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class='name'>English</span></div></a><a href='https://aqicn.org/sensor/cn/' class='lang-zh-CN'><div class='item'><div class='flag sprite-isprt-web-cn'></div><span class='name'>Chinese <span>- 简体中文</span></span></div></a><a href='https://aqicn.org/sensor/jp/' class='lang-ja'><div class='item'><div class='flag sprite-isprt-web-jp'></div><span class='name'>Japanese <span>- 日本</span></span></div></a><a href='https://aqicn.org/sensor/es/' class='lang-es'><div class='item'><div class='flag sprite-isprt-web-es'></div><span class='name'>Spanish <span>- español</span></span></div></a><a href='https://aqicn.org/sensor/kr/' class='lang-ko'><div class='item'><div class='flag sprite-isprt-web-kr'></div><span class='name'>Korean <span>- 한국의</span></span></div></a><a href='https://aqicn.org/sensor/ru/' class='lang-ru'><div class='item'><div class='flag sprite-isprt-web-ru'></div><span class='name'>Russian <span>- русский</span></span></div></a><a href='https://aqicn.org/sensor/hk/' 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sprite-isprt-web-vn'></div><span class='name'>Vietnamese <span>- Tiếng Việt</span></span></div></a><a href='https://aqicn.org/sensor/it/' class='lang-it'><div class='item'><div class='flag sprite-isprt-web-it'>🇮🇹</div><span class='name'>Italian <span>- Italiano</span></span></div></a><a href='https://aqicn.org/sensor/id/' class='lang-id'><div class='item'><div class='flag sprite-isprt-web-id'>🇮🇩</div><span class='name'>Indonesian <span>- bahasa Indonesia</span></span></div></a><a href='https://aqicn.org/sensor/nl/' class='lang-nl'><div class='item'><div class='flag sprite-isprt-web-nl'>🇳🇱</div><span class='name'>Dutch <span>- Nederlands</span></span></div></a><a href='https://aqicn.org/sensor/fa/' class='lang-fa'><div class='item'><div class='flag sprite-isprt-web-ir'>🇮🇷</div><span class='name'>Persian <span>- فارسی</span></span></div></a><a href='https://aqicn.org/sensor/th/' class='lang-th'><div class='item'><div class='flag sprite-isprt-web-th'>🇹🇭</div><span class='name'>Thai 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font-size: 150%; display: table-cell; vertical-align: middle; -webkit-transform: rotate(325deg); -moz-transform: rotate(325deg); -o-transform: rotate(325deg); writing-mode: lr-tb; text-shadow: 1px 1px 3px white; } </style> <br> <script src='/jscripts/moment/bundle.min.js?_=20200103.150752&type=script'></script><script src='/jscripts/d3/d3.min.js?_=20190418.093123&type=script'></script><script src='/air/view/sensor/js/sensolib.js?_=20200517.131233&type=script'></script><script src='/air/view/sensor/js/sensor-bundle.min.js?_=20220515.202405&type=script'></script><link href='/air/view/sensor/js/sensor-bundle.min.css?_=20190418.093129&type=css' rel='stylesheet'/><script src='https://aqicn.org/air-cache/jquery-3.7.1.min.js?_=20250116.195014' type='text/javascript'></script><script src='/jscripts/formantic-ui/dist/components/calendar.min.js?_=20191228.123631&type=script'></script><script src='/jscripts/formantic-ui/dist/semantic.min.js?_=20191228.123631&type=script'></script><link href='/jscripts/formantic-ui/dist/semantic.min.css?_=20191228.123631&type=css' rel='stylesheet'/> <h1>Nghiên cứu thiết bị và cảm biến giám sát chất lượng không khí</h1> <div style='padding-left:10px;float:right;max-width: 50%; width:180px;color:#888;font-size: 66%;text-align: center;'> <img style='width:100%' src='/air/view/products/images/gaia-logo-large.png'> </div> <p>Giám sát chất lượng không khí là một ngành khoa học nổi tiếng và được thành lập bắt đầu từ những năm 80. Vào thời điểm đó, công nghệ còn khá hạn chế và giải pháp dùng để định lượng ô nhiễm không khí phức tạp, cồng kềnh và thực sự tốn kém.