cloud imaging</a> </p> <a href="https://publications.waset.org/abstracts/155483/three-dimensional-positioning-method-of-indoor-personnel-based-on-millimeter-wave-radar-sensor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155483.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">112</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">485</span> Indoor Real-Time Positioning and Mapping Based on Manhattan Hypothesis Optimization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Linhang%20Zhu">Linhang Zhu</a>, <a href="https://publications.waset.org/abstracts/search?q=Hongyu%20Zhu"> Hongyu Zhu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jiahe%20Liu"> Jiahe Liu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigated a method of indoor real-time positioning and mapping based on the Manhattan world assumption. In indoor environments, relying solely on feature matching techniques or other geometric algorithms for sensor pose estimation inevitably resulted in cumulative errors, posing a significant challenge to indoor positioning. To address this issue, we adopt the Manhattan world hypothesis to optimize the camera pose algorithm based on feature matching, which improves the accuracy of camera pose estimation. A special processing method was applied to image data frames that conformed to the Manhattan world assumption. When similar data frames appeared subsequently, this could be used to eliminate drift in sensor pose estimation, thereby reducing cumulative errors in estimation and optimizing mapping and positioning. Through experimental verification, it is found that our method achieves high-precision real-time positioning in indoor environments and successfully generates maps of indoor environments. This provides effective technical support for applications such as indoor navigation and robot control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manhattan%20world%20hypothesis" title="Manhattan world hypothesis">Manhattan world hypothesis</a>, <a href="https://publications.waset.org/abstracts/search?q=real-time%20positioning%20and%20mapping" title=" real-time positioning and mapping"> real-time positioning and mapping</a>, <a href="https://publications.waset.org/abstracts/search?q=feature%20matching" title=" feature matching"> feature matching</a>, <a href="https://publications.waset.org/abstracts/search?q=loopback%20detection" title=" loopback detection"> loopback detection</a> </p> <a href="https://publications.waset.org/abstracts/173745/indoor-real-time-positioning-and-mapping-based-on-manhattan-hypothesis-optimization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173745.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">61</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">484</span> Measurement and Research of Green Office Building Operational Performance in China: A Case Study of a Green Office Building in Zhejiang Province</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xuechen%20Gui">Xuechen Gui</a>, <a href="https://publications.waset.org/abstracts/search?q=Jian%20Ge"> Jian Ge</a>, <a href="https://publications.waset.org/abstracts/search?q=Senmiao%20Li"> Senmiao Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, green buildings in China have been developing rapidly and have developed into a wide variety of types, of which office building is a very important part. In many green office buildings, the energy consumption of building operation is high; the indoor environment quality needs to be improved, and the level of occupants’ satisfaction is low. This paper conducted a one-year measurement of operational performance of a green office building in Zhejiang Province. The measurement includes energy consumption of the building's one-year operation, the quality of the indoor environment and occupants’ satisfaction in different seasons. The energy consumption is collected from the power bureau. The quality of the indoor environment have been measured at different measuring points including offices, meeting rooms and reception for the whole year. The satisfaction of occupants are obtained from questionnaires. The results are compared with given standards and goals and the reasons why occupants are dissatisfied with the indoor environment are analyzed. Regarding energy consumption, the energy consumption of the building operational performance is much higher than the standard. Regarding the indoor environment, the temperature and humidity meet the standard for most of the time, but fine particulate matter (PM2.5) concentration is pretty high. Regarding occupants satisfaction, occupants have a higher expectation for indoor air quality even when the indoor air quality is well and occupants prefer a relatively humid environment. However the overall satisfaction is more than 80%, which indicates that occupants have a higher tolerability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=green%20office%20building" title="green office building">green office building</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20consumption" title=" energy consumption"> energy consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20environment%20quality" title=" indoor environment quality"> indoor environment quality</a>, <a href="https://publications.waset.org/abstracts/search?q=occupants%20satisfaction" title=" occupants satisfaction"> occupants satisfaction</a>, <a href="https://publications.waset.org/abstracts/search?q=operational%20performance" title=" operational performance"> operational performance</a> </p> <a href="https://publications.waset.org/abstracts/96621/measurement-and-research-of-green-office-building-operational-performance-in-china-a-case-study-of-a-green-office-building-in-zhejiang-province" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96621.