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class='sprite-isprt-web-ba flag-bs'>🇧🇦</div></a><a href='https://aqicn.org/forecast/hr/'><div title='Croatian' class='sprite-isprt-web-hr flag-hr'>🇭🇷</div></a><a href='https://aqicn.org/forecast/tr/'><div title='Turkish' class='sprite-isprt-web-tr flag-tr'>🇹🇷</div></a><a href='https://aqicn.org/forecast/uk/'><div title='Ukrainian' class='sprite-isprt-web-ua flag-uk'>🇺🇦</div></a><a href='https://aqicn.org/forecast/cs/'><div title='Czech' class='sprite-isprt-web-cz flag-cs'>🇨🇿</div></a><a href='https://aqicn.org/forecast/be/'><div title='Belarusian' class='sprite-isprt-web-by flag-be'>🇧🇾</div></a></div><div id='hdrlang-navigation'> <div id='hdrlang-navigation-inner' class='hdrlang-navigation'> <a href='https://aqicn.org/forecast/' class='lang-en'><div class='item'><div class='flag sprite-isprt-web-gb'></div><span class='name'>English</span></div></a><a href='https://aqicn.org/forecast/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/forecast/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/forecast/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/forecast/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/forecast/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/forecast/hk/' class='lang-zh-TW'><div class='item'><div class='flag sprite-isprt-web-hk'></div><span class='name'>Traditional Chinese <span>- 繁體中文</span></span></div></a><a href='https://aqicn.org/forecast/fr/' class='lang-fr'><div class='item'><div class='flag sprite-isprt-web-fr'></div><span class='name'>French <span>- Francais</span></span></div></a><a href='https://aqicn.org/forecast/pl/' class='lang-pl'><div class='item'><div class='flag sprite-isprt-web-pl'></div><span class='name'>Polish <span>- Polski</span></span></div></a><a href='https://aqicn.org/forecast/de/' class='lang-de'><div class='item'><div class='flag sprite-isprt-web-de'></div><span class='name'>German <span>- Deutsch</span></span></div></a><a href='https://aqicn.org/forecast/pt/' class='lang-pt'><div class='item'><div class='flag sprite-isprt-web-br'></div><span class='name'>Portuguese <span>- Português</span></span></div></a><a href='https://aqicn.org/forecast/vn/' class='lang-vi'><div class='item'><div class='flag sprite-isprt-web-vn'></div><span class='name'>Vietnamese <span>- Tiếng Việt</span></span></div></a><a href='https://aqicn.org/forecast/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/forecast/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/forecast/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/forecast/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/forecast/th/' class='lang-th'><div class='item'><div class='flag sprite-isprt-web-th'>🇹🇭</div><span class='name'>Thai <span>- ภาษาไทย</span></span></div></a><a href='https://aqicn.org/forecast/hu/' class='lang-hu'><div class='item'><div class='flag sprite-isprt-web-hu'>🇭🇺</div><span class='name'>Hungarian <span>- Magyar</span></span></div></a><a href='https://aqicn.org/forecast/el/' class='lang-el'><div class='item'><div class='flag sprite-isprt-web-gr'>🇬🇷</div><span class='name'>Greek <span>- Ελληνικά</span></span></div></a><a href='https://aqicn.org/forecast/ro/' class='lang-ro'><div class='item'><div class='flag sprite-isprt-web-ro'>🇷🇴</div><span class='name'>Romanian <span>- Română</span></span></div></a><a href='https://aqicn.org/forecast/bg/' class='lang-bg'><div class='item'><div class='flag sprite-isprt-web-bg'>🇧🇬</div><span class='name'>Bulgarian <span>- български</span></span></div></a><a href='https://aqicn.org/forecast/ur/' class='lang-ur'><div class='item'><div class='flag sprite-isprt-web-pk'>🇵🇰</div><span class='name'>Urdu <span>- اردو</span></span></div></a><a href='https://aqicn.org/forecast/hi/' class='lang-hi'><div class='item'><div class='flag sprite-isprt-web-in'>🇮🇳</div><span class='name'>Hindi <span>- हिंदी</span></span></div></a><a href='https://aqicn.org/forecast/ar/' class='lang-ar'><div class='item'><div class='flag sprite-isprt-web-ae'>🇦🇪</div><span class='name'>Arabic <span>- العربية</span></span></div></a><a href='https://aqicn.org/forecast/sr/' class='lang-sr'><div class='item'><div class='flag sprite-isprt-web-rs'>🇷🇸</div><span class='name'>Serbian <span>- Српски</span></span></div></a><a href='https://aqicn.org/forecast/bn/' class='lang-bn'><div class='item'><div class='flag sprite-isprt-web-bd'>🇧🇩</div><span class='name'>Bangla <span>- বাংলা</span></span></div></a><a href='https://aqicn.org/forecast/bs/' class='lang-bs'><div