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title='Bulgarian' class='sprite-isprt-web-bg flag-bg'>🇧🇬</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//ur'><div title='Urdu' class='sprite-isprt-web-pk flag-ur'>🇵🇰</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//hi'><div title='Hindi' class='sprite-isprt-web-in flag-hi'>🇮🇳</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//ar'><div title='Arabic' class='sprite-isprt-web-ae flag-ar'>🇦🇪</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//sr'><div title='Serbian' class='sprite-isprt-web-rs flag-sr'>🇷🇸</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//bn'><div title='Bangla' class='sprite-isprt-web-bd flag-bn'>🇧🇩</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//bs'><div title='Bosnian' class='sprite-isprt-web-ba flag-bs'>🇧🇦</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//hr'><div title='Croatian' class='sprite-isprt-web-hr flag-hr'>🇭🇷</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//tr'><div title='Turkish' class='sprite-isprt-web-tr flag-tr'>🇹🇷</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//uk'><div title='Ukrainian' class='sprite-isprt-web-ua flag-uk'>🇺🇦</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//cs'><div title='Czech' class='sprite-isprt-web-cz flag-cs'>🇨🇿</div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints/' 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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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/faq/2013-09-09/revised-pm25-aqi-breakpoints//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 href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//tr' class='lang-tr'><div class='item'><div class='flag sprite-isprt-web-tr'>🇹🇷</div><span class='name'>Turkish <span>- Türkçe</span></span></div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//uk' class='lang-uk'><div class='item'><div class='flag sprite-isprt-web-ua'>🇺🇦</div><span class='name'>Ukrainian <span>- українська</span></span></div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//cs' class='lang-cs'><div class='item'><div class='flag sprite-isprt-web-cz'>🇨🇿</div><span class='name'>Czech <span>- čeština</span></span></div></a><a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//be' class='lang-be'><div class='item'><div class='flag sprite-isprt-web-by'>🇧🇾</div><span class='name'>Belarusian <span>- беларускі</span></span></div></a></div></div></div><div class="hdrshare"><script type="text/javascript"> function initSharing(){aqisrv.here().then(function(where){country = where.Country.IsoCode;if (country!='CN') {loadScriptAsync("https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v5.0&appId=643196515742584&autoLogAppEvents=1")}}).catch(function(e){console.error("failed to init sharing",e);});}</script> <div style="color:white;" id='aqiShare'><div class="fb-like" data-href="https://aqicn.org/here/" data-width="" data-layout="button_count" data-action="like" data-size="small" data-lazy="true" data-colorscheme="dark" data-share="true"></div></div></div><style type="text/css">/* SEARCH AND MORE */.hsearch {position: absolute;width:245px;height:32px;display: block;margin-top:0px;margin-bottom:7px;overflow:hidden;z-index:100;right:54px;}.hsearch #hsearch-btn {width:25px;height:25px;float:left;}.hsearch-inner {width:245px;}.hsearch .bottom, .hsearch .left, .hsearch .right {position: 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0;font-family:"Noto Serif",Cambria,"Palatino Linotype","Book Antiqua","URW Palladio L",serif;;;'>Breakpoint AQI PM2.5 rivisti</div><div id='h1header2' class='h1sub' >Revised PM2.5 AQI breakpoints</div></h1></div><script type='text/javascript'> ; if (!isMobileUA) { fitLine('#h1header1',.88,{maxfs:45});fitLine('#h1header2',.88,{maxfs:38}); }; </script><style>.section-outer {text-align: initial;}.section-content {max-width: 95%;width: 1100px;font-size: 18px;min-height: 300px;text-align: initial;margin-top: 10px;margin-bottom: 