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href='/jscripts/formantic-ui/dist/semantic.min.css?_=20191228.123631&type=css' rel='stylesheet'/> <h1>空气质量监测装置及传感器研究</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>空气质量监测是众所周知且成熟的科学，始于 80 年代。当时的技术相当有限，用于量化空气污染的解决方案复杂、繁琐且非常昂贵。</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>幸运的是，如今，借助最新和现代的技术，用于空气质量监测的解决方案不仅变得更加精确，而且测量速度也更快。设备变得越来越小，成本也比以往任何时候都便宜得多。例如，<i>锥形元件振荡微量天平</i>等新技术 (<a href='https://www.qld.gov.au/environment/pollution/monitoring/air-pollution/oscillating-microbalance/'>TOEM</a>）比传统的 <i>Beta 衰减监视器</i> (<a href='https://www3.epa.gov/ttnamti1/files/2009conference/Hart.pdf'>砰</a>）</p> <p>最近，超实惠的传感器开始出现在市场上 - 其中许多与<a href='https://en.wikipedia.org/wiki/Internet_of_things'>物联网</a>传感趋势相关一切。虽然它们中的大多数纯粹是噱头，因此绝对是无用的玩具，但其中一些已经开始实现与专业显示器相当的性能，而成本却低一百倍。为了评估这些传感器的可靠性，世界空气质量指数项目的<a>地球传感实验室</a>多年来一直在进行许多空气质量传感器研究和实时数据实验。</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>粒子传感器</p></h2><section> <p>颗粒传感器可以检测空气中的灰尘量。虽然第一代只能检测不透明度的量，但最新的传感器现在不仅可以检测 PM<sub>2.5</sub> 和 PM<sub>10</sub>，还可以检测多达 7 种不同的颗粒尺寸（又名垃圾箱）。</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>气体传感器</p></h2><section> <p>与颗粒传感器相反，气体传感器可以检测和计算空气中存在的<i>颗粒</i>类型，例如臭氧 (O<sub>3</sub>)、二氧化氮 ( NO<sub>2</sub>)、二氧化硫 (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>笔记</p></h2><section> <ul> <li>注1：美元/人民币汇率按1人民币=0.15美元计算。价格基于直接从供应商处购买，不含运费。</li> <li>注2：Dylos 监测仪并不真正属于 PM 传感器类别，因为它是一个完全集成的独立监测设备，比任何其他传感器贵得多，但出于历史原因将其列在这里。</li> <li>注 3：Alpha Sense OPCN2 价格昂贵，您支付的价格是可追溯校准（使用聚苯乙烯球形乳胶颗粒完成）。除此之外，从技术角度来看，除了 IC 之外，它并没有比 20 美元的传感器更好的功能。</li> <li>注4：关于低成本传感器的科学文章有很多。请参阅 NCAS 和 WACL 的一篇精彩而简短的<a target=_ href='http://www.londonair.org.uk/london/asp/LAQNSeminar/pdf/June2016/Pete_Edwards_low_cost_chemical_sensor.pdf'>概述</a> 用于空气污染测量的低成本化学传感器的评估。</li> </ul> </section><h2><p>过去 5 天 PM<sub>2.5</sub> 比较测量</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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18.75 4.15625 C 17.952461 3.8495042 16.99958 3.6953943 15.96875 3.65625 z M 9.15625 17.59375 A 1.0001 1.0001 0 0 0 8.5625 19.25 C 8.5625 19.25 11.033033 22.015963 15.53125 21.90625 A 1.0004882 1.0004882 0 1 0 15.46875 19.90625 C 11.766967 19.996537 10.0625 17.9375 10.0625 17.9375 A 1.0001 1.0001 0 0 0 9.15625 17.59375 z M 8.125 20.1875 A 1.0001 1.0001 0 0 0 7.40625 21.65625 C 7.40625 21.65625 8.6869767 23.974979 11.65625 24.09375 A 1.001098 1.001098 0 0 0 11.75 22.09375 C 9.7192733 22.012521 9.1875 20.75 9.1875 20.75 A 1.0001 1.0001 0 0 0 8.21875 20.1875 A 1.0001 1.0001 0 0 0 8.125 20.1875 z M 7.59375 23.0625 A 1.0001 1.0001 0 0 0 7.4375 23.09375 A 1.0001 1.0001 0 0 0 6.9375 23.34375 C 6.9375 23.34375 6.19375 24 5.09375 24 A 1.0001 1.0001 0 1 0 5.09375 26 C 6.99375 26 8.28125 24.84375 8.28125 24.84375 A 1.0001 1.0001 0 0 0 7.59375 23.0625 z" color="#000" ></path> </svg>-<br><br></center><div style='border:1px solid #ccc;text-align:center;padding:8px;background-color:#eee;'>For the list 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;;'>关于空气质量与空气污染指数</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>本网站采用的污染指数和颜色与EPA是完全相同的。 