class='item'><div class='flag sprite-isprt-web-ba'>🇧🇦</div><span class='name'>Bosnian <span>- босански</span></span></div></a><a href='https://aqicn.org/forecast/hr/' class='lang-hr'><div class='item'><div class='flag sprite-isprt-web-hr'>🇭🇷</div><span class='name'>Croatian <span>- hrvatski</span></span></div></a><a 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c-50.826,1.353-100.822,15.591-144.584,41.175c-3.576,2.09-4.78,6.684-2.689,10.26c2.091,3.577,6.688,4.779,10.26,2.689 c41.588-24.313,89.104-37.843,137.413-39.129c8.588-0.229,15.315-7.118,15.315-15.684V15.7 C508.501,11.456,506.834,7.48,503.806,4.503z M82.685,394.192C124.898,202.331,292.242,63.014,493.501,59.63v32.614 c-84.062,1.542-163.729,29.007-230.839,79.675c-33.24,25.096-62.21,55.108-86.104,89.201 c-23.322,33.276-41.249,69.689-53.362,108.287C106.859,372.564,92.6,381.587,82.685,394.192z M197.599,320.005 c-7.194,2.97-13.979,6.94-20.096,11.85c-12.291,9.865-21.541,23.136-26.566,37.938c-3.812-0.853-7.691-1.361-11.606-1.545 c50.364-151.874,193.863-257.788,354.17-261v34.122C370.235,144.021,257.606,211.886,197.599,320.005z" /> <path d="M274.419,377.211v-0.849c0-4.142-3.357-7.5-7.5-7.5s-7.5,3.358-7.5,7.5v0.849c0,4.142,3.357,7.5,7.5,7.5 S274.419,381.353,274.419,377.211z" /> <path d="M238.442,355.574c-4.142,0-7.5,3.358-7.5,7.5v0.849c0,4.142,3.358,7.5,7.5,7.5s7.5-3.358,7.5-7.5v-0.849 C245.942,358.932,242.584,355.574,238.442,355.574z" /> </svg> <p class='bigletter'>Dự báo chất lượng không khí - còn được gọi là "Mô hình phân tán khí quyển" ( <a href='https://en.wikipedia.org/wiki/Atmospheric_dispersion_modeling'>wikipedia</a> ) là nghệ thuật mô phỏng cách các chất gây ô nhiễm không khí, chẳng hạn như PM <sub>2.5</sub> hoặc Ozone, phân tán trong bầu không khí xung quanh.</p> <p>Kết quả mô phỏng đưa ra nồng độ môi trường xung quanh đối với từng chất gây ô nhiễm không khí, từ đó tính được Chỉ số chất lượng không khí.</p> <p>Có hàng chục mô hình phân tán và nhiều trường đại học, tổ chức trên khắp thế giới đang vận hành một hoặc một vài mô hình trong số đó cho các khu vực khác nhau (ví dụ: Châu Âu, Châu Mỹ lục địa, Châu Á ...). Dưới đây là danh sách chưa đầy đủ và được chọn lọc của một số mô hình đang được sử dụng để cung cấp dự báo Chất lượng Không khí trong dự án "Chỉ số Chất lượng Không khí Thế giới".</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>Mô hình khí quyển</p></h2><section><p>Bạn có thể nhấp vào bất kỳ bản đồ dự báo nào để xem hoạt ảnh dự báo theo thời gian thực cũng như phân tích hiệu quả của mô hình.</p> </section><style> p.bigletter:first-letter { float: left; font-size: 3em; margin-right: .06em; line-height: 90%; } .boundary { fill: none; stroke: #444; } .map { border: 1px solid #a5967e; display: inline-block; width: 500px; max-width: 100%; overflow: hidden; margin: 5px; cursor: pointer; } .map small { color: black; } .map .border { padding: 5px; border: 3px solid white; } .map:hover .border { border: 3px solid black; } </style> <script src='/jscripts/d3/d3.min.js?_=20190418.093123&type=script'></script><script src='/jscripts/forecast/topojson.v1.js?_=20190418.093123&type=script'></script> <script> var worldtopo = fetchJSON("/air/view/country/data/world/world-110m.json"); function maplet(id, imageurl, jsconfurl, bounds) { var width = Math.min(getWindowWidth(), 485), height = 220; var lat1 = bounds[0][0], lat2 = bounds[1][0]; var lng1 = bounds[0][1], lng2 = bounds[1][1]; if (lng1 > 180) lng1 -= 360; var doubleImage = false; if (lng1 == 0 && lng2 >= 359) { lng1 -= 180; lng2 -= 180; doubleImage = true; } var svg = d3.select(id) .append("svg") .attr("width", width) .attr("height", height); var utimediv = d3.select(id) .append("small") .style("color", "#888") .style("font-size", "66%") .html("-"); var center = [(lng1 + lng2) / 2, (lat1 + lat2) / 2]; var scale = 150; var offset = [width / 2, height / 2]; var projection = d3.geo.equirectangular() .scale(scale) .center(center) .translate(offset); var hscale = scale * width / Math.abs(lng2 - lng1); var vscale = scale * height / Math.abs(lat2 - lat1); var scale = (hscale < vscale) ? hscale : vscale; projection = d3.geo.equirectangular() .scale(scale / 2.5) .center(center) .translate(offset); var path = d3.geo.path() .projection(projection); var xy1 = projection([lng1, lat1]); var xy2 = projection([lng2, lat2]); if (doubleImage) { var ww = xy2[0] - xy1[0]; svg.append("svg:image") .attr("xlink:href", imageurl) .attr("x", xy1[0] + ww / 2) .attr("y", xy1[1]) .attr("width", ww) .attr("height", xy2[1] - xy1[1]); svg.append("svg:image") .attr("xlink:href", imageurl) .attr("x", xy1[0] - ww / 2 + 1) .attr("y", xy1[1]) .attr("width", ww) .attr("height", xy2[1] - xy1[1]); } else if (xy2[1] - xy1[1] > 0) { svg.append("svg:image") .attr("xlink:href", imageurl) .attr("x", xy1[0]) .attr("y", xy1[1]) .attr("width", xy2[0] - xy1[0]) .attr("height", xy2[1] - xy1[1]); } else { svg.append("svg:image") .attr("xlink:href", imageurl) .attr("transform", "translate(0," + height + ") scale(1,-1)") .attr("x", xy1[0]) .attr("y", xy2[1]) .attr("width", xy2[0] - xy1[0]) .attr("height", xy1[1] - xy2[1]); } worldtopo.then(function(world) { svg.append("g") .attr("class", "boundary") .selectAll("boundary") .data([topojson.feature(world, world.objects.countries)]) .enter().append("path") .attr("d", path); }); fetchJSON(jsconfurl).then(function(conf) { var basetime = new Date(conf.basetime); utimediv.html(basetime); var days = Math.floor((Date.now() - basetime.getTime()) / (1000 * 24 * 3600)); if (days > 7) { utimediv.html("outdated by " + days + " days; last received on " + conf.basetime); } }); } </script> <a href='/forecast/model/sprintars-asia/vn/'><div class='map' ><div class='border' id='container-sprintars-asia'>SPRINTARS Asia<br><small>Spectral Radiation-Transport Model for Aerosol Species</small><br></div></div></a><script>var bounds = [[60,60],[0,180]];var id = '#container-sprintars-asia';maplet(id,'https://forecast.waqi.info/forecast/aqi/sprintars/asia/best/pm25/8.png/000.8.png','https://forecast.waqi.info/forecast/aqi/sprintars/asia/best/pm25/conf.json',bounds);</script><a href='/forecast/model/sprintars-east-asia/vn/'><div class='map' ><div class='border' id='container-sprintars-east-asia'>SPRINTARS East Asia<br><small>Spectral Radiation-Transport Model for Aerosol Species</small><br></div></div></a><script>var bounds = [[45,100],[20,150]];var id = '#container-sprintars-east-asia';maplet(id,'https://forecast.waqi.info/forecast/aqi/sprintars/east-asia/best/pm25/8.png/000.8.png','https://forecast.waqi.info/forecast/aqi/sprintars/east-asia/best/pm25/conf.json',bounds);</script><a href='/forecast/model/mpim-china/vn/'><div class='map' ><div class='border' id='container-mpim-china'>MPIM China<br><small>Max Planck Institut fur Meteorologie</small><br></div></div></a><script>var bounds = [[17.851486206054688,94.82161712646484],[44.89060974121094,125.14904022216797]];var id = '#container-mpim-china';maplet(id,'https://forecast.waqi.info/forecast/aqi/mpim/china/best/pm25/8.png/000.8.png','https://forecast.waqi.info/forecast/aqi/mpim/china/best/pm25/conf.json',bounds);</script><a href='/forecast/model/silam-asia/vn/'><div class='map' ><div class='border' id='container-silam-asia'>SILAM Asia<br><small>System for Integrated modeLling of Atmospheric coMposition</small><br></div></div></a><script>var bounds = [[7.125,67.125],[53.875,146.875]];var id = '#container-silam-asia';maplet(id,'https://forecast.waqi.info/forecast/aqi/silam/china/best/pm25/8.png/preview.png','https://forecast.waqi.info/forecast/aqi/silam/china/best/pm25/conf.json',bounds);</script><a href='/forecast/model/cams-europe/vn/'><div class='map' ><div class='border' id='container-cams-europe'>CAMS Europe<br><small>Copernicus Atmosphere Monitoring Service NRT</small><br></div></div></a><script>var bounds = [[69.94999694824219,335.04998779296875],[30.04999542236328,44.949981689453125]];var id = '#container-cams-europe';maplet(id,'https://forecast.waqi.info/forecast/aqi/cams/ensemble/best/pm25/8.png/000.8.png','https://forecast.waqi.info/forecast/aqi/cams/ensemble/best/pm25/conf.json',bounds);</script><a href='/forecast/model/emep-europe/vn/'><div class='map' ><div class='border' id='container-emep-europe'>EMEP Europe<br><small>European Monitoring and Evaluation Program</small><br></div></div></a><script>var bounds = [[69.94999694824219,335.04998779296875],[30.04999542236328,44.949981689453125]];var id = '#container-emep-europe';maplet(id,'https://forecast.waqi.info/forecast/aqi/cams/emep/best/pm25/8.png/000.8.png','https://forecast.waqi.info/forecast/aqi/cams/emep/best/pm25/conf.json',bounds);</script><a href='/forecast/model/cams-world/vn/'><div class='map' ><div class='border' id='container-cams-world'>CAMS World<br><small>Copernicus Atmosphere Monitoring Service NRT</small><br></div></div></a><script>var bounds = [[90,0],[-90,359.6000061035156]];var id = '#container-cams-world';maplet(id,'https://forecast.waqi.info/forecast/aqi/cams-nrt//best/pm25/8.png/preview.png','https://forecast.waqi.info/forecast/aqi/cams-nrt//best/pm25/conf.json',bounds);</script><a