10px;line-height: 1.8;margin-left: auto;margin-right: auto;}.section-content-tight {min-height: 0px;}.section-content-alt {background-color: #f0f0f0;border-top: 1px solid #ccc;border-bottom: 1px solid #ddd};.section-banner {background-size: 100%;background: url(https://aqicn.org/images//bluesky-banner-panoramic.jpg) no-repeat center bottom #eee;margin-top: -2px;z-index: -1;border-bottom: 1px solid #888;width: 100%;}.h2-title {font-family: inherit;font-size: 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{text-decoration: none;}</style><i style='color:#888;font-size:13px;word-break: break-all;'>Condividere: <a href='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints/it/'>aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints/it/</a></i><br><div class='entry-content' ng-controller='MainController as ctrl'> <p>Per qualche motivo storico, la formula di conversione AQI utilizzata per alcune delle città del progetto World Air Quality Index non utilizzava lo <a href='http://www.epa.gov/airquality/particlepollution/2012/decfsstandards.pdf' target=_>standard EPA PM <sub>2.5</sub> aggiornato del 2012</a> . (Ciò è rilevante solo per le città dell'Asia, come Giappone e Taiwan. Altri continenti (America, Europa e Australia) hanno sempre utilizzato lo standard del 2012.</p> <p>La modifica principale di questo standard EPA aggiornato, pubblicato il 14 dicembre 2012, rispetto al precedente (pubblicato nel 1999), consiste nel ridurre (limitare) il livello AQI PM <sub>2.5</sub> 50 da 15 µg/m <sup>3</sup> a 12 µg/m <sup>3</sup> , e questo al fine di imporre standard di qualità dell’aria più rigorosi.</p> <p>Dal 9 settembre 2013, tutti i paesi utilizzano la stessa scala di conversione AQI PM2,5, che si riflette in questa tabella:</p> <br> <center><table class='fetching' style='width:80%!important'><tr style='min-height:30px;'><td width=30% style='background:#aaaaaa;color:#dddddd;'>AQI Category</td><td width=20% >Index Values<td width=25% >Previous Breakpoints<br><small>(µg/m<sup>3</sup>, 24-hour average)<td width=25% >Revised Breakpoints<br><small>(µg/m<sup>3</sup>, 24-hour average)<tr style='min-height:30px;'><td width=30% style='background:#009966;color:#ffffff;'>Good</td><td width=20% >0 - 50<td width=25% >0.0 - 15.0<td width=25% >0.0 – <b>12.0</b><tr style='min-height:30px;'><td width=30% style='background:#ffde33;color:#000000;'>Moderate</td><td width=20% >51 - 100<td width=25% >>15.0 - 40<td width=25% >12.1 – <b>35.4</b><tr style='min-height:30px;'><td width=30% style='background:#ff9933;color:#000000;'>Unhealthy for Sensitive Groups</td><td width=20% >101 – 150<td width=25% >>40 – 65<td width=25% >35.5 – <b>55.4</b><tr style='min-height:30px;'><td width=30% style='background:#cc0033;color:#ffffff;'>Unhealthy</td><td width=20% >151 – 200<td width=25% >> 65 – 150<td width=25% >55.5 – 150.4<tr style='min-height:30px;'><td width=30% style='background:#660099;color:#ffffff;'>Very Unhealthy</td><td width=20% >201 – 300<td width=25% >> 150 – 250<td width=25% >150.5 – 250.4<tr style='min-height:30px;'><td width=30% style='background:#7e0023;color:#ffffff;'>Hazardous</td><td width=20% >301 – 400<td width=25% >> 250 – 350<td width=25% >250.5 – 350.4<tr style='min-height:30px;'><td width=30% style='background:#7e0023;color:#ffffff;'>Hazardous</td><td width=20% >401 – 500<td width=25% >> 350 – 500<td width=25% >350.5 – 500</table></center> <br> <style> table.aqicomptable { border:0px solid black; border-spacing:0px; } table.aqicomptable td { margin:0px; padding:0px; } </style> <br> On a PM<sub>2.5</sub> particule mass scale from 0µg/m<sup>3</sup> to 100µg/m<sup>3</sup>, here is a visual comparison for the old and new standard AQI grades: <br> <br> <center><table