</p> <div style='float:right;max-width: 50%; width:300px;color:#888;font-size: 66%;text-align: center;'> <img style='width:100%' src='/images/sensors/US7947503-Monitor-and-methods-for-characterizing-airborne-particulates.png'> Patent <a href='https://www.google.com/patents/US7947503'>US7947503</a>: Monitor and methods for characterizing airborne particulates </div> <p>May mắn thay, ngày nay, với những công nghệ hiện đại và mới nhất, các giải pháp được sử dụng để giám sát Chất lượng Không khí không chỉ trở nên chính xác hơn mà còn đo lường nhanh hơn. Các thiết bị đang trở nên nhỏ hơn và giá cả phải chăng hơn bao giờ hết. Ví dụ: các công nghệ mới như <i>Cân vi mô dao động phần tử côn</i> (<a href='https://www.qld.gov.au/environment/pollution/monitoring/air-pollution/oscillating-microbalance/'>TOEM</a>) mang lại những lợi thế đáng kể so với <i>Bộ theo dõi suy giảm Beta</i> truyền thống (<a href='https://www3.epa.gov/ttnamti1/files/2009conference/Hart.pdf'>BAM</a>)</p> <p>Gần đây hơn, các cảm biến có giá siêu phải chăng đang bắt đầu xuất hiện trên thị trường - nhiều trong số chúng liên quan đến xu hướng cảm biến <a href='https://en.wikipedia.org/wiki/Internet_of_things'>IOT</a> mọi thứ. Trong khi hầu hết chúng chỉ là mánh lới quảng cáo và chắc chắn là đồ chơi vô dụng, một số trong số chúng đang bắt đầu đạt được hiệu suất tương đương với màn hình chuyên nghiệp, với chi phí thấp hơn một trăm lần. Để đánh giá độ tin cậy của những cảm biến đó, <a>Phòng thí nghiệm cảm biến Trái đất</a> từ dự án Chỉ số chất lượng không khí thế giới đang và đã tiến hành nhiều nghiên cứu về Cảm biến chất lượng không khí và thí nghiệm dữ liệu trực tiếp trong nhiều năm.</p> <style type='text/css'> section { margin-top:20px; margin-bottom: 80px; } @media only screen and (max-width: 800px) { border-top: 1px solid #ccc; } @media only screen and (min-width: 800px) { section { padding-left: 20px; border-left: 3px solid #f8f8f8; } } </style><h2><p>Cảm biến hạt</p></h2><section> <p>Các cảm biến hạt có thể phát hiện lượng bụi trong không khí. Mặc dù thế hệ đầu tiên chỉ có thể phát hiện mức độ mờ đục, nhưng hầu hết các cảm biến gần đây hiện nay không chỉ có thể phát hiện PM<sub>2.5</sub> và PM<sub>10</sub> mà còn có thể phát hiện tới 7 kích thước hạt khác nhau (còn gọi là thùng).</p> <center><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/hpma115/"'><a href='/sensor/hpma115/'>HoneyWell HPMA 115<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>20USD</b> (130CN¥)<br></small><img src='/air/view/images/sensors/hpma115-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/pms5003-7003/"'><a href='/sensor/pms5003-7003/'>Plantower PMS 7003<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>20USD</b> (130CN¥)<br></small><img src='/air/view/images/sensors/pms7003-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/pms5003-7003/"'><a href='/sensor/pms5003-7003/'>Plantower PMS 5003<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>18USD</b> (120CN¥)<br></small><img src='/air/view/images/sensors/pms5003-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/pms3003/"'><a href='/sensor/pms3003/'>Plantower PMS 3003<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>14USD</b> (90CN¥)<br></small><img src='/air/view/images/sensors/pms3003-large.