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">177</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">483</span> Relationship of Indoor and Outdoor Levels of Black Carbon in an Urban Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daria%20Pashneva">Daria Pashneva</a>, <a href="https://publications.waset.org/abstracts/search?q=Julija%20Pauraite"> Julija Pauraite</a>, <a href="https://publications.waset.org/abstracts/search?q=Agne%20Minderyte"> Agne Minderyte</a>, <a href="https://publications.waset.org/abstracts/search?q=Vadimas%20Dudoitis"> Vadimas Dudoitis</a>, <a href="https://publications.waset.org/abstracts/search?q=Lina%20Davuliene"> Lina Davuliene</a>, <a href="https://publications.waset.org/abstracts/search?q=Kristina%20Plauskaite"> Kristina Plauskaite</a>, <a href="https://publications.waset.org/abstracts/search?q=Inga%20Garbariene"> Inga Garbariene</a>, <a href="https://publications.waset.org/abstracts/search?q=Steigvile%20Bycenkiene"> Steigvile Bycenkiene</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Black carbon (BC) has received particular attention around the world, not only for its impact on regional and global climate change but also for its impact on air quality and public health. In order to study the relationship between indoor and outdoor BC concentrations, studies were carried out in Vilnius, Lithuania. The studies are aimed at determining the relationship of concentrations, identifying dependencies during the day and week with a further opportunity to analyze the key factors affecting the indoor concentration of BC. In this context, indoor and outdoor continuous real-time measurements of optical BC-related light absorption by aerosol particles were carried out during the cold season (from October to December 2020). The measurement venue was an office located in an urban background environment. Equivalent black carbon (eBC) mass concentration was measured by an Aethalometer (Magee Scientific, model AE-31). The optical transmission of carbonaceous aerosol particles was measured sequentially at seven wavelengths (λ= 370, 470, 520, 590, 660, 880, and 950 nm), where the eBC mass concentration was derived from the light absorption coefficient (σab) at 880 nm wavelength. The diurnal indoor eBC mass concentration was found to vary in the range from 0.02 to 0.08 µgm⁻³, while the outdoor eBC mass concentration - from 0.34 to 0.99 µgm⁻³. Diurnal variations of eBC mass concentration outdoor vs. indoor showed an increased contribution during 10:00 and 12:00 AM (GMT+2), with the highest indoor eBC mass concentration of 0.14µgm⁻³. An indoor/outdoor eBC ratio (I/O) was below one throughout the entire measurement period. The weekend levels of eBC mass concentration were lower than in weekdays for indoor and outdoor for 33% and 28% respectively. Hourly mean mass concentrations of eBC for weekdays and weekends show diurnal cycles, which could be explained by the periodicity of traffic intensity and heating activities. The results show a moderate influence of outdoor eBC emissions on the indoor eBC level. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=black%20carbon" title="black carbon">black carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title=" climate change"> climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air%20quality" title=" indoor air quality"> indoor air quality</a>, <a href="https://publications.waset.org/abstracts/search?q=I%2FO%20ratio" title=" I/O ratio"> I/O ratio</a> </p> <a href="https://publications.waset.org/abstracts/135114/relationship-of-indoor-and-outdoor-levels-of-black-carbon-in-an-urban-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/135114.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">199</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">482</span> Formaldehyde Degradation from Indoor Air by Encapsulated Microbial Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C.%20C.%20Castro">C. C. Castro</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Senechal"> T. Senechal</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Lahem"> D. Lahem</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20L.