class='aqicomptable' width=80%><tr><td>Particule<br>mass</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>10</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>20</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>30</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>40</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>50</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>60</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>70</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>80</td><td colspan=50 style='text-align:left;font-size:10px;width:5%;'> µg/m<sup>3</sup></td><td colspan=50 style='text-align:right;font-size:10px;width:5%;'>90</td></tr><tr><td></td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td></tr><tr><td>Old AQI<br>Standard:</td><td colspan=150 style='background:#009966;color:#ffffff;text-align:center;'><i>0..50</i></td><td colspan=250 style='background:#ffde33;color:#000000;text-align:center;'><i>50..100</i></td><td colspan=250 style='background:#ff9933;color:#000000;text-align:center;'><i>100..150</i></td><td colspan=350 style='background:#cc0033;color:#ffffff;text-align:center;'><i>150.....</i></td></tr><tr><td></td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td><td colspan=100 style='border-right:1px dashed black;'> </td></tr><tr><td>New AQI<br>Standard:</td><td colspan=120 style='background:#009966;color:#ffffff;text-align:center;'><i>0..50</i></td><td colspan=234 style='background:#ffde33;color:#000000;text-align:center;'><i>50..100</i></td><td colspan=200 style='background:#ff9933;color:#000000;text-align:center;'><i>100..150</i></td><td colspan=446 style='background:#cc0033;color:#ffffff;text-align:center;'><i>150.....</i></td></tr></table></center><br> <br> The Ozone calculation has also been updated to taken into account the <a href='http://www.nws.noaa.gov/ost/air_quality/FAQ_01172011.pdf'>8-hours standard</a>: The Ozone AQI is the calculated as the maximum of the 1-hour and 8 hours AQI, where the 1 hour AQI is only valid above 100 and the 8 hours AQI below 300. The 8 hour averaging is based on the calculation described in the <a href='http://www.arb.ca.gov/regact/area06/appe.pdf'>procedure for calculating state 8-hour ozone concentrations</a>. <br> <br> <center><table class='fetching' style='width:80%!important'><tr style='min-height:30px;'><td width=30% style='background:#aaaaaa;color:#dddddd;'>AQI Category</td><td width=20% >Index Values<td width=25% >8-hours breakpoints<br><small>(ppm)<td width=25% >1-hour breakpoints<br><small>(ppm)<tr style='min-height:30px;'><td width=30% style='background:#009966;color:#ffffff;'>Good</td><td width=20% >0 - 50<td width=25% >0 - 60<td width=25% >-<tr style='min-height:30px;'><td width=30% style='background:#ffde33;color:#000000;'>Moderate</td><td width=20% >51 - 100<td width=25% >60 - 75<td width=25% >-<tr style='min-height:30px;'><td width=30% style='background:#ff9933;color:#000000;'>Unhealthy for Sensitive Groups</td><td width=20% >101 – 150<td width=25% >75 – 95<td width=25% >125 - 165<tr style='min-height:30px;'><td width=30% style='background:#cc0033;color:#ffffff;'>Unhealthy</td><td width=20% >151 – 200<td width=25% >95 – 115<td width=25% >165 - 205<tr style='min-height:30px;'><td width=30% style='background:#660099;color:#ffffff;'>Very Unhealthy</td><td width=20% >201 – 300<td width=25% >115 – 375<td width=25% >205 - 405<tr style='min-height:30px;'><td width=30% style='background:#7e0023;color:#ffffff;'>Hazardous</td><td width=20% >301 – 500<td width=25% >-<td width=25% >405 - 505</table></center><br> <br> </div></div></div></div><center style='border-top: 1px solid #ccc'><center style='margin:10px 0;'><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-0281575029452656" data-ad-slot="2455076269" data-ad-format="auto"></ins></center><script>(adsbygoogle = window.adsbygoogle || []).push({});</script><div class='section-content'><a href='/faq/" . srvLang() . "'><span>Clicca qui per vedere tutte le voci delle FAQ</span></a><div style='margin-left: 20px;line-heigh:1.5;color:#888;' class='faqmore'><style type='text/css'>.faqmore li a:hover {background: #62a6c8;color: white;text-decoration: none;}.faqmore li a {color: #888;}</style><li><a href='https://aqicn.org/scale/it/'>AQI Scale: What do the colors and numbers mean?