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Kulshrestha</title> <meta name="description" content="Search results for: U. C. Kulshrestha"> <meta name="keywords" content="U. C. Kulshrestha"> <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" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="U. 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C. Kulshrestha"> <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> 8</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: U. C. Kulshrestha</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Chemistry and Sources of Solid Biofuel Derived Ambient Aerosols during Cooking and Non-Cooking Hours in Rural Area of Khairatpur, North-Central India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sudha%20Shukla">Sudha Shukla</a>, <a href="https://publications.waset.org/abstracts/search?q=Bablu%20Kumar"> Bablu Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Gyan%20Prakash%20Gupta"> Gyan Prakash Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=U.%20C.%20Kulshrestha"> U. C. Kulshrestha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Air pollutants emitted from solid biofuels during cooking are the major contributors to poor air quality, respiratory problems, and radiative forcing, etc. in rural areas of most of developing countries. The present study reports the chemical characteristics and sources of ambient aerosols and traces gases during cooking and non-cooking hours emitted during biofuel combustion in a village in North-Central India. Fine aerosol samples along with gaseous species (Sox, NOx, and NH₃) were collected during September 2010-March 2011 at Khairatpur village (KPV) which is located in the Uttar Pradesh state in North-Central India. Results indicated that most of the major ions in aerosols and Sox, NOx, and NH₃ gases were found to be higher during cooking hours as compared to non-cooking hours suggesting that solid biofuel combustion is an important source of air pollution. Results of Principal Component Analysis (PCA) revealed that combustion of solid biofuel, vehicular emissions, and brick kilns were the major sources of fine aerosols and trace gases in the village. A health survey was conducted to find out the relation between users of biofuels and their health effects and the results revealed that most of the women in the village were suffering from diseases associated with biofuel combustion during cooking. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ambient%20aerosols" title="ambient aerosols">ambient aerosols</a>, <a href="https://publications.waset.org/abstracts/search?q=biofuel%20combustion" title=" biofuel combustion"> biofuel combustion</a>, <a href="https://publications.waset.org/abstracts/search?q=cooking" title=" cooking"> cooking</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20survey" title=" health survey"> health survey</a>, <a href="https://publications.waset.org/abstracts/search?q=rural%20area" title=" rural area"> rural area</a> </p> <a href="https://publications.waset.org/abstracts/75925/chemistry-and-sources-of-solid-biofuel-derived-ambient-aerosols-during-cooking-and-non-cooking-hours-in-rural-area-of-khairatpur-north-central-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75925.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">240</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">7</span> Urban Dust Influence on the Foliar Surface and Biochemical Constituents of Selected Plants in the National Capital Region of Delhi, India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20P.%20Gupta">G. P. Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Kumar"> B. Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Singh"> S. Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=U.%20C.%20Kulshrestha"> U. C. Kulshrestha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Very high loadings of atmospheric dust in the Indian region contribute to remarkably higher levels of particulate matter. During dry weather conditions which prevail most of the year, dustfall is deposited onto the foliar surfaces affecting their morphology, stomata and biochemical constituents. This study reports chemical characteristics of dustfall, its effect on foliar morphology and biochemical constituents of two medicinal plants i.e. Morus (Morus alba) and Arjun (Terminalia arjuna) in the urban environment of National Capital Region (NCR) of Delhi at two sites i.e. Jawaharlal Nehru University (residential) and Sahibabad (industrial). Atmospheric dust was characterized for major anions (F-, Cl-, NO3-, SO4--) and cations (Na+, NH4+, K+, Mg++, Ca++) along with the biochemical parameters Chl a, Chl b, total chlorophyll, carotenoid, total soluble sugar, relative water content (RWC), pH, and ascorbic acid. The results showed that the concentrations of major ions in dustfall were higher at the industrial site as compared to the residential site due to the higher level of anthropogenic activities. Both the plant species grown at industrial site had significantly lower values of chlorophyll ‘a’, chlorophyll ‘b’, total chlorophyll, carotenoid but relatively higher values of total soluble sugar and ascorbic acid indicating stressful conditions due to industrial and vehicular emissions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dustfall" title="dustfall">dustfall</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20environment" title=" urban environment"> urban environment</a>, <a href="https://publications.waset.org/abstracts/search?q=biochemical%20constituents" title=" biochemical constituents"> biochemical constituents</a>, <a href="https://publications.waset.org/abstracts/search?q=atmospheric%20dust" title=" atmospheric dust "> atmospheric dust </a> </p> <a href="https://publications.waset.org/abstracts/2381/urban-dust-influence-on-the-foliar-surface-and-biochemical-constituents-of-selected-plants-in-the-national-capital-region-of-delhi-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2381.