href='/forecast/model/silam-world/vn/'><div class='map' ><div class='border' id='container-silam-world'>SILAM World<br><small>System for Integrated modeLling of Atmospheric coMposition</small><br></div></div></a><script>var bounds = [[-89.5,-179.75],[89.5,179.75]];var id = '#container-silam-world';maplet(id,'https://forecast.waqi.info/forecast/aqi/silam/glob/best/pm25/8.png/preview.png','https://forecast.waqi.info/forecast/aqi/silam/glob/best/pm25/conf.json',bounds);</script><a href='/forecast/model/ngac-world/vn/'><div class='map' ><div class='border' id='container-ngac-world'>NGAC<br><small>NOAA NEMS GFS Aerosol Component</small><br></div></div></a><script>var bounds = [[90,0],[-90,359]];var id = '#container-ngac-world';maplet(id,'','https://forecast.waqi.info/forecast/aqi/ngac/world-hourly/best/pm10/conf.json',bounds);</script><a href='/forecast/model/gfs/vn/'><div class='map' ><div class='border' id='container-gfs'>GFS<br><small>Global Forecast System</small><br></div></div></a><script>var bounds = [[90,0],[-90,359]];var id = '#container-gfs';maplet(id,'https://forecast.waqi.info/forecast/aqi/gfs/world2/best/total-ozone/8.png/preview.png','https://forecast.waqi.info/forecast/aqi/gfs/world2/best/total-ozone/conf.json',bounds);</script><a href='/forecast/model/ncep-aqm/vn/'><div class='map' ><div class='border' id='container-ncep-aqm'>NCEP EMP AQM<br><small>Air Quality Model (AQM) Product</small><br></div></div></a><script>var bounds = [[51.946,-128.628],[17.821,-57.377999999999986]];var id = 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ở đây?</li> <p>Nếu có, hãy gửi tin nhắn cho chúng tôi từ <a href='/contribute/vn/'>trang đóng góp</a> và chúng tôi sẽ liên hệ với bạn trong thời gian sớm nhất!</p> </div></div></div> <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;padding:5px 0;font-family:"Noto Serif",Cambria,"Palatino Linotype","Book Antiqua","URW Palladio L",serif;;;'>Dự báo chi tiết chất lượng không khí thành phố</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' > <script src='/air/view/forecast/scripts/dist/forecast-page.js?_=20210216.164922&type=script'></script><script src='/air/view/forecast/scripts/dist/forecast-analysis.js?_=20210216.164922&type=script'></script> <link rel='stylesheet' href='https://aqicn.org/images-static//isprites/map-flags/2015-10-05/ispritflags.css' /> <p>Dự báo chất lượng không khí chi tiết có sẵn cho hơn 600 thành phố:</p> <div id='city-forecast-search'></div> <script> forecastAnalyser.renderSearch(d3.select("#city-forecast-search"), function(city) { var url = "/forecast/" + city.id.toLowerCase() + "/"; document.location.href = url; }); </script> <p>Hoặc chỉ cần chọn bất kỳ thành phố nào trong số đó:</p> <a href='/forecast/beijing/vn/'>Beijing</a>, <a href='/forecast/shanghai/vn/'>Shanghai</a>, <a href='/forecast/chengdu/vn/'>Chengdu</a>, <a href='/forecast/shenyang/vn/'>Shenyang</a>, <a href='/forecast/shenzhen/vn/'>Shenzhen</a>, <a href='/forecast/guangzhou/vn/'>Guangzhou</a>, <a href='/forecast/qingdao/vn/'>Qingdao</a>, <a href='/forecast/xian/vn/'>Xian</a>, <a href='/forecast/tianjin/vn/'>Tianjin</a>, <a href='/forecast/saitama/vn/'>Saitama</a>, <a href='/forecast/kyoto/vn/'>Kyoto</a>, <a href='/forecast/osaka/vn/'>Osaka</a>, <a href='/forecast/seoul/vn/'>Seoul</a>, <a href='/forecast/busan/vn/'>Busan</a>, <a href='/forecast/bogota/vn/'>Bogota</a>, <a href='/forecast/delhi/vn/'>Delhi</a>, <a href='/forecast/jakarta/vn/'>Jakarta</a>, <a href='/forecast/ulaanbaatar/vn/'>Ulaanbaatar</a>, <a href='/forecast/hanoi/vn/'>Hanoi</a>, <a href='/forecast/chennai/vn/'>Chennai</a>, <a href='/forecast/kolkata/vn/'>Kolkata</a>, <a href='/forecast/mumbai/vn/'>Mumbai</a>, <a href='/forecast/hyderabad/vn/'>Hyderabad</a>, <a href='/forecast/santiago/vn/'>Santiago</a>, <a href='/forecast/lima/vn/'>Lima</a>, <a href='/forecast/saopaulo/vn/'>Saopaulo</a>, <a href='/forecast/quito/vn/'>Quito</a>, <a href='/forecast/singapore/vn/'>Singapore</a>, <a href='/forecast/kuala-lumpur/vn/'>Kuala-lumpur</a>, <a href='/forecast/ipoh/vn/'>Ipoh</a>, <a href='/forecast/perai/vn/'>Perai</a>, <a href='/forecast/miri/vn/'>Miri</a>, <a href='/forecast/newyork/vn/'>New York</a>, <a href='/forecast/seattle/vn/'>Seattle</a>, <a href='/forecast/chicago/vn/'>Chicago</a>, <a href='/forecast/boston/vn/'>Boston</a>, <a href='/forecast/atlanta/vn/'>Atlanta</a>. <br> <br> </div></div></div> <div class='h1section h1section-divider'><div class='h1section-rainbow'><div></div><div></div><div></div><div></div><div></div></div><h1><div id='h1header4' style='padding:2px;padding:5px 0;font-family:"Noto Serif",Cambria,"Palatino Linotype","Book Antiqua","URW Palladio L",serif;;;'>Tuyên bố từ chối trách nhiệm</div></h1></div><script type='text/javascript'> ; if (!isMobileUA) { fitLine('#h1header4',.