</a></li><li><a href='https://aqicn.org/faq/using-statistical-distances-for-real-time-sensor-networks-validation/it/'>Using Statistical Distances for Real-time Sensor Networks Validation</a></li><li><a href='https://aqicn.org/faq/2017-01-10/nitrogen-dioxyde-no2-in-our-atmosphere/it/'>Nitrogen Dioxyde (NO<sub>2</sub>) in our atmosphere</a></li></div><div style='height:1px;background-color:#aaaaaa;width:220px;margin-top:5px;'></div><center><script>var i18nTexts=(i18nTexts||[]);i18nTexts.push({"wa.KqlOlZrllRNJ+7u88XlbL2RQFwo=":"Oops! Qualcosa \u00e8 andato storto. Per favore riprova pi\u00f9 tardi.","wa.ds6QyCdIOHG4hhIEHD2rFqI\/WwI=":"Iscriviti alla nostra mailing list mensile gratuita e ricevi una notifica quando sono disponibili nuovi articoli.","wa.Xi+TKw0nK3I5533XVrPPC2U4EGA=":"la tua email","wa.P6QFTyFPD4Bj2PtEU75l1GDj4ww=":"invia","wa.FoXcvD6sGbwj\/zOhqhL39XuXQsA=":"Per favore attendi mentre registri la tua email"})</script><script src='/webapp/dist/mailing-dyn.740fe2cfc24722505254.js?_=1706407958' type='text/javascript'></script></center><div id='ntf-body-first' style='display:none;'></div><script>function ntfConf() {return {page: "faq",divId: "ntf-body-first"}}</script></div></center><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;;'>Informazioni sulla misurazione della qualità dell'aria e dell'inquinamento:</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>Informazioni sui livelli di qualità dell'aria<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 >Valori dell'indice di qualità dell'aria (AQI).<td>Livelli di preoccupazione per la salute</td></tr></thead><tr style="background-color:#009966;"><td class='aqiwtxt' nowrap="true">0 - 50</td><td class='aqiwtxt'>Buona</td><td class='aqiwtxt'>La qualità dell'aria è considerata soddisfacente e l'inquinamento atmosferico presenta rischi minimi o nulli</td></tr><tr style="background-color:#ffde33" class='aqibtxt'><td class='aqibtxt' nowrap="true">51 -100</td><td class='aqibtxt'>Moderato</td><td class='aqibtxt'>La qualità dell'aria è accettabile; tuttavia, per alcuni inquinanti può esserci un problema di salute moderato per un numero molto limitato di persone che sono insolitamente sensibili all'inquinamento atmosferico.</td></tr><tr style="background-color:#ff9933;"><td class='aqibtxt' nowrap="true">101-150</td><td class='aqibtxt'>Malsano per gruppi sensibili</td><td class='aqibtxt'>I residenti appartenenti a gruppi sensibili (per patologie) possono avere effetti sulla salute. È improbabile che gli effetti siano seri per tutta la popolazione.</td></tr><tr style="background-color:#cc0033;"><td class='aqiwtxt' nowrap="true">151-200</td><td class='aqiwtxt'>malsano</td><td class='aqiwtxt'>Ognuno può iniziare a sperimentare effetti sulla salute; i membri di gruppi sensibili possono avere effetti sulla salute più gravi</td></tr><tr style="background-color:#660099;"><td class='aqiwtxt' nowrap="true">201-300</td><td class='aqiwtxt'>Molto malsano</td><td class='aqiwtxt'>Avvisi sulla salute delle condizioni di emergenza. È più probabile che l'intera popolazione sia colpita.</td></tr><tr style="background-color:#7e0023;"><td class='aqiwtxt' nowrap="true">300+</td><td class='aqiwtxt'>Pericoloso</td><td class='aqiwtxt'>Allerta salute: chiunque può essere soggetto a effetti piu gravi sulla propria salute</td></tr></table></div><br>Per saperne di più sulla qualità dell'aria e sull'inquinamento, consulta l' <a href='http://en.wikipedia.org/wiki/Air_quality'>argomento Qualità dell'aria di Wikipedia</a> o la <a href='http://www.airnow.gov/index.cfm?action=aqibasics.aqi'>guida Airnow sulla qualità dell'aria e la tua salute</a> .<br><br>Per consigli sanitari molto utili del dottor Richard Saint Cyr MD di Pechino, controlla il blog <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>Avviso di utilizzo</b>: Tutti i dati relativi alla qualità dell'aria non sono validati al momento della pubblicazione e, a causa dell'assicurazione della qualità, questi dati possono essere modificati, senza preavviso, in qualsiasi momento. 