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/pms1003/"'><a href='/sensor/pms1003/'>Plantower PMS 1003<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>14USD</b> (90CN¥)<br></small><img src='/air/view/images/sensors/pms1003-large.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' ><div class='comming-soon-out'><div class='comming-soon'>Comming Soon</div></div>Plantower PMS A003<br><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>24USD</b> (160CN¥)<br></small><img src='/air/view/images/sensors/pms-a003-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/sds011/"'><a href='/sensor/sds011/'>Novafitness SD011<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>23USD</b> (150CN¥)<br></small><img src='/air/view/images/sensors/sds011.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' ><div class='comming-soon-out'><div class='comming-soon'>Comming Soon</div></div>Novafitness SD018<br><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>19USD</b> (128CN¥)<br></small><img src='/air/view/images/sensors/sds018-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/sds021/"'><a href='/sensor/sds021/'>Novafitness SD021<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>23USD</b> (155CN¥)<br></small><img src='/air/view/images/sensors/sds021.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/yt001/"'><a href='/sensor/yt001/'>Yuntong YT-001<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>20USD</b> (130CN¥)<br></small><img src='/air/view/images/sensors/yt-001.font.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' ><div class='comming-soon-out'><div class='comming-soon'>Comming Soon</div></div>Sharp DN7C3JA001<br><span class='sensor-box'><small style='line-height:1.1;'>Virtual Impactor for Sharp<br>GP2Y1051AU0F</small><br><b>20USD</b> (135CN¥)<br></small><img src='/air/view/images/sensors/Sharp-DN7C3JA001.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/shinyei/"'><a href='/sensor/shinyei/'>Shinyei PPD42NS<br></a><span class='sensor-box'><small style='line-height:1.1;'>LPO Optical PM sensor</small><br><b>5USD</b> (35CN¥)<br></small><img src='/air/view/images/sensors/Shinyei.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/shinyei/"'><a href='/sensor/shinyei/'>Samyoung DSM501<br></a><span class='sensor-box'><small style='line-height:1.1;'>LPO Optical PM sensor</small><br><b>4USD</b> (24CN¥)<br></small><img src='/air/view/images/sensors/Samyoung.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/shinyei-plusplus/"'><a href='/sensor/shinyei-plusplus/'>Modified Shinyei PPD42NS<br></a><span class='sensor-box'><small style='line-height:1.1;'>Analog Optical PM sensor</small><br><b>5USD</b> (35CN¥)<br></small><img src='/air/view/images/sensors/Shinyei-moded-small.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/beijing/sanlitun/"'><a href='/sensor/beijing/sanlitun/'>Dylos DC1100<br></a><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub><br>integrated monitor</small><br><b>300USD</b> (2000CN¥)<br></small><img src='/air/view/images/sensors/Dylos-DC1100pro.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' ><div class='comming-soon-out'><div class='comming-soon'>Comming Soon</div></div>Alphasense OPC-N2<br><span class='sensor-box'><small style='line-height:1.1;'>Laser based PM<sub>2.5</sub>/PM<sub>10</sub> sensor</small><br><b>500USD</b> (3333CN¥)<br></small><img src='/air/view/images/sensors/Alphasense-OPCN2.2.png' class='sensor-img'></div></div></center> </section><h2><p>Cảm biến khí</p></h2><section> <p>Ngược lại với cảm biến hạt, cảm biến khí có thể phát hiện và đếm loại <i>hạt</i> có trong không khí, chẳng hạn như Ozone (O<sub>3</sub>), Nitrogen Dioxide ( NO<sub>2</sub>), Lưu huỳnh điôxit (SO<sub>2</sub>), ...