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' > <p>Mô hình dự báo này và tất cả AQFS dựa trên nó đều là các sản phẩm nghiên cứu nhằm cung cấp thông tin liên quan đến dự báo Chất lượng Không khí. Tất cả các biện pháp hợp lý đã được thực hiện để đảm bảo chất lượng và độ chính xác của nó. Tuy nhiên:</p> <ul style='color:#888'> <li>Chúng tôi không bảo đảm, rõ ràng hay ngụ ý, cũng như không chịu bất kỳ trách nhiệm pháp lý hoặc trách nhiệm pháp lý nào về tính chính xác, đúng đắn, đầy đủ của thông tin.</li> <li>Chúng tôi không chịu bất kỳ trách nhiệm pháp lý hoặc trách nhiệm pháp lý nào đối với mọi thiệt hại hoặc mất mát có thể xảy ra trực tiếp hoặc gián tiếp từ bất kỳ thông tin nào có trên trang web này hoặc bất kỳ hành động nào được thực hiện do nội dung của trang web này;</li> <li>Chúng tôi có thể thay đổi, xóa, thêm hoặc sửa đổi thông tin có trên trang web này mà không cần thông báo trước</li> </ul> <p>Để biết thêm thông tin về các khái niệm cơ bản về dự báo Chất lượng Không khí (hoặc Mô hình Phân tán Khí quyển), hãy xem bài viết về <a href='/faq/2015-11-05/a-visual-study-of-wind-impact-on-pm25-concentration/vn/'>nghiên cứu trực quan về tác động của gió đối với nồng độ PM <sub>2.5</sub></a> .</p> </div></div></div><div class='h1section h1section-divider'><div class='h1section-rainbow'><div></div><div></div><div></div><div></div><div></div></div><h1><div id='h1header5' style='padding:2px;padding:5px 0;font-family:"Noto Serif",Cambria,"Palatino Linotype","Book Antiqua","URW Palladio L",serif;;;'>Nguồn mô hình dự báo chất lượng không khí</div></h1></div><script type='text/javascript'> ; if (!isMobileUA) { fitLine('#h1header5',.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' ><p>Dự đoán trên dựa trên mô hình meta tổng hợp, được tính toán bằng một số Hệ thống dự báo chất lượng không khí (AQFS):</p> <ul> <li> The <a href='http://sprintars.riam.kyushu-u.ac.jp/indexe.html'> <i>Spectral Radiation-Transport Model for Aerosol Species</i></a> (Sprintars) model from Kyushu University. <li> The <a href='http://m.zq12369.com/forecast.php'><i>China National Air Quality forecast</i></a> by Zhejiang Experts in Experimental Sciences (PM2.5科学实验专家小组). <li> The <a href='http://www.airkorea.or.kr/dustForecast'><i>Air Korea Air Quality forecast</i></a>, by the Korean Integrated Air Quality forecast center(대기질 통합예보센터)</a>. <li> The <a href='http://copernicus-atmosphere.eu'>Copernicus Atmosphere Monitoring Service</a> (CAMS) near-realtime surface ensemble forecast , by the ECMWF. <li> The <a href='http://silam.fmi.fi/'> System for Integrated modeLling of Atmospheric coMposition</a> (SILAM) by the Finnish Meteorological Institute (FMI). <li> The <a href='http://www.mpimet.mpg.de/en/mpimet-homepage/'>Max Planck Institut fur Meteorologie</a> (MPIM) model. <li> The <a href='http://airquality.weather.gov/'> Ozone Air Quality Model</a> (AQM) by the NOAA/NCEP. <li> The <a href='https://weather.gc.ca/aqfm/index_e.html'> <i>Regional Air Quality Deterministic Prediction System </i></a> (RAQDPS) model from the Government of Canada. <li> The <a href='http://www.irceline.be/en/air-quality/forecasts'>irCELine</a> (<i>Belgian Interregional Environment Agency</i>) for the Belgian Regions. <li> The <a href='http://www.lcsqa.org/surveillance/indices/cartographie'>LCSQA</a> <i> (Laboratoire Central de Surveillance de la Qualité de l’Air)</i> for France. <Li> The <a href='http://www.lml.rivm.nl/verwachting/animatie.html'>RIVM</a> <i> (Rijksinstituut voor Volksgezondheid en Milieu)</i> for the Netherlands. <li> The <a href='http://silam.fmi.fi/aqforecast.html?parameter=PM25&region=Northern%20Europe&height=0'>SILAM</a> <i> (System for Integrated modeLling of Atmospheric coMposition)</i> for Northen Europe. <li> The <a href='http://db.eurad.uni-koeln.de/index_e.html?/prognose/cger_e.html'>EURAD</a> <i> (EURopean Air Pollution Dispersion)</i> for Central Europe. </ul> <p>Bản đồ trên dựa trên mô hình cấp độ bề mặt PM <sub>2.5</sub> và màu sắc tuân theo <a href='/faq/2013-09-09/revised-pm25-aqi-breakpoints/vn/'>tiêu chuẩn EPA AQI của Hoa Kỳ</a> .</p></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='h1header6' 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('#h1header6',.