%20Hantson"> A. L. Hantson</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Formaldehyde is one of the most representative volatile organic compounds present in the indoor air of residential units and workplaces. Increased attention has been given to this toxic compound because of its carcinogenic effect in health. Biological or enzymatic transformation is being explored to degrade this pollutant. Pseudomonas putida is a bacteria able to synthesize formaldehyde dehydrogenase, an enzyme known to use formaldehyde as a substrate and transform it into less toxic compounds. The immobilization of bacterial cells in the surface of different supports through spraying or dip-coating is herein proposed. The determination of the enzymatic activity on the coated surfaces was performed as well as the study of its effect on formaldehyde degradation in an isolated chamber. Results show that the incorporation of microbial cells able to synthesize depolluting enzymes can be an innovative, low-cost, effective and environmentally friendly solution for indoor air depollution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cells%20encapsulation" title="cells encapsulation">cells encapsulation</a>, <a href="https://publications.waset.org/abstracts/search?q=formaldehyde" title=" formaldehyde"> formaldehyde</a>, <a href="https://publications.waset.org/abstracts/search?q=formaldehyde%20dehydrogenase" title=" formaldehyde dehydrogenase"> formaldehyde dehydrogenase</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air%20depollution" title=" indoor air depollution"> indoor air depollution</a> </p> <a href="https://publications.waset.org/abstracts/98563/formaldehyde-degradation-from-indoor-air-by-encapsulated-microbial-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98563.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">177</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">481</span> An Indoor Guidance System Combining Near Field Communication and Bluetooth Low Energy Beacon Technologies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rung-Shiang%20Cheng">Rung-Shiang Cheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei-Jun%20Hong"> Wei-Jun Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Jheng-Syun%20Wang"> Jheng-Syun Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Kawuu%20W.%20Lin"> Kawuu W. Lin </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Users rely increasingly on Location-Based Services (LBS) and automated navigation/guidance systems nowadays. However, while such services are easily implemented in outdoor environments using Global Positioning System (GPS) technology, a requirement still exists for accurate localization and guidance schemes in indoor settings. Accordingly, the present study presents a methodology based on GPS, Bluetooth Low Energy (BLE) beacons, and Near Field Communication (NFC) technology. Through establishing graphic information and the design of algorithm, this study develops a guidance system for indoor and outdoor on smartphones, with aim to provide users a smart life through this system. The presented system is implemented on a smartphone and evaluated on a student campus environment. The experimental results confirm the ability of the presented app to switch automatically from an outdoor mode to an indoor mode and to guide the user to the requested target destination via the shortest possible route. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beacon" title="beacon">beacon</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor" title=" indoor"> indoor</a>, <a href="https://publications.waset.org/abstracts/search?q=BLE" title=" BLE"> BLE</a>, <a href="https://publications.waset.org/abstracts/search?q=Dijkstra%20algorithm" title=" Dijkstra algorithm"> Dijkstra algorithm</a> </p> <a href="https://publications.waset.org/abstracts/49106/an-indoor-guidance-system-combining-near-field-communication-and-bluetooth-low-energy-beacon-technologies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49106.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">302</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">480</span> Indoor Microclimate in a Historic Library: Considerations on the Positive Effect of Historic Books on the Stability of Indoor Relative Humidity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Magda%20Posani">Magda Posani</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Do%20Rosario%20Veiga"> Maria Do Rosario Veiga</a>, <a href="https://publications.waset.org/abstracts/search?q=Vasco%20Peixoto%20De%20Freitas"> Vasco Peixoto De Freitas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The presented research considers the hygrothermal data acquired in the municipal library of Porto. The library is housed in an XVIII century convent and, among all the rooms in the construction, one, in particular, was chosen for the monitoring campaign because of the presence of a great number of historic books. Temperature and relative humidity, as well as CO₂ concentration, were measured for six consecutive months, in the period December 24th - June 24th. The indoor environment of the building is controlled with a heating and cooling system that is turned on only during the opening hours of the library. The ventilation rate is low because the windows are kept closed, and there is no forced ventilation. The micro-climate is analyzed in terms of users’ comfort and degradation risks for historic books and valuable building surfaces. Through a comparison between indoor and outdoor measured hygrothermal data, indoor relative humidity appears very stable. The influence of the hygroscopicity of books on the stabilization of indoor relative humidity is therefore investigated in detail. The paper finally discusses the benefits given by the presence of historic books in libraries with intermittent heating and cooling. The possibility of obtaining a comfortable and stable indoor climate with low use of HVAC systems in these conditions, while avoiding degradation risks for books and historic building components, is further debated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=books" title="books">books</a>, <a href="https://publications.waset.org/abstracts/search?q=historic%20buildings" title=" historic buildings"> historic buildings</a>, <a href="https://publications.waset.org/abstracts/search?q=hygroscopicity" title=" hygroscopicity"> hygroscopicity</a>, <a href="https://publications.waset.org/abstracts/search?q=relative%20humidity" title=" relative humidity"> relative humidity</a> </p> <a href="https://publications.waset.org/abstracts/110315/indoor-microclimate-in-a-historic-library-considerations-on-the-positive-effect-of-historic-books-on-the-stability-of-indoor-relative-humidity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110315.