</p> <center><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/gas/"'><a href='/sensor/gas/'>MQ 131<br></a><span class='sensor-box'><small style='line-height:1.1;'>Ozone Electro-Chemical sensor</small><br><b>60CNY</b><br></small><img src='/air/view/images/sensors/ozone-mq131-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/gas/"'><a href='/sensor/gas/'>Specs<br></a><span class='sensor-box'><small style='line-height:1.1;'>Ozone Electro-Chemical sensor</small><br><b>57USD</b> (380 CN¥)<br></small><img src='/air/view/images/sensors/Ozone-SpecsSensor-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/gas/"'><a href='/sensor/gas/'>SGX MiCs 2614<br></a><span class='sensor-box'><small style='line-height:1.1;'>Ozone MEMS sensor</small><br><b>18USD</b> (120 CN¥)<br></small><img src='/air/view/images/sensors/ozone-mics-2614.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/gas/"'><a href='/sensor/gas/'>SGX MiCs 2714<br></a><span class='sensor-box'><small style='line-height:1.1;'>NO<sub>2</sub> MEMS sensor</small><br><b>23USD</b> (150 CN¥)<br></small><img src='/air/view/images/sensors/ozone-mics-2614.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/gas/"'><a href='/sensor/gas/'>Alphasense NO2 B43F<br></a><span class='sensor-box'><small style='line-height:1.1;'>NO<sub>2</sub> Electro-Chemical sensor</small><br><b>90USD</b> (600 CN¥)<br></small><img src='/air/view/images/sensors/alphasense-no2-a1-front.png' class='sensor-img'></div></div><div class='sensor-block-outer'><div class='sensor-block' onclick='window.location="/sensor/gas/"'><a href='/sensor/gas/'>MQ 9<br></a><span class='sensor-box'><small style='line-height:1.1;'>Carbon Monoxyde Electro-Chemical sensor</small><br><b>5CNY</b><br></small><img src='/air/view/images/sensors/ozone-mq131-front.png' class='sensor-img'></div></div></center> </section><h2><p>Ghi chú</p></h2><section> <ul> <li>Lưu ý1: Tỷ giá quy đổi USD/CNY dựa trên 1 CNY = 0,15 USD. Giá được tính trên giá mua trực tiếp từ nhà cung cấp mà không tính phí vận chuyển.</li> <li>Lưu ý2: Màn hình Dylos không thực sự thuộc danh mục cảm biến PM vì nó là thiết bị giám sát độc lập và tích hợp hoàn toàn, đắt hơn nhiều so với bất kỳ cảm biến nào khác, nhưng nó được liệt kê ở đây vì lý do lịch sử.</li> <li>Lưu ý 3: Alpha Sense OPCN2 đắt tiền và cái giá bạn phải trả là cho việc hiệu chuẩn có thể theo dõi (được thực hiện bằng cách sử dụng Hạt cao su hình cầu Polystyrene). Mặt khác, về mặt công nghệ, nó không bao gồm bất cứ thứ gì tốt hơn những gì mà cảm biến 20 USD có thể làm được, ngoại trừ IC.</li> <li>Lưu ý4: Có nhiều bài báo khoa học về cảm biến giá rẻ. Hãy xem tài liệu từ NCAS và WACL để có thông tin tổng quan ngắn gọn và đầy đủ về <a target=_ href='http://www.londonair.org.uk/london/asp/LAQNSeminar/pdf/June2016/Pete_Edwards_low_cost_chemical_sensor.pdf'></a> về việc đánh giá các cảm biến hóa học chi phí thấp để đo ô nhiễm không khí.