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di qualità dell'aria</a></li><li><a href='/forecast/it/'>Previsione della qualità dell'aria</a></li><li><a href='/products/it/'>Prodotti per la qualità dell'aria (maschere, monitor...)</a></li><li><a href='/api/it/'>API (interfaccia di programmazione dell'applicazione)</a></li><li><a href='/data-platform/it/'>Piattaforma dati storici</a></li></div><div class='footercolumn2 footercolumn'><h3>Credits</h3><br><li><a href='/sources/it/'>Tutta l'EPA nel mondo per il loro eccellente lavoro nel mantenere, misurare e fornire informazioni sulla qualità dell'aria ai cittadini del mondo</a></li><li><a href='http://www.maxmind.com' target=_>Questo prodotto include dati GeoLite2 creati da MaxMind, disponibili su maxmind.com.</a><li><a href='http://geonames.org' target=_>Questo prodotto include informazioni sulla città di GeoNames, disponibili su geonames.org.</a><li><a href="http://openweathermap.org/" target="__s">Open Weather Map, combinato con l'algoritmo di miglioramento qweather™</a><li><a 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Chinese</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//jp' >日本 - Japanese</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//es' >español - Spanish</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//kr' >한국의 - Korean</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//ru' >русский - Russian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//hk' >繁體中文 - Traditional Chinese</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//fr' >Francais - French</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//pl' >Polski - Polish</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//de' >Deutsch - German</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//pt' >Português - Portuguese</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//vn' >Tiếng Việt - Vietnamese</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//it' selected>Italiano - Italian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//id' >bahasa Indonesia - Indonesian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//nl' >Nederlands - Dutch</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//fa' >فارسی - Persian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//th' >ภาษาไทย - Thai</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//hu' >Magyar - Hungarian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//el' >Ελληνικά - Greek</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//ro' >Română - Romanian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//bg' >български - Bulgarian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//ur' >اردو - Urdu</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//hi' >हिंदी - Hindi</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//ar' >العربية - Arabic</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//sr' >Српски - Serbian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//bn' >বাংলা - Bangla</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//bs' >босански - Bosnian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//hr' >hrvatski - Croatian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//tr' >Türkçe - Turkish</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//uk' >українська - Ukrainian</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//cs' >čeština - Czech</option><option value='https://aqicn.org/faq/2013-09-09/revised-pm25-aqi-breakpoints//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());var od = document.getElementById("ClockTime");if (od) od.innerHTML = dayNames[newDate.getDay()] + " " + monthNames[newDate.getMonth()] + ' ' + newDate.getDate() + ', ' + newDate.getFullYear();var minutes = new Date().getMinutes();var hours = new Date().getHours();var time = ( hours < 10 ? 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