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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top: 0; bottom: 0; right: 36px; border: 2px solid #004E74; border-radius: 20px; transition: all 0.3s ease-in 0s; } .onoffswitch-checkbox:checked + .onoffswitch-label .onoffswitch-inner { margin-left: 0; } .onoffswitch-checkbox:checked + .onoffswitch-label .onoffswitch-switch { right: 0px; } </style> <style> #settingsdiv-copy { margin:20px; } #settingsdiv-outer { padding-bottom:10px; position:fixed; z-index: 100003; } #settingsdiv { xdisplay: none; xwidth:200px; xheight:120px; overflow-y: scroll; max-height: 300px; font-size:15px; padding:2px 10px; background-color:#0086c8; -webkit-box-shadow: 1px 1px 2px 0 rgba(0,0,0,0.5); border-radius:3px; -moz-border-radius:3px; -webkit-border-radius:3px; border:3px solid #fff; color:#fff; } #settingsdiv h2 { font-size:20px; } #settings-lang { padding: 5px; } #settings-lang a:hover { text-decoration: none; } #settings-lang .item:hover { background-color: #eee; color: black; } #settings-lang .item:hover .name { color: black; } #settings-lang .item { max-width: 450px; padding: 2px; } #settings-lang .name span { font-size: 16px; } #settings-lang .name { font-size:18px; color: white; font-variant: small-caps; } #settings-lang .flag { vertical-align: text-bottom; display:inline-block; } #settings-lang select { font-size: 18px; } </style> <div id='settingsdiv-outer'> <div id='settingsdiv' > <div onclick='settingsMenu.close()' style='cursor:pointer;border-bottom:1px solid #ccccf8;padding-top:12px;'> <svg height="24px" viewBox="0 0 512 512" width="24px" style='float:right;fill:white;'> <path d="M74.966,437.013c-99.97-99.97-99.97-262.065,0-362.037c100.002-99.97,262.066-99.97,362.067,0 c99.971,99.971,99.971,262.067,0,362.037C337.032,536.998,174.968,536.998,74.966,437.013z M391.782,120.227 c-75.001-74.985-196.564-74.985-271.534,0c-75.001,74.985-75.001,196.55,0,271.535c74.97,74.986,196.533,74.986,271.534,0 C466.754,316.775,466.754,195.212,391.782,120.227z M188.124,369.137l-45.251-45.266l67.876-67.877l-67.876-67.876l45.251-45.267 L256,210.743l67.877-67.892l45.25,45.267l-67.876,67.876l67.876,67.877l-45.25,45.266L256,301.245L188.124,369.137z"/> </svg> <h2>Cài đặt</h2> </div> <br> <center> <div id='settings-lang'> Cài đặt ngôn ngữ: <br> <div class='sprite-isprt-web-gb flag'></div> <div class='sprite-isprt-web-cn flag'></div> <div class='sprite-isprt-web-jp flag'></div> <div class='sprite-isprt-web-kr flag'></div> <div class='sprite-isprt-web-pl flag'></div> <br> <select onchange='location.href = this.value'> <option value='https://aqicn.org/forecast/' >English</option><option value='https://aqicn.org/forecast/cn/' >简体中文 - Chinese</option><option value='https://aqicn.org/forecast/jp/' >日本 - Japanese</option><option value='https://aqicn.org/forecast/es/' >español - Spanish</option><option value='https://aqicn.org/forecast/kr/' >한국의 - Korean</option><option value='https://aqicn.org/forecast/ru/' >русский - Russian</option><option value='https://aqicn.org/forecast/hk/' >繁體中文 - Traditional Chinese</option><option value='https://aqicn.org/forecast/fr/' >Francais - French</option><option value='https://aqicn.org/forecast/pl/' >Polski - Polish</option><option value='https://aqicn.org/forecast/de/' >Deutsch - German</option><option value='https://aqicn.org/forecast/pt/' >Português - Portuguese</option><option value='https://aqicn.org/forecast/vn/' selected>Tiếng Việt - Vietnamese</option><option value='https://aqicn.org/forecast/it/' >Italiano - Italian</option><option value='https://aqicn.org/forecast/id/' >bahasa Indonesia - Indonesian</option><option value='https://aqicn.org/forecast/nl/' >Nederlands - Dutch</option><option value='https://aqicn.org/forecast/fa/' >فارسی - Persian</option><option value='https://aqicn.org/forecast/th/' >ภาษาไทย - Thai</option><option value='https://aqicn.org/forecast/hu/' >Magyar - Hungarian</option><option value='https://aqicn.org/forecast/el/' >Ελληνικά - Greek</option><option value='https://aqicn.org/forecast/ro/' >Română - Romanian</option><option value='https://aqicn.org/forecast/bg/' >български - Bulgarian</option><option value='https://aqicn.org/forecast/ur/' >اردو - Urdu</option><option value='https://aqicn.org/forecast/hi/' >हिंदी - Hindi</option><option value='https://aqicn.org/forecast/ar/' >العربية - Arabic</option><option value='https://aqicn.org/forecast/sr/' >Српски - Serbian</option><option value='https://aqicn.org/forecast/bn/' >বাংলা - Bangla</option><option