</li> </ul> </section><h2><p>Đo lường so sánh PM<sub>2,5</sub> trong 5 ngày qua</p></h2><section> The graph "BAM PM<sub>2.5</sub>" is the reference measurement from a professional <a href='https://en.wikipedia.org/wiki/Beta_attenuation_monitoring'>BAM</a> monitor. A <a href='https://en.wikipedia.org/wiki/Local_regression'>loess</a> smoothing is applied to all the other graphs in order to minimize the noise. You can move your mouse over the graph labels to see the actual output vs. the averaged values. <br> <br> <div style='width:99%;' id='sensorviewwidth'> <div id='gpm25'> </div> <br> <br> <div id='sensor-realtime-update-status'></div> <br> <br> </div> <style type="text/css"> a.sensorlink { color: white; text-decoration: none; } a.sensorlink:link { text-decoration: none; } a.sensorlink:visited { text-decoration: none; } a.sensorlink:hover { text-decoration: underline; } </style> <script> function initGraphs() { try { var ndays = 5; var avg = null; var avg1 = null; var circleSize = 0; var height = 300; var sensors = [{ id: "dylos-outdoor-pm25", name: "Dylos", color: "orange", url: "/sensor/beijing/sanlitun/", pol: "pm25" }, { id: "china.beijing.sanlitun.pms1003.outdoor.x1", pol: "pm2.5-mg", name: "PMS 1003", color: "purple", url: "/sensor/pms1003/" }, { id: "china.beijing.sanlitun.pms3003.outdoor.x1", pol: "pm2.5-mg", name: "PMS 3003", color: "purple", url: "/sensor/pms3003/" }, { id: "china.beijing.sanlitun.pms5003.outdoor.x1", pol: "pm2.5-mg", name: "PMS 5003", color: "grey", url: "/sensor/pms5003-7003/" }, { id: "china.beijing.sanlitun.pms7003.outdoor.x1", pol: "pm2.5-mg", name: "PMS 7003", color: "violet", url: "/sensor/pms5003-7003/" }, { id: "china.beijing.sanlitun.sds011.outdoor.x1", pol: "pm2.5-mg", name: "SDS 011 (new)", color: "teal", url: "/sensor/sds011/", div: 10000 }, { id: "china.beijing.sanlitun.sds011.outdoor.x2", pol: "pm2.5-mg", name: "SDS 011 (old)", color: "blue", url: "/sensor/sds011/", div: 10000 }, { id: "china.beijing.sanlitun.sds021.outdoor.x1", pol: "pm2.5-mg", name: "SDS 021", color: "pink", url: "/sensor/sds021/", div: 10000 }, { id: "china.beijing.sanlitun.hpma115so.outdoor.x1", pol: "pm2.5-mg", color: "orange", name: "HPMA 115SO", url: "/sensor/hpma115/" }, { id: "bam-pm25", name: "BAM PM2.5", color: "red", url: "/city/beijing/chaoyangnongzhanguan/" }, /* {id:"shinyei-outdoor-pm25",name:"Shinyei",color:"grey",url:"/sensor/shinyei/"}, {id:"pms5003-outdoor-pm25",name:"PMS 5003",color:"violet",url:"/sensor/pms5003/"}, {id:"yt001-outdoor-pm25",name:"YT 001",color:"grey",url:"/sensor/yt001/"}, {id:"bam-pm25",name:"BAM (reference value)",color:"red"} */ ]; showSensors(d3.select("#gpm25"), sensors, { ndays: ndays, autoscale: true }); showSensorStatus(d3.select("#sensor-realtime-update-status"), sensors, ["pm25"]) } catch (e) { $('#status').html("Error: " + e); } } function initPage() { initGraphs(); } </script></section> <center><br>-<svg xmlns="http://www.w3.org/2000/svg" width="28" height="28" version="1" viewBox="0 0 26 26" enable-background="new 0 0 26 26"> <path d="M 15.65625 -0.03125 C 14.280846 -0.03760636 12.828752 0.09254274 11.3125 0.40625 C 8.28651 1.0323169 5.7746616 2.1709106 3.96875 3.59375 C 2.3885774 4.8387345 1.3097647 6.3321654 1.0625 7.96875 A 1.0001 1.0001 0 0 0 1 8.40625 C 1 8.4709766 0.99753847 8.5296394 1 8.59375 C 0.99939321 8.6245955 1 8.6565744 1 8.6875 C 1.0067678 8.8049913 1.0164368 8.9159604 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of all air quality sensors, check the <a class='citysync' href='/sensor/'>Sensor Overview</a> page</div><br><div style='height:1px;background-color:#aaaaaa;width:220px;margin-top:5px;'></div><div id="disqus_thread_title" onclick="showDisqus();" style="margin:20px 