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">305</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">6</span> Realizing the Full Potential of Islamic Banking System: Proposed Suitable Legal Framework for Islamic Banking System in Tanzania</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maulana%20Ayoub%20Ali">Maulana Ayoub Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Kulshrestha"> Pradeep Kulshrestha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Laws of any given secular state have a huge contribution in the growth of the Islamic banking system because the system uses conventional laws to govern its activities. Therefore, the former should be ready to accommodate the latter in order to make the Islamic banking system work properly without affecting the current conventional banking system and therefore without affecting its system. Islamic financial rules have been practiced since the birth of Islam. Following the recent world economic challenges in the financial sector, a quick rebirth of the contemporary Islamic ethical banking system took place. The coming of the Islamic banking system is due to various reasons including but not limited to the failure of the interest based economy in solving financial problems around the globe. Therefore, the Islamic banking system has been adopted as an alternative banking system in order to recover the highly damaged global financial sector. But the Islamic banking system has been facing a number of challenges which hinder its smooth operation in different parts of the world. It has not been the aim of this paper to discuss other challenges rather than the legal ones, but the same was partly discussed when it was justified that it was proper to do so. Generally, there are so many things which have been discovered in the course of writing this paper. The most important part is the issue of the regulatory and supervisory framework for the Islamic banking system in Tanzania and in other nations is considered to be a crucial part for the development of the Islamic banking industry. This paper analyses what has been observed in the study on that area and recommends for necessary actions to be taken on board in a bid to make Islamic banking system reach its climax of serving the larger community by providing ethical, equitable, affordable, interest-free and society cantered banking system around the globe. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Islamic%20banking" title="Islamic banking">Islamic banking</a>, <a href="https://publications.waset.org/abstracts/search?q=interest%20free%20banking" title=" interest free banking"> interest free banking</a>, <a href="https://publications.waset.org/abstracts/search?q=ethical%20banking" title=" ethical banking"> ethical banking</a>, <a href="https://publications.waset.org/abstracts/search?q=legal%20framework" title=" legal framework "> legal framework </a> </p> <a href="https://publications.waset.org/abstracts/105751/realizing-the-full-potential-of-islamic-banking-system-proposed-suitable-legal-framework-for-islamic-banking-system-in-tanzania" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105751.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">149</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">5</span> A Study of Impact of Changing Fuel Practices on Organic Carbon and Elemental Carbon Levels in Indoor Air in Two States of India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kopal%20Verma">Kopal Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Umesh%20C.%20Kulshrestha"> Umesh C. Kulshrestha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> India is a rural major country and majority of rural population is dependent on burning of biomass as fuel for domestic cooking on traditional stoves (Chullahs) and heating purposes. This results into indoor air pollution and ultimately affects health of the residents. Still, a very small fraction of rural population has been benefitted by the facilities of Liquefied Petroleum Gas (LPG) cylinders. Different regions of country follow different methods and use different type of biomass for cooking. So in order to study the differences in cooking practices and resulting indoor air pollution, this study was carried out in two rural areas of India viz. Budhwada, Madhya Pradesh and Baggi, Himachal Pradesh. Both the regions have significant differences in terms of topography, culture and daily practices. Budhwada