EPA的指数可以从<a href='http://zh.wikipedia.org/wiki/%E7%A9%BA%E6%B0%94%E8%B4%A8%E9%87%8F%E6%8C%87%E6%95%B0>维基百科</a>和<a href='http://www.airnow.gov/index.cfm?action=aqibasics.aqi'> AirNow</a>上查到<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"> <tbody><tr> <td style="text-align:center;">空气质量指数</td> <td style="text-align:center;">空气质量指数级别（状况）及表示颜色</td> <td>对健康影响情况</td> <td>建议采取的措施</td> </tr> <tr style="background-color:#009966;color:white"><td nowrap="true">0 - 50</td> <td style="text-align:center;">一级（优）</td> <td>空气质量令人满意，基本无空气污染</td> <td>各类人群可正常活动</td> </tr> <tr style="background-color:#ffde33"><td nowrap="true">51 -100</td> <td style="text-align:center;">二级（良）</td> <td>空气质量可接受，但某些污染物可能对极少数异常敏感人群健康有较弱影响</td> <td>极少数异常敏感人群应减少户外活动</td> </tr> <tr style="background-color:#ff9933;color:white"><td nowrap="true">101-150</td> <td style="text-align:center;">三级（轻度污染）</td> <td>易感人群症状有轻度加剧，健康人群出现刺激症状</td> <td>儿童、老年人及心脏病、呼吸系统疾病患者应减少长时间、高强度的户外锻炼</td> </tr> <tr style="background-color:#cc0033;color:white"><td nowrap="true">151-200</td> <td style="text-align:center;color:white">四级（中度污染）</td> <td>进一步加剧易感人群症状，可能对健康人群心脏、呼吸系统有影响</td> <td>儿童、老年人及心脏病、呼吸系统疾病患者避免长时间、高强度的户外锻炼，一般人群适量减少户外运动</td> </tr> <tr style="background-color:#660099;color:white"><td nowrap="true">201-300</td> <td style="text-align:center;color:white">五级（重度污染）</td> <td>心脏病和肺病患者症状显著加剧，运动耐受力降低，健康人群普遍出现症状</td> <td>儿童、老年人及心脏病、肺病患者应停留在室内，停止户外运动，一般人群减少户外运动</td> </tr> <tr style="background-color:#7e0023;color:white"><td nowrap="true">300+</td> <td style="text-align:center;color:white">六级（严重污染）</td> <td>健康人群运动耐受力降低，有明显强烈症状，提前出现某些疾病</td> <td>儿童、老年人和病人应停留在室内，避免体力消耗，一般人群避免户外活动</td> </tr> </tbody> </table> (参考详见<a href='http://zh.wikipedia.org/wiki/%E7%A9%BA%E6%B0%94%E8%B4%A8%E9%87%8F%E6%8C%87%E6%95%B0'> http://zh.wikipedia.org/wiki/空气质量指数</a>) <br> </div><br>如果你想了解更多有关空气质量与污染，详见<a href='http://en.wikipedia.org/wiki/Air_quality'>维基百科</a>或者<a href='http://www.airnow.gov/index.cfm?action=aqibasics.aqi'> AirNow</a><br><br>有关健康建议详见北京的Richard Saint Cyr MD医生的博客：<a href='http://www.myhealthbeijing.com/'>www.myhealthbeijing.com</a><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>注意事项</b>: 所有空气质量数据在发布时均未经验证，并且为了保证数据质量，这些数据可能随时被修改，恕不另行通知。 <a href='https://aqicn.org'>世界空气质量指数</a>项目在编制此信息的内容时已经运用了所有合理的技能和谨慎，在任何情况下<a href =“https://aqicn.org“>世界空气质量指数</a>项目团队或其代理人将不会为由于提供此数据而直接或间接引起的伤害、合同损失、侵权及其他任何损失负责。</div> <br> <br> 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href='/faq/2015-03-15/air-quality-nowcast-a-beginners-guide/cn/'>空气质量指数计算</a></li> <li><a href='/forecast/cn/'>空气质量预报</a></li> <li><a href='/products/cn/'>空气质量产品（口罩、监测仪……）</a></li> <li><a href='/api/cn/'>API（应用程序编程接口）</a></li> <li><a href='/data-platform/cn/'>历史数据平台</a></li> </div> <div class='footercolumn2 footercolumn'> <h3>Credits</h3> <br> <li><a href='/sources/cn/'>世界上所有的 EPA 在维护、测量和向世界公民提供空气质量信息方面所做的出色工作</a></li> <li><a href='http://www.maxmind.com' target=_>该产品包括 MaxMind 创建的 GeoLite2 数据，可从 maxmind.com 获取。</a> <li><a href='http://geonames.org' target=_>该产品包括 GeoNames 城市信息，可从 geonames.org 获取。</a> <li><a href="http://openweathermap.org/" target="__s">开放式天气地图，结合qweather™改进算法</a> <li><a href='http://wxqa.com' target="__s">公民天气观察员计划</a> via <a href='https://cwop.waqi.info' target="__s">cwop.waqi.info</a> <li><a href="http://atmosphere.copernicus.eu/" target="__s">包含修改后的哥白尼大气监测服务信息</a> <li><a href="https://www.flaticon.com/" target="__s" title="Flaticon">一些由 Freepik 制作的图标，来自 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