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">152</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">479</span> Field Study for Evaluating Winter Thermal Performance of Auckland School Buildings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bin%20Su">Bin Su</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Auckland has a temperate climate with comfortable warm, dry summers and mild, wet winters. An Auckland school normally does not need air conditioning for cooling during the summer and only needs heating during the winter. The Auckland school building thermal design should more focus on winter thermal performance and indoor thermal comfort for energy efficiency. This field study of testing indoor and outdoor air temperatures, relative humidity and indoor surface temperatures of three classrooms with different envelopes were carried out in the Avondale College during the winter months in 2013. According to the field study data, this study is to compare and evaluate winter thermal performance and indoor thermal conditions of school buildings with different envelopes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=building%20envelope" title="building envelope">building envelope</a>, <a href="https://publications.waset.org/abstracts/search?q=building%20mass%20effect" title=" building mass effect"> building mass effect</a>, <a href="https://publications.waset.org/abstracts/search?q=building%20thermal%20comfort" title=" building thermal comfort"> building thermal comfort</a>, <a href="https://publications.waset.org/abstracts/search?q=building%20thermal%20performance" title=" building thermal performance"> building thermal performance</a>, <a href="https://publications.waset.org/abstracts/search?q=school%20building" title=" school building "> school building </a> </p> <a href="https://publications.waset.org/abstracts/18103/field-study-for-evaluating-winter-thermal-performance-of-auckland-school-buildings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18103.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">428</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">478</span> Enhanced Weighted Centroid Localization Algorithm for Indoor Environments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I.%20Ni%C5%BEeti%C4%87%20Kosovi%C4%87">I. Nižetić Kosović</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Jagu%C5%A1t"> T. Jagušt</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lately, with the increasing number of location-based applications, demand for highly accurate and reliable indoor localization became urgent. This is a challenging problem, due to the measurement variance which is the consequence of various factors like obstacles, equipment properties and environmental changes in complex nature of indoor environments. In this paper we propose low-cost custom-setup infrastructure solution and localization algorithm based on the Weighted Centroid Localization (WCL) method. Localization accuracy is increased by several enhancements: calibration of RSSI values gained from wireless nodes, repetitive measurements of RSSI to exclude deviating values from the position estimation, and by considering orientation of the device according to the wireless nodes. We conducted several experiments to evaluate the proposed algorithm. High accuracy of ~1m was achieved. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indoor%20environment" title="indoor environment">indoor environment</a>, <a href="https://publications.waset.org/abstracts/search?q=received%20signal%20strength%20indicator" title=" received signal strength indicator"> received signal strength indicator</a>, <a href="https://publications.waset.org/abstracts/search?q=weighted%20centroid%20localization" title=" weighted centroid localization"> weighted centroid localization</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20localization" title=" wireless localization"> wireless localization</a> </p> <a href="https://publications.waset.org/abstracts/11878/enhanced-weighted-centroid-localization-algorithm-for-indoor-environments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11878.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">232</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">477</span> Effects of Smoking on the Indoor Air Quality and COVID-19</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sonam%20Sandal">Sonam Sandal</a>, <a href="https://publications.waset.org/abstracts/search?q=Susan%20Verghese%20P."> Susan Verghese P.