5px;cursor:pointer;color:#888;"><svg fill="#888888" style="float:left;margin-right:5px;" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 511.999 511.999" width=32 heigh=32 xml:space="preserve"> <path d="M372.29,50.758H28.831C12.933,50.758,0,63.691,0,79.588v206.056c0,15.897,12.933,28.831,28.831,28.831h22.271v76.71 c0,4.884,2.942,9.289,7.456,11.159c1.494,0.62,3.064,0.92,4.62,0.92c3.144,0,6.232-1.228,8.543-3.538l85.251-85.25h17.104 c6.671,0,12.078-5.407,12.078-12.078c0-6.672-5.409-12.079-12.078-12.079c0,0-22.69,0.016-22.927,0.04 c-2.812,0.191-5.572,1.349-7.722,3.498l-68.169,68.169c0,0-0.021-60.392-0.06-60.705c-0.545-6.166-5.717-11.002-12.024-11.002 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d="M362.964,285.53c-6.667,0-12.078,5.411-12.078,12.078c0,6.667,5.411,12.078,12.078,12.078 c6.668,0,12.078-5.411,12.078-12.078C375.042,290.941,369.631,285.53,362.964,285.53z"/> <path d="M310.472,130.611c0,0-219.822,0-219.822,0c-6.67,0-12.078,5.407-12.078,12.078s5.409,12.078,12.078,12.078h219.822 c6.67,0,12.078-5.407,12.078-12.078S317.142,130.611,310.472,130.611z"/> <path d="M174.075,210.465H90.65c-6.67,0-12.078,5.407-12.078,12.078c0,6.671,5.409,12.078,12.078,12.078h83.425 c6.671,0,12.078-5.407,12.078-12.078S180.745,210.465,174.075,210.465z"/> <path d="M306.837,285.53c-6.666,0-12.078,5.411-12.078,12.078c0,6.667,5.412,12.078,12.078,12.078 c6.668,0,12.078-5.411,12.078-12.078C318.915,290.941,313.505,285.53,306.837,285.53z"/> <path d="M419.079,285.53c-6.667,0-12.078,5.411-12.078,12.078c0,6.667,5.411,12.078,12.078,12.078 c6.668,0,12.078-5.411,12.078-12.078C431.157,290.941,425.746,285.53,419.079,285.53z"/> </svg> Read or publish comments (they rely on Disqus)</div><div id="disqus_thread" ></div> <script type="text/javascript"> function showDisqus() { document.getElementById("disqus_thread_title").style.display="none"; var disqus_identifier = "httpaqicnorgsensor"; var disqus_url = "http:\/\/aqicn.org\/sensor\/"; var disqus_title = "Sensing the Air Quality: Research on Air Quality Sensors"; var dsq = document.createElement("script"); dsq.type = "text/javascript"; dsq.async = true; dsq.src = "//aqicn.disqus.com/embed.js"; (document.getElementsByTagName("head")[0] || document.getElementsByTagName("body")[0]).appendChild(dsq); }; </script> </div></div></div><a name="infoaqi"></a><div class='h1section h1section-divider'><div class='h1section-rainbow'><div></div><div></div><div></div><div></div><div></div></div><h1><div id='h1header3' style='padding:2px;font-family:"Noto Serif",Cambria,"Palatino Linotype","Book Antiqua","URW Palladio L",serif;;'>Về phương pháp đo chất lượng không khí và mức độ ô nhiễm:</div></h1></div><script type='text/javascript'> ; if (!isMobileUA) { fitLine('#h1header3',.88,{maxfs:45}); }; </script><div class='whitebody' style='font-family:"Noto Serif",Cambria,"Palatino Linotype","Book Antiqua","URW Palladio L",serif;'><div class='section-outer'><div class='section-content' > <center>Về các thang đo chất lượng không khí<br> <br> <style type="text/css"> #legend-full table.infoaqitable { line-height: 1.5; background-color: white; max-width: 1000px; width: 95%; margin: 0px; border: 1px solid black; cursor: pointer; } #legend-full table.infoaqitable td { padding: 5px; font-size: 15px; text-shadow: none; } #legend-full .aqiwtxt { color: #ffffff; } #legend-full .aqibtxt { color: #000000; } @media only screen and (max-width: 800px) { #legend-full table.infoaqitable { width: 98%; } } @media only screen and (max-width: 