lies in plain area and Baggi belongs to hilly terrain. The study of carbonaceous aerosols was carried out in four different houses of each village. The residents were asked to bring slight change in their practices by cooking only with biomass (BB) then with a mix of biomass and LPG (BL) and then finally only with LPG (LP). It was found that in BB, average values of organic carbon (OC) and elemental carbon (EC) were 28% and 44% lower in Budhwada than in Baggi whereas a reverse trend was found where OC and EC was respectively more by 56% and 26% with BL and by 54% and 29% with LP in Budhwada than in Baggi. Although, a significant reduction was found both in Budhwada (OC by 49% and EC by 34%) as well as in Baggi (OC by 84% and EC by 73%) when cooking was shifted from BB to LP. The OC/EC ratio was much higher for Budhwada (BB=9.9; BL=2.5; LP=6.1) than for Baggi (BB=1.7; BL=1.6; LP=1.3). The correlation in OC and EC was found to be excellent in Baggi (r²=0.93) and relatively poor in Budhwada (r²=0.65). A questionnaire filled by the residents suggested that they agree to the health benefits of using LPG over biomass burning but the challenges of supply of LPG and changing the prevailing tradition of cooking on Chullah are making it difficult for them to make this shift. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomass%20burning" title="biomass burning">biomass burning</a>, <a href="https://publications.waset.org/abstracts/search?q=elemental%20carbon" title=" elemental carbon"> elemental carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=liquefied%20petroluem%20gas" title=" liquefied petroluem gas"> liquefied petroluem gas</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20carbon" title=" organic carbon"> organic carbon</a> </p> <a href="https://publications.waset.org/abstracts/99818/a-study-of-impact-of-changing-fuel-practices-on-organic-carbon-and-elemental-carbon-levels-in-indoor-air-in-two-states-of-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/99818.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">191</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">4</span> An Overview of the Islamic Banking Development in the United Kingdom, Malaysia, Saudi Arabia, Iran, Nigeria, Kenya and Uganda</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Kulshrestha">Pradeep Kulshrestha</a>, <a href="https://publications.waset.org/abstracts/search?q=Maulana%20Ayoub%20Ali"> Maulana Ayoub Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The level of penetration of Islamic banking products and services has recorded a reasonable growth at an exponential rate in many parts of the world. There are many factors which have contributed to this growth including, but not limited to the rapid growth of number of Muslims who are uncomfortable with the conventional ways of banking, interest and higher interest rates scheduled by conventional banks and financial institutions as well as the financial inclusion campaign conducted in many countries. The system is facing legal challenges which open the research fdoor for practitioners and academicians for the sake of finding out solutions to those challenges. This paper tries to investigate the development of the Islamic banking system in the United Kingdom (UK), Saudi Arabia, Malaysia, Iran, Kenya, Nigeria and Uganda in order to understand the modalities which have been employed to run an Islamic banking system in the aforementioned countries. The methodology which has been employed in doing this research paper is Doctrinal, of which legislations, policies and other legal tools have been carefully studied and analysed. Again, papers from academic journals, books and financial reports have been deeply analysed for the purpose of enriching the paper and come up with a tangible results. The paper found that in Asia, Malaysia has created the smoothest legal platform for Islamic banking system to work properly in the country. The United Kingdom has tried harder to smooth the banking system without affecting the conventional banking methods and without favouring the operations of Islamic banks. It also tries harder to make UK as an Islamic banking and finance hub in Europe. The entire banking system in Iran is Islamic, while Nigeria has undergone several legal reforms to suit Islamic banking system in the country. Kenya and Uganda are at a different pace in making Islamic Banking system work alongside the conventional banking system.   <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shariah" title="shariah">shariah</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamic%20banking" title=" Islamic banking"> Islamic banking</a>, <a href="https://publications.waset.org/abstracts/search?q=law" title=" law"> law</a>, <a href="https://publications.waset.org/abstracts/search?q=alternative%20banking" title=" alternative banking"> alternative banking</a> </p> <a href="https://publications.waset.org/abstracts/105950/an-overview-of-the-islamic-banking-development-in-the-united-kingdom-malaysia-saudi-arabia-iran-nigeria-kenya-and-uganda" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105950.