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The phrase "environmental tobacco smoke" (ETS) refers to exposure to tobacco smoke that isn't from your own smoking but instead is caused by being in close proximity to someone else's cigar, cigarette, or pipe smoke. Environmental cigarette smoke is one of the main contributors to indoor air pollution (IAP), which is exceedingly harmful to human health and results in millions of deaths each year, according to the World Health Organization. Sidestream smoke (SS), which is discharged from a cigarette's burning end in between puffs, is the primary cause of ETS. The bulk of the ETS residue is composed of gases that are produced while smoking through the cigarette paper, mainstream smoke (MS) ingested, and side stream smoke emitted while inhaling a puff from the burning end. Each of these mixtures—SS, ETS, and MS—is an aerosol composed of an IAP-causing vapor phase and a particle phase. Therefore, indoor air-cleaning equipment designed to remove particles will not significantly alter nicotine exposure but will alter the concentrations of other dangerous substances, including particulate matter (PM), PM 2.5, and PM 10. In conclusion, indoor airborne contaminants pose serious risks to human health. ETS degrades the air quality, and when someone breathes this bad air, it weakens their lungs and makes them more susceptible to COVID-19. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pm%2010" title="pm 10">pm 10</a>, <a href="https://publications.waset.org/abstracts/search?q=covid-19" title=" covid-19"> covid-19</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air%20pollution" title=" indoor air pollution"> indoor air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=cigarette%20smoke." title=" cigarette smoke."> cigarette smoke.</a>, <a href="https://publications.waset.org/abstracts/search?q=pm%202.5" title=" pm 2.5"> pm 2.5</a> </p> <a href="https://publications.waset.org/abstracts/172180/effects-of-smoking-on-the-indoor-air-quality-and-covid-19" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172180.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">71</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">476</span> Indoor Localization by Pattern Matching Method Based on Extended Database</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gyumin%20Hwang">Gyumin Hwang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jihong%20Lee"> Jihong Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper studied the CSS-based indoor localization system which is easy to implement, inexpensive to compose the systems, additionally CSS-based indoor localization system covers larger area than other system. However, this system has problem which is affected by reflected distance data. This problem in localization is caused by the multi-path effect. Error caused by multi-path is difficult to be corrected because the indoor environment cannot be described. In this paper, in order to solve the problem by multi-path, we have supplemented the localization system by using pattern matching method based on extended database. Thereby, this method improves precision of estimated. Also this method is verified by experiments in gymnasium. Database was constructed by 1 m intervals, and 16 sample data were collected from random position inside the region of DB points. As a result, this paper shows higher accuracy than existing method through graph and table. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chirp%20spread%20spectrum" title="chirp spread spectrum">chirp spread spectrum</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20localization" title=" indoor localization"> indoor localization</a>, <a href="https://publications.waset.org/abstracts/search?q=pattern-matching" title=" pattern-matching"> pattern-matching</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20of%20arrival" title=" time of arrival"> time of arrival</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-path" title=" multi-path"> multi-path</a>, <a href="https://publications.waset.org/abstracts/search?q=mahalanobis%20distance" title=" mahalanobis distance"> mahalanobis distance</a>, <a href="https://publications.waset.org/abstracts/search?q=reception%20rate" title=" reception rate"> reception rate</a>, <a href="https://publications.waset.org/abstracts/search?q=simultaneous%20localization%20and%20mapping" title=" simultaneous localization and mapping"> simultaneous localization and mapping</a>, <a href="https://publications.waset.org/abstracts/search?q=laser%20range%20finder" title=" laser range finder"> laser range finder</a> </p> <a href="https://publications.waset.org/abstracts/4353/indoor-localization-by-pattern-matching-method-based-on-extended-database" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4353.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">244</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">475</span> Environmental Parameters Influence on Chronic Obstructive Pulmonary Disease (COPD) Patients’ Quality of Life</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kwok%20W.%20Mui">Kwok W. Mui</a>, <a href="https://publications.waset.org/abstracts/search?q=Ling%20T.%20Wong"> Ling T. Wong</a>, <a href="https://publications.waset.org/abstracts/search?q=Nai%20K.%20K.