value='https://aqicn.org/forecast/bs/' >босански - Bosnian</option><option value='https://aqicn.org/forecast/hr/' >hrvatski - Croatian</option><option value='https://aqicn.org/forecast/tr/' >Türkçe - Turkish</option><option value='https://aqicn.org/forecast/uk/' >українська - Ukrainian</option><option value='https://aqicn.org/forecast/cs/' >čeština - Czech</option><option value='https://aqicn.org/forecast/be/' >беларускі - Belarusian</option></select> </div> <br> <table> <tr><td> <center> <i>Temperature unit:</i><br> <span style='font-size:18px'> <span style='display:;' id='settings-temp-label-on'>Celcius</span> <span style='display:none;' id='settings-temp-label-off'>Fahrenheit</span> </span> </center> </td><td> <div class="onoffswitch" onclick='settingsMenu.click("temp")'> <input type="checkbox" name="onoffswitch" class="onoffswitch-checkbox" id="settings-temp" checked > <label class="onoffswitch-label" for="myonoffswitch"> <span class="onoffswitch-inner"></span> <span class="onoffswitch-switch"></span> </label> </div> </table> </center> <br> </div> <div style='display:none;height:0px;' id='settingsdiv-arrow'><div style='width: 0; height: 0; border: 7px solid transparent;top:0px;border-top: 7px solid #fff;position:relative;;margin-left:100px;'></div></div> </div> <script> function CSettingsMenu() { var self=this; var isInit = false; var timeout = null; var isPopup = false; this.show = function() { log("show!"); if (isPopup) { this.close(); return; } isPopup = true; $("#settingsdiv-arrow").hide(); $("#settingsdiv").show(); var pos = $("#footer-settings-img").offset(); $("#settingsdiv-outer").css({ left: "0px", width: "100%", bottom: "30px" }); $("#settingsdiv").css({ width: "100%", textAlign: "center", boxSizing: "border-box" }); }; this.close = function() { log("close!"); $("#settingsdiv").hide(); isPopup = false; }; this.onmouseover = function() { if (isPopup) return; if (!footer || !footer.isFloating()) return; if (getWindowWidth()<800) return; if (!isInit) { $('#settingsdiv-outer').show() .mouseleave(function(){ self.onmouseout(); }) .mouseenter(function(){ self.onmouseover(); }); display("temp"); isInit = true; } if (timeout) clearTimeout(timeout); timeout = null; var pos = $("#footer-settings-img").offset(); var px = (pos.left+6-100); $("#settingsdiv-outer").css({ left: px + "px", bottom: (30) + "px" }); $("#settingsdiv").show(); $("#settingsdiv-arrow").delay(150).show(); var tb = document.getElementById("settingsdiv").getBoundingClientRect(), w =getWindowWidth(); var ml = Math.min((w-tb.right-2),0); $("#settingsdiv-outer").css({left:(px+ml)+"px"}); }; this.onmouseout = function() { if (isPopup) return; isShown = false; if (timeout) clearTimeout(timeout); timeout = setTimeout(function(){ $("#settingsdiv").slideUp(200); $("#settingsdiv-arrow").hide(); },150); }; this.click = function(item) { var status = store.get('aqicn-settings-'+item); store.set('aqicn-settings-'+item,status==1?2:1); display(item); if (item=="temp") convertTemperature(); }; this.val = function(item) { var status = store.get('aqicn-settings-'+item); return status!=1; }; var display = function(item) { var status = store.get('aqicn-settings-'+item); if (status==1) { $("#settings-"+item+"-label-off").show(); $("#settings-"+item+"-label-on").hide(); } else { $("#settings-"+item+"-label-on").show(); $("#settings-"+item+"-label-off").hide(); } var o = document.getElementById("settings-"+item); if (o) o.checked = status!=1; }; document.getElementById('settingsdiv-outer').addEventListener('touchmove', function(e) { e.preventDefault(); }, false); return this; } var settingsMenu = new CSettingsMenu(); </script> <script type="text/javascript"> fitLine(".link",.9); </script> <script src='https://aqicn.org/air-cache/jquery-3.4.1.min.js?_=20191127.152416' type='text/javascript'></script> <script type="text/javascript"> function initTime() { if (isMobileUA) return; function setTimeText() { var monthNames = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ]; var dayNames= ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]; var newDate = new Date(); newDate.setDate(newDate.getDate()); 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"0" : "" ) + hours; time += ":"+( minutes < 10 ? "0" : "" ) + minutes; var ot = document.getElementById("ClockTime"); if (ot) ot.innerHTML = time; } setInterval( function() { setTimeText() }, 1000*60*15 ); setTimeText(); }; aqi18n.register('aqi-implication-0-50',"Ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c coi l\u00e0 th\u1ecfa \u0111\u00e1ng, v\u00e0 \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed g\u00e2y ra \u00edt ho\u1eb7c kh\u00f4ng c\u00f3 r\u1ee7i ro");aqi18n.register('aqi-level-0-50',"T\u1ed1t");aqi18n.register('aqi-implication-50-100',"Ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn; tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m c\u00f3 th\u1ec3 c\u00f3 m\u1ed9t m\u1ed1i quan t\u00e2m v\u1ec1 s\u1ee9c kh\u1ecfe v\u1eeba ph\u1ea3i cho m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng r\u1ea5t nh\u1ecf nh\u1eefng ng\u01b0\u1eddi nh\u1ea1y c\u1ea3m b\u1ea5t th\u01b0\u1eddng v\u1edbi \u00f4 nhi\u1ec5m kh\u00f4ng kh\u00ed.");aqi18n.register('aqi-level-50-100',"V\u1eeba ph\u1ea3i");aqi18n.register('aqi-implication-100-150',"C\u00e1c th\u00e0nh vi\u00ean c\u1ee7a c\u00e1c nh\u00f3m nh\u1ea1y c\u1ea3m c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng s\u1ee9c kh\u1ecfe. C\u00f4ng ch\u00fang n\u00f3i chung kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.");aqi18n.register('aqi-level-100-150',"Kh\u00f4ng t\u1ed1t cho c\u00e1c nh\u00f3m nh\u1ea1y c\u1ea3m");aqi18n.register('aqi-level-100-150-html',"<div style='line-height:1.1'>Kh\u00f4ng t\u1ed1t<br><span style='font-size:16px;'>cho c\u00e1c nh\u00f3m nh\u1ea1y c\u1ea3m<\/span><\/div>");aqi18n.register('aqi-implication-150-200',"M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u tr\u1ea3i nghi\u1ec7m nh\u1eefng \u1ea3nh h\u01b0\u1edfng s\u1ee9c kh\u1ecfe; c\u00e1c th\u00e0nh vi\u00ean c\u1ee7a c\u00e1c nh\u00f3m nh\u1ea1y c\u1ea3m c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng h\u01a1n v\u1ec1 s\u1ee9c kh\u1ecfe");aqi18n.register('aqi-level-150-200',"C\u00f3 h\u1ea1i cho s\u1ee9c kho\u1ebb");aqi18n.register('aqi-level-150-200-html',"<div style='font-size:66%'>C\u00f3 h\u1ea1i cho s\u1ee9c kho\u1ebb<\/div>");aqi18n.register('aqi-implication-200-300',"C\u1ea3nh b\u00e1o s\u1ee9c kh\u1ecfe c\u1ee7a t\u00ecnh tr\u1ea1ng kh\u1ea9n c\u1ea5p. To\u00e0n b\u1ed9 d\u00e2n s\u1ed1 c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.");aqi18n.register('aqi-level-200-300',"R\u1ea5t nguy h\u1ea1i cho s\u1ee9c kh\u1ecfe");aqi18n.register('aqi-level-200-300-html',"<div style='line-height:1.1'>R\u1ea5t nguy h\u1ea1i<br><span style='font-size:16px;'>cho s\u1ee9c kh\u1ecfe<\/span><\/div>");aqi18n.register('aqi-implication-300-500',"C\u1ea3nh b\u00e1o v\u1ec1 s\u1ee9c kh\u1ecfe: m\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng h\u01a1n v\u1ec1 s\u1ee9c kh\u1ecfe");aqi18n.register('aqi-level-300-500',"Nguy hi\u1ec3m");aqi18n.register('updated',"\u0110\u00e3 c\u1eadp nh\u1eadt"); </script> <script type="text/javascript"> ["initFooter","preInitPage","initTime"].forEach(function(f){ if (window[f]) { try { window[f](); } catch (e) { loge("error in "+f,e); }} }); </script> <script src='/jscripts/moment/bundle.min.js?_=20200103.150752&type=script'></script> <script src='https://aqicn.org/air-cache/tingle/0.15.1/tingle.min.js?_=20191109.130307' type='text/javascript'></script> <script type="text/javascript"> document.addEventListener("DOMContentLoaded", function() { ["Page","HeadSearch","Search","Notify","Geolocate","AqiForecast","Download","Sharing","Page2"].forEach(function(f){ f = "init"+f; if (window[f]) { try { window[f](); } catch (e) { loge ("error in "+f,e,e.stack);}; } }); if (typeof ntfOnInit != "undefined") ntfOnInit(); }); </script> <style type="text/css"> .uv-icon.uv-top-right { position:absolute!important;top:38px!important;z-index: 1!important; } .uv-icon.uv-bottom-right { bottom:42px!important;} ._hj-f5b2a1eb-9b07_widget { z-index: 0!important; } #uvTab { z-index: 100!important; } .uv-icon { z-index: 100; } </style> <script type="text/javascript"> (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){ (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o), m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m) })(window,document,'script','https://www.google-analytics.com/analytics.js','ga'); ga('create', 'UA-28507883-1', 'auto'); ga('send', 'pageview'); try { var images = document.querySelectorAll('.async-img'); var config = { rootMargin: '50px 0px', threshold: 0.01}; function preloadImage(img) { img.src = img.dataset.src; } function onIntersection(entries) { entries.forEach(function(entry) { if (entry.intersectionRatio > 0) { observer.unobserve(entry.target); preloadImage(entry.target); } }) } var observer = new IntersectionObserver(onIntersection, config); images.forEach(function(image){observer.observe(image)}); } catch (e) {} </script>  </body> </html> </section>