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href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//vn'><div title='Vietnamese' class='sprite-isprt-web-vn flag-vi'></div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//it'><div title='Italian' class='sprite-isprt-web-it flag-it'>🇮🇹</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//id'><div title='Indonesian' class='sprite-isprt-web-id flag-id'>🇮🇩</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//nl'><div title='Dutch' class='sprite-isprt-web-nl flag-nl'>🇳🇱</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//fa'><div title='Persian' class='sprite-isprt-web-ir flag-fa'>🇮🇷</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//th'><div title='Thai' class='sprite-isprt-web-th flag-th'>🇹🇭</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//hu'><div title='Hungarian' class='sprite-isprt-web-hu flag-hu'>🇭🇺</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//el'><div title='Greek' class='sprite-isprt-web-gr flag-el'>🇬🇷</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//ro'><div title='Romanian' class='sprite-isprt-web-ro flag-ro'>🇷🇴</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//bg'><div title='Bulgarian' class='sprite-isprt-web-bg flag-bg'>🇧🇬</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//ur'><div title='Urdu' class='sprite-isprt-web-pk flag-ur'>🇵🇰</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//hi'><div title='Hindi' class='sprite-isprt-web-in flag-hi'>🇮🇳</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//ar'><div title='Arabic' class='sprite-isprt-web-ae flag-ar'>🇦🇪</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//sr'><div title='Serbian' class='sprite-isprt-web-rs flag-sr'>🇷🇸</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//bn'><div title='Bangla' class='sprite-isprt-web-bd flag-bn'>🇧🇩</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//bs'><div title='Bosnian' class='sprite-isprt-web-ba flag-bs'>🇧🇦</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//hr'><div title='Croatian' class='sprite-isprt-web-hr flag-hr'>🇭🇷</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//tr'><div title='Turkish' class='sprite-isprt-web-tr flag-tr'>🇹🇷</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//uk'><div title='Ukrainian' class='sprite-isprt-web-ua flag-uk'>🇺🇦</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//cs'><div title='Czech' class='sprite-isprt-web-cz flag-cs'>🇨🇿</div></a><a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand/' 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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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 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Antiqua","URW Palladio L",serif;'><div class='section-outer'><div class='section-content' ><i>Posted on May 2<sup>nd</sup> 2015</i><div style='height:1px;background-color:#aaaaaa;width:300px;margin-top:5px;'></div><div id="gtrans-div-id" style="float:right" class="gtrans-div"></div><script>try { googleTranslate(); } catch (e) {}</script><div class='ui-share-btns'><a id='share-facebook' href='https://www.facebook.com/dialog/share?app_id=643196515742584&display=popup&href=https%3A%2F%2Faqicn.org%2Ffaq%2F2015-05-02%2Fsouth-asian-air-quality-scales-malaysia-and-thailand%2F&redirect_uri=https%3A%2F%2Faqicn.org%2Ffaq%2F2015-05-02%2Fsouth-asian-air-quality-scales-malaysia-and-thailand%2F' class='ui-share-btn' title=''><svg viewBox="0 0 24 24" width=24px height=24px xmlns="http://www.w3.org/2000/svg"><path d="M24 12.073c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.99 4.388 10.954 10.125 11.854v-8.385H7.078v-3.47h3.047V9.43c0-3.007 1.792-4.669 4.533-4.669 1.312 0 2.686.235 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0;vertical-align: middle;}.ui-share-btns svg {height: 20px;vertical-align: middle;fill: white;}.ui-share-btn {background-color: #25a1de;color: rgba(255, 255, 255, .8);font-size: 15px;line-height: 20px;display: inline-block;text-align: center;border: 1px solid #0086c8;cursor: pointer;border-radius: 4px;padding: 3px 5px;margin: 3px;max-width: 800px;min-width: 30px;}.ui-share-btn:first-child {margin-left: 0px;}.ui-share-btn:hover {background-color: #f8f8f8;border-color: #adadad;text-decoration: none;color: black;}.ui-share-btn:hover svg {fill: black;}.ui-share-btn:hover svg g {fill: black;}.ui-share-btn a:hover {text-decoration: none;}</style><i style='color:#888;font-size:13px;word-break: break-all;'>Share: <a href='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand/'>aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand/</a></i><br><div class='entry-content' ng-controller='MainController as ctrl'> <link rel='stylesheet' href='/images/flags.css/css/flag-icon.min.css' /> <div style='float:right;padding-left:10px;'> <center> <small> <div class='img-thumbnail flag flag-icon-background flag-icon-my' style='width:250px;height:150px;'></div> Flag of Malaysia<br><small>(Jalur Gemilang)</small> <br> <br> <div class='img-thumbnail flag flag-icon-background flag-icon-th' style='width:250px;height:150px;'></div> Flag of Thailand<br><small>ธงไตรรงค์, Thong Trairong</small> </small> </center> </a> </small> </div> <span style='font-size:15px;color:#444;background-color:#eee;padding:3px;'> <b>Note</b>: This the second article of series on '<i><a href='/faq/2015-03-20/a-comparison-of-worldwide-air-quality-scales-part-1/'>Worldwide Air Quality Scales</a></i>'. </span> <p class='bigletter'> Air Quality for Malaysia has been available for a long time, but unlike other countries, only the composite AQI is provided. The AQI for the individual pollutants such as PM<sub>10</sub>, Ozone ... is not available, which makes the convertion to the US EPA scale more difficult. </p> <p> Fortunately, the information about the AQI scale used in Malaysia, also known as API (for Air Pollutant Index) is clearly explained in the document '<a href='/images/aqi-scales/malaysia-api-guide.pdf'>A guide to Air Pollutant Index in Malaysia</a>'. </p> <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 1.03125 9.03125 C 1.0536237 9.2185949 1.1014372 9.4156735 1.15625 9.59375 C 1.4590854 10.826485 2.2046296 11.91918 3.21875 12.78125 C 4.0779092 13.511593 5.1369309 14.083861 6.3125 14.53125 A 1.0001 1.0001 0 0 0 6.53125 14.9375 C 8.1339345 16.910035 12.101162 19.118434 18.1875 18.59375 A 1.0043849 1.0043849 0 0 0 18 16.59375 C 14.906411 16.860439 12.500325 16.269357 10.78125 15.5 C 14.30154 15.772761 18.245209 15.070028 21.71875 12.96875 A 1.0021949 1.0021949 0 1 0 20.6875 11.25 C 16.887924 13.548509 12.317006 14.000584 8.78125 13.21875 C 8.6725971 13.194724 8.5753958 13.151278 8.46875 13.125 C 10.108287 13.189898 11.88322 13.060799 13.6875 12.6875 C 16.718701 12.060355 19.36029 10.886006 21.21875 9.4375 C 23.067114 7.9968631 24.272087 6.1533076 23.875 4.21875 C 23.8732 4.20861 23.8769 4.197602 23.875 4.1875 C 23.513143 2.2541955 21.685558 1.0369822 19.4375 0.4375 C 18.307598 0.13619269 17.031654 -0.02489364 15.65625 -0.03125 z M 15.65625 1.96875 C 16.883971 1.97489 18.004902 2.1263073 18.9375 2.375 C 20.802695 2.8723854 21.754612 3.7133252 21.90625 4.5625 A 1.0001 1.0001 0 0 0 21.9375 4.625 C 22.12047 5.4788616 21.54154 6.6735055 20 7.875 C 18.45846 9.0764945 16.081299 10.145895 13.3125 10.71875 C 10.546306 11.291066 7.7660826 11.269646 5.8125 10.78125 C 4.8357087 10.537052 4.0847823 10.157122 3.625 9.78125 C 3.3682882 9.5713881 3.1893221 9.3858538 3.09375 9.1875 C 3.0413411 8.9743851 3.0082478 8.7545393 3 8.53125 C 3.0633474 7.4789308 3.7648202 6.2771492 5.1875 5.15625 C 6.6815884 3.9790894 8.91349 2.9489331 11.6875 2.375 C 13.071248 2.0887073 14.428529 1.9626064 15.65625 1.96875 z M 15.96875 3.65625 C 14.93792 3.617106 13.843984 3.69192 12.71875 3.90625 A 1.0001 1.0001 0 0 0 12.6875 3.9375 C 9.8940815 4.582135 7.6159262 5.8506824 6.5625 7.5625 A 1.0001 1.0001 0 1 0 8.25 8.625 C 8.7942179 7.740646 10.701734 6.434394 13.09375 5.875 C 13.10453 5.87295 13.11421 5.87702 13.125 5.875 C 15.064267 5.5112859 17.031887 5.6468794 18.03125 6.03125 A 1.0040202 1.0040202 0 0 0 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> <p> For the PM<sub>10</sub>, the API is defined using the following formula (where <code class='code-snippet-inline'>c</code> is the concentration expressed in micrograms per cubicmeter (µg/<sub>m<sup>3</sup></sub>):<br> </p> <center> <code class='code-example'> if (c<=50) API=c<br> if (c>50 and c<=350) API=50+(c-50)*.5<br> if (c>350 and c<=420) API=200+(c-350)*.14286<br> if (c>420 and c<=500) API=300+(c-420)*1.25<br> if (c>500) API = 