%20Fong"> Nai K. K. Fong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chronic obstructive pulmonary disease (COPD) is the fifth leading cause of death in Hong Kong. Investigators are eager to explore the environmental risk factors for COPD such as air pollution and occupational exposure. Through a cross-sectional survey, this study investigates the impact of air quality to the quality of life of patients with the COPD in terms of the scores of the (Chinese) chronic respiratory questionnaire (CCRQ) and the measurements of indoor air quality (IAQ) and Moser’s activities of daily living (ADL). Strong relationships between a number of indoor/outdoor environmental parameters were found and CRQ sub-scores for patients of COPD and thus indoor air pollutants must be monitored for future studies related to QOL for patients with COPD. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chronic%20obstructive%20pulmonary%20disease%20%28COPD%29" title="chronic obstructive pulmonary disease (COPD)">chronic obstructive pulmonary disease (COPD)</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air%20pollutants" title=" indoor air pollutants"> indoor air pollutants</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20of%20life" title=" quality of life"> quality of life</a>, <a href="https://publications.waset.org/abstracts/search?q=chronic%20respiratory%20questionnaire%20%28CRQ%29" title=" chronic respiratory questionnaire (CRQ)"> chronic respiratory questionnaire (CRQ)</a> </p> <a href="https://publications.waset.org/abstracts/39989/environmental-parameters-influence-on-chronic-obstructive-pulmonary-disease-copd-patients-quality-of-life" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39989.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">424</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">474</span> Factors Related to Protective Behavior on Indoor Pollution among Pregnant Women in Nakhon Pathom Province, Thailand</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yuri%20Teraoka">Yuri Teraoka</a>, <a href="https://publications.waset.org/abstracts/search?q=Cheerawit%20Rattanapan"> Cheerawit Rattanapan</a>, <a href="https://publications.waset.org/abstracts/search?q=Aroonsri%20Mongkolchati"> Aroonsri Mongkolchati</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This cross sectional analytic study was carried out to determine factors related to protective behavior on indoor pollution among pregnant women in Nakhon Pathom province, Thailand. A total of 319 pregnant women were enrolled at three antenatal care clinics in community hospital. Data were collected using simple random sampling from April 2015 to May 2015 using a structured self-administration questionnaire by well-trained research assistants. The result showed that around 73% pregnant women showed low level of low protective behavior on indoor pollution. Chi-square and multiple logistic regression were used to examine the factors and protective behavior on indoor pollution. After adjusting for confounding factors, this study found that tobacco smoking before pregnancy (AOR=2.15, 95% CI: 0.78-5.95) and low environmental health hazard (AOR=1.94, 95% CI: 1.09-3.49) were significant factors related to protective behavior on indoor pollution among pregnant women (p-value < 0.05). In conclusion, this study suggested that environmental health education campaign and environmental implementation program among pregnant woman are needed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thailand" title="Thailand">Thailand</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20health" title=" environmental health"> environmental health</a>, <a href="https://publications.waset.org/abstracts/search?q=protective%20behavior" title=" protective behavior"> protective behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=pregnant%20women" title=" pregnant women"> pregnant women</a> </p> <a href="https://publications.waset.org/abstracts/63277/factors-related-to-protective-behavior-on-indoor-pollution-among-pregnant-women-in-nakhon-pathom-province-thailand" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63277.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">364</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">473</span> Impact of Ventilation Systems on Indoor Air Quality in Swedish Primary School Classrooms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sarka%20Langer">Sarka Langer</a>, <a href="https://publications.waset.org/abstracts/search?q=Despoina%20Teli"> Despoina Teli</a>, <a href="https://publications.waset.org/abstracts/search?q=Blanka%20Cabovska"> Blanka Cabovska</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan-Olof%20Dalenb%C3%A4ck"> Jan-Olof Dalenbäck</a>, <a href="https://publications.waset.org/abstracts/search?q=Lars%20Ekberg"> Lars Ekberg</a>, <a href="https://publications.waset.org/abstracts/search?q=Gabriel%20Bek%C3%B6"> Gabriel Bekö</a>, <a href="https://publications.waset.org/abstracts/search?q=Pawel%20Wargocki"> Pawel Wargocki</a>, <a href="https://publications.waset.org/abstracts/search?q=Natalia%20Giraldo%20Vasquez"> Natalia Giraldo Vasquez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the study was to investigate the impact of various ventilation systems on indoor climate, air pollution, chemistry, and perception. Measurements of thermal environment and indoor air quality were performed in 45 primary school classrooms in Gothenburg, Sweden. The classrooms were grouped into three categories according to their ventilation system: category A) natural or exhaust ventilation or automated window