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">151</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">3</span> A Decade of Creating an Alternative Banking System in Tanzania: The Current State of Affairs of Islamic Banks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Kulshrestha">Pradeep Kulshrestha</a>, <a href="https://publications.waset.org/abstracts/search?q=Maulana%20Ayoub%20Ali"> Maulana Ayoub Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The concept of financial inclusion has been tabled in the whole world where practitioners, academicians, policy makers and economists are working hard to look for the best possible opportunities in order to enable the whole society to be in the banking cycle. The Islamic banking system is considered to be one of the said opportunities. Countries like the United Kingdom, United States of America, Malaysia, Saudi Arabia, the whole of the United Arab Emirates and many African countries have accommodated the aspect of Islamic banking in the conventional banking system as one of the financial inclusion strategies. This paper tries to analyse the current state of affairs of the Islamic Banking system in Tanzania in order to understand the improvement of the provision of Islamic banking products and services in the said country. The paper discusses the historical background of the banking system in Tanzania, the level of penetration of banking products and services and the coming of the Islamic banking system in the country. Furthermore, the paper discusses banking regulatory bodies, legal instruments governing banking operations as well as number of legal challenges facing Islamic banking operations in the country. Following a critical literature review, the paper discovered that there is no legal instrument which talks about the introduction and provision of Islamic banking system in Tanzania. Furthermore, the Islamic banking system was considered as a banking product which is absolutely incorrect because Islamic banking is considered to be as a banking system of its own. In addition to that, it has been discovered that lack of a proper regulatory system and legal instruments to harmonize the conventional and Islamic banking systems has resulted in the closure of one Islamic window in the country, which in the end affects the credibility of the newly introduced banking system. In its conclusive remarks, the paper suggests that Tanzania should work on all legal challenges affecting the smooth operations of the Islamic banking system. This can be in a way of adopting various Islamic banking legal models which are used in countries like Malaysia and others, or a borrowing legal harmonization process which has been adopted by the UK, Uganda, Nigeria and Kenya. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Islamic%20banking" title="Islamic banking">Islamic banking</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamic%20windows" title=" Islamic windows"> Islamic windows</a>, <a href="https://publications.waset.org/abstracts/search?q=regulations" title=" regulations"> regulations</a>, <a href="https://publications.waset.org/abstracts/search?q=banks" title=" banks"> banks</a> </p> <a href="https://publications.waset.org/abstracts/99318/a-decade-of-creating-an-alternative-banking-system-in-tanzania-the-current-state-of-affairs-of-islamic-banks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/99318.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">188</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">2</span> Control of Indoor Carbon through Soft Approaches in Himachal Pradesh, India</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kopal%20Verma">Kopal Verma</a>, <a href="https://publications.waset.org/abstracts/search?q=Umesh%20C.%20Kulshrestha"> Umesh C. Kulshrestha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mountainous regions are very crucial for a country because of their importance for weather, water supply, forests, and various other socio-economic benefits. But the increasing population and its demand for energy and infrastructure have contributed very high loadings of air pollution. Various activities such as cooking, heating, manufacturing, transport, etc. contribute various particulate and gaseous pollutants in the atmosphere. This study was focused upon indoor air pollution and was carried out in four rural households of the Baggi village located in the Hamirpur District of the Himachal Pradesh state. The residents of Baggi village use biomass as fuel for cooking on traditional stove (Chullah). The biomass types include wood (mainly Beul, Grewia Optiva), crop residue and dung cakes. This study aimed to determine the organic carbon (OC), elemental carbon (EC), major cations and anions in the indoor air of each household. During non-cooking hours, it was found that the indoor air contained OC and EC as low as 21µg/m³ and 17µg/m³ respectively. But during cooking hours (with biomass burning), the levels of OC and EC were raised significantly by 91.2% and 85.4% respectively. Then the residents were advised to switch over as per our soft approach options. In the first approach change, they were asked to prepare the meal partially on Chullah using biomass and partially with liquefied petroleum gas (LPG). By doing this change, a considerable reduction in OC (53.1%) and in EC (41.8%) was noticed. The second change of approach included the cooking of entire meal by using LPG. This resulted in the reduction of OC (84.1%) and EC (73.3%) as compared to the values obtained during cooking entirely with biomass. The carbonaceous aerosol levels were higher in the morning hours than in the evening hours because of more biomass burning activity in the morning. According to a general survey done with the residents, the study provided them an awareness about the air pollution and the harmful effects of biomass burning. Some of them correlated their ailments like weakened eyesight, fatigue and respiratory problems with indoor air pollution. This study demonstrated that by replacing biomass with clean fuel such as LPG, the indoor concentrations of EC and OC can be reduced substantially. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomass%20burning" title="biomass burning">biomass burning</a>, <a href="https://publications.waset.org/abstracts/search?q=carbonaceous%20aerosol" title=" carbonaceous aerosol"> carbonaceous aerosol</a>, <a href="https://publications.waset.org/abstracts/search?q=elemental%20carbon" title=" elemental carbon"> elemental carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20carbon" title=" organic carbon"> organic carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=LPG" title=" LPG"> LPG</a> </p> <a href="https://publications.waset.org/abstracts/99813/control-of-indoor-carbon-through-soft-approaches-in-himachal-pradesh-india" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/99813.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">118</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">1</span> Investigating the Atmospheric Phase Distribution of Inorganic Reactive Nitrogen Species along the Urban Transect of Indo Gangetic Plains</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reema%20Tiwari">Reema Tiwari</a>, <a href="https://publications.waset.org/abstracts/search?q=U.%20C.%20Kulshrestha"> U. C. Kulshrestha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> As a key regulator of atmospheric oxidative capacity and secondary aerosol formations, the signatures of reactive nitrogen (Nr) emissions are becoming increasingly evident in the cascade of air pollution, acidification, and eutrophication of the ecosystem. However, their accurate estimates in N budget remains limited by the photochemical conversion processes where occurrence of differential atmospheric residence time of gaseous (NOₓ, HNO₃, NH₃) and particulate (NO₃⁻, NH₄⁺) Nr species becomes imperative to their spatio temporal evolution on a synoptic scale. The present study attempts to quantify such interactions under tropical conditions when low anticyclonic winds become favorable to the advections from west during winters. For this purpose, a diurnal sampling was conducted using low volume sampler assembly where ambient concentrations of Nr trace gases along with their ionic fractions in the aerosol samples were determined with UV-spectrophotometer and ion chromatography respectively. The results showed a spatial gradient of the gaseous precursors with a much pronounced inter site variability (p < 0.05) than their particulate fractions. Such observations were confirmed for their limited photochemical conversions where less than 1 ratios of day and night measurements (D/N) for the different Nr fractions suggested an influence of boundary layer dynamics at the background site. These phase conversion processes were further corroborated with the molar ratios of NOₓ/NOᵧ and NH₃/NHₓ where incomplete titrations of NOₓ and NH₃ emissions were observed irrespective of their diurnal phases along the sampling transect. Their calculations with equilibrium based approaches for an NH₃-HNO₃-NH₄NO₃ system, on the other hand, were characterized by delays in equilibrium attainment where plots of their below deliquescence Kₘ and Kₚ values with 1000/T confirmed the role of lower temperature ranges in NH₄NO₃ aerosol formation. These results would help us in not only resolving the changing atmospheric inputs of reduced (NH₃, NH₄⁺) and oxidized (NOₓ, HNO₃, NO₃⁻) Nr estimates but also in understanding the dependence of Nr mixing ratios on their local meteorological conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diurnal%20ratios" title="diurnal ratios">diurnal ratios</a>, <a href="https://publications.waset.org/abstracts/search?q=gas-aerosol%20interactions" title=" gas-aerosol interactions"> gas-aerosol interactions</a>, <a href="https://publications.waset.org/abstracts/search?q=spatial%20gradient" title=" spatial gradient"> spatial gradient</a>, <a href="https://publications.waset.org/abstracts/search?q=thermodynamic%20equilibrium" title=" thermodynamic equilibrium"> thermodynamic equilibrium</a> </p> <a href="https://publications.waset.org/abstracts/101393/investigating-the-atmospheric-phase-distribution-of-inorganic-reactive-nitrogen-species-along-the-urban-transect-of-indo-gangetic-plains" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101393.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">128</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th 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