800px) { #legend-full table.infoaqitable td { display: block; } #legend-full table.infoaqitable td:nth-child(1) { display: inline-block; font-size: 1.2em; } #legend-full table.infoaqitable td:nth-child(2) { display: inline-block; font-weight: 800; font-size: 1.2em; } } </style> <div id='legend-full' onclick='window.location="/scale/"'> <table class="infoaqitable"> <thead> <tr> <td>- <td >Giá trị chỉ số chất lượng không khí (AQI)<td>Mức độ ảnh hưởng sức khỏe</td></tr> </thead> <tr style="background-color:#009966;"> <td class='aqiwtxt' nowrap="true">0 - 50</td> <td class='aqiwtxt'>Tốt</td> <td class='aqiwtxt'>Chất lượng không khí được xem là đạt tiêu chuẩn, và ô nhiễm không khí coi như không hoặc gây rất ít nguy hiểm</td></tr> <tr style="background-color:#ffde33" class='aqibtxt'> <td class='aqibtxt' nowrap="true">51 -100</td> <td class='aqibtxt'>Trung bình</td> <td class='aqibtxt'>Chất lượng không khí ở mức chấp nhận được; tuy nhiên, một số chất gây ô nhiễm có thể ảnh hưởng tới sức khỏe của một số ít những người nhạy cảm với không khí bị ô nhiễm.</td></tr> <tr style="background-color:#ff9933;"> <td class='aqibtxt' nowrap="true">101-150</td> <td class='aqibtxt'>Không tốt cho người nhạy cảm</td> <td class='aqibtxt'>Nhóm người nhạy cảm có thể chịu ảnh hưởng sức khỏe. Số đông không có nguy cơ bị tác động.</td></tr> <tr style="background-color:#cc0033;"> <td class='aqiwtxt' nowrap="true">151-200</td> <td class='aqiwtxt'>Có hại cho sức khỏe</td> <td class='aqiwtxt'>Mỗi người đều có thể sẽ chịu tác động đến sức khỏe; nhóm người nhạy cảm có thể bị ảnh hưởng nghiêm trọng hơn.</td></tr> <tr style="background-color:#660099;"> <td class='aqiwtxt' nowrap="true">201-300</td> <td class='aqiwtxt'>Rất có hại cho sức khỏe</td> <td class='aqiwtxt'>Cảnh báo nguy hại sức khỏe nghiêm trọng. Đa số mọi người đều bị ảnh hưởng.</td></tr> <tr style="background-color:#7e0023;"> <td class='aqiwtxt' nowrap="true">300+</td> <td class='aqiwtxt'>Nguy hiểm</td> <td class='aqiwtxt'>Cảnh báo sức khỏe: tất cả mọi người có thể chịu tác động nghiêm trọng đến sức khỏe</td></tr> </table> </div><br>Để biết thêm về ô nhiễm và chất lượng không khí , xem <a href='http://en.wikipedia.org/wiki/Air_quality'> wikipedia chất lượng không khí</a> đang đề hoặc <a href='http://www.airnow.gov/index.cfm?action=aqibasics.aqi'> hướng dẫn về chất lượng không khí và sức khỏe của bạn </a>.<br><br>Để biết những lời khuyên về sức khỏe rất hữu ích của bác sĩ y khoa Richard Saint Cyr ở Bắc Kinh, xem <a href='http://www.myhealthbeijing.com/'> www.myhealthbeijing.com </a> blog.<br><br></center></div></div></div> <center> <br>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-0281575029452656" data-ad-slot="2455076269" data-ad-format="auto"></ins> <script>(adsbygoogle = window.adsbygoogle || []).push({});</script> <style type='text/css'> .usage-notice { line-height:1.5; max-width:95%; width:1000px; margin-top:10px; padding:5px; font-size: 15px; background-color:#ffffff; text-shadow: 1px 1px 1px white; -webkit-box-shadow: 1px 1px 8px -3px rgba(0,0,0,0.3); } </style> <div class="textshadowwhite usage-notice" style=''> <b>Thông báo sử dụng</b>: Tất cả dữ liệu chất lượng không khí không được xác thực tại thời điểm công bố. Nhằm đảm bảo chất lượng, những dữ liệu này có thể được cập nhập mà không cần thông báo trước. Nhóm dự án Chỉ số chất lượng không khí toàn cầu đã thực hiện tất cả yêu cầu cần thiết trong việc biên soạn các thông tin này. 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