opening; category B) balanced mechanical ventilation systems with constant air volume (CAV); and category C) balanced mechanical ventilation systems with variable air volume (VAV). A questionnaire survey about indoor air quality, perception of temperature, odour, noise and light, and sensation of well-being, alertness focus, etc., was distributed among the 10-12 years old children attending the classrooms. The results (medians) showed statistically significant differences between ventilation category A and categories B and C, but not between categories B and C in air change rates, median concentrations of carbon dioxide, individual volatile organic compounds formaldehyde and isoprene, in-door-to-outdoor ozone ratios and products of ozonolysis of squalene, a constituent of human skin oils, 6-methyl-5-hepten-2-one and decanal. Median ozone concentration, ozone loss -a difference between outdoor and indoor ozone concentrations- were different only between categories A and C. Median concentration of total VOCs and a perception index based on survey responses on perceptions and sensations indoors were not significantly different. In conclusion, ventilation systems have an impact on air change rates, indoor air quality, and chemistry, but the Swedish primary school children’s perception did not differ with the ventilation systems of the classrooms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indoor%20air%20pollutants" title="indoor air pollutants">indoor air pollutants</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20climate" title=" indoor climate"> indoor climate</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20chemistry" title=" indoor chemistry"> indoor chemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20change%20rate" title=" air change rate"> air change rate</a>, <a href="https://publications.waset.org/abstracts/search?q=perception" title=" perception"> perception</a> </p> <a href="https://publications.waset.org/abstracts/177851/impact-of-ventilation-systems-on-indoor-air-quality-in-swedish-primary-school-classrooms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177851.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">62</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">472</span> An Assessment of Thermal Comfort and Air Quality in Educational Space: A Case Study of Design Studios in the Arab Academy for Science, Technology and Maritime Transport, Alexandria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bakr%20Gomaa">Bakr Gomaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Hana%20Awad"> Hana Awad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A stuffy room is one of the indicators of poor indoor air quality. Through working in an educational building in Alexandria, it is noticed that one of the rooms is smelly. A field study is conducted in a private university building in Alexandria to achieve indoor sustainable educational environment. Additionally, the indoor air quality is empirically assessed, and thermal comfort is identified in educational buildings, in studio halls specifically during lecture hours. The current research uses qualitative and quantitative methods in the form of literature review, investigation and test measurements. At a similar time that the teachers and students fill in a questionnaire regarding the concept of indoor climate, thermal comfort variables are determined. The indoor thermal conditions of the studio are assessed through three variables including Fanger’s comfort indicators (calculated using PMV, predicted mean vote and PPD, predicted percentage of dissatisfied people), the actual people clothing and metabolic rate. Actual measurements of air quality are obtained in a case study in an architectural building. Results have proved that indoor climatic conditions as air flow and temperature are inconvenient to inhabitants. Regarding questionnaire results, occupants appear to be uncomfortable in both seasons, with result percentages out of the acceptable range. Finally, further researches will center on how to preserve thermal comfort in school buildings since it has a vital influence on the student’s knowledge. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=educational%20buildings" title="educational buildings">educational buildings</a>, <a href="https://publications.waset.org/abstracts/search?q=Indoor%20air%20quality" title=" Indoor air quality"> Indoor air quality</a>, <a href="https://publications.waset.org/abstracts/search?q=productivity" title=" productivity"> productivity</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20comfort" title=" thermal comfort"> thermal comfort</a> </p> <a href="https://publications.waset.org/abstracts/102974/an-assessment-of-thermal-comfort-and-air-quality-in-educational-space-a-case-study-of-design-studios-in-the-arab-academy-for-science-technology-and-maritime-transport-alexandria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102974.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">195</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=indoor%20air&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=indoor%20air&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=indoor%20air&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=indoor%20air&page=5">5</a></li> <li class="page-item"><a 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