400+(c-500)<br> </code> </center> <p> The very good news is that this formula is very close to the US EPA <a href='http://www.gpo.gov/fdsys/pkg/FR-2013-01-15/pdf/2012-30946.pdf'>formula</a>, and actually even more strict on the breakpoints level. The set of graphs below give the visual comparison between the US EPA scale and the Malaysian API scale, for both PM<sub>10</sub> (left) and Ozone (right). </p> <table width=100%> <tr> <td style='text-align:center;'> <div id='us-my-pm10'></div> <tr> <td style='text-align:center;'> <div id='us-my-o3'></div> </table> <br> <p> As concerns the scale for Thailand, there is a very clear explaination available on <a href='http://aqmthai.com/aqi_info.php'>aqmthai.com</a>. And again, just like for Malaysia, the breakpoints used for the Thai AQI scale are more strict than the US EPA scale, making it an even more safe scale. </p> <table width=100% id='pm-table'> <tr> <td style='text-align:center;'> <div id='us-th-pm10'></div> <tr> <td style='text-align:center;'> <div id='us-th-o3'></div> </table> <p> Thailand is also having its own color code and AQI levels description, summurized from this table: </p> <br> <br> <table class='aqiCompareTable'><tr><th colspan=3>US EPA<th colspan=4>Thailand<tr><th>range<th>color<th>level<th>range<th>color<th>level<th>description<tr><td nowrap>0 .. 50<td><div style='background-color:#009966;width:30px;height:20px;'><div><td style='width:15%;'>Good<td nowrap rowspan=1>0 .. 50<td rowspan=1><div style='background-color:#50C9F4;width:30px;height:20px;'><div><td rowspan=1 style='width:15%;'>คุณภาพดี (high quality)<td rowspan=1 >ไม่มีผลกระทบต่อสุขภาพ (No health effects)</tr><tr><td nowrap>50 .. 100<td><div style='background-color:#ffde33;width:30px;height:20px;'><div><td style='width:15%;'>Moderate<td nowrap rowspan=1>50 .. 100<td rowspan=1><div style='background-color:#78C150;width:30px;height:20px;'><div><td rowspan=1 style='width:15%;'>คุณภาพปานกลาง (medium quality)<td rowspan=1 >ไม่มีผลกระทบต่อสุขภาพ (No health effects)</tr><tr><td nowrap>100 .. 150<td><div style='background-color:#ff9933;width:30px;height:20px;'><div><td style='width:15%;'>Unhealthy for Sensitive Groups<td nowrap rowspan=2>100 .. 200<td rowspan=2><div style='background-color:#FFF46B;width:30px;height:20px;'><div><td rowspan=2 style='width:15%;'>มีผลกระทบต่อสุขภาพ (there are health effects)<td rowspan=2 >ผู้ป่วยโรคระบบทางเดินหายใจ ควรหลีกเลี่ยงการออกกำลังภายนอกอาคาร<br>บุคคลทั่วไป โดยเฉพาะเด็กและผู้สูงอายุ ไม่ควรทำกิจกรรมภายนอกอาคารเป็นเวลานาน (Patients with respiratory depression. Avoid exercising outdoors. Visitors, especially children and the elderly. Avoid prolonged outdoor activities.)</tr><tr><td nowrap>150 .. 200<td><div style='background-color:#cc0033;width:30px;height:20px;'><div><td style='width:15%;'>Unhealthy</tr><tr><td nowrap>200 .. 300<td><div style='background-color:#660099;width:30px;height:20px;'><div><td style='width:15%;'>Very Unhealthy<td nowrap rowspan=1>200 .. 300<td rowspan=1><div style='background-color:#F89836;width:30px;height:20px;'><div><td rowspan=1 style='width:15%;'>มีผลกระทบต่อสุขภาพมาก (affects health)<td rowspan=1 >ผู้ป่วยโรคระบบทางเดินหายใจ ควรหลีกเลี่ยงกิจกรรมภายนอกอาคาร<br>บุคคลทั่วไป โดยเฉพาะเด็กและผู้สูงอายุ ควรจำกัดการออกกำลังภายนอกอาคาร (Patients with respiratory depression. Avoid outdoor activities. Visitors, especially children and the elderly. Should limit outdoor exercise)</tr><tr><td nowrap>300 .. 500<td><div style='background-color:#7e0023;width:30px;height:20px;'><div><td style='width:15%;'>Hazardous<td nowrap rowspan=2>300 .. 500<td rowspan=2><div style='background-color:#EC363A;width:30px;height:20px;'><div><td rowspan=2 style='width:15%;'>อันตราย (danger)<td rowspan=2 >บุคคลทั่วไป ควรหลีกเลี่ยงการออกกำลังภายนอกอาคาร<br>สำหรับผู้ป่วยโรคระบบทางเดินหายใจ ควรอยู่ภายในอาคาร (Visitors should avoid exercising outdoors. For patients with respiratory diseases. Should stay indoors)</tr></table><br> <br> <p> For now, the scale used to report Malaysian monitoring stations on the <a href='/home/'>World Air Quality Index project</a> is based on the Malaysia API, and, considering that the API scale is almost similar to the US EPA scale, we do believe that this is not a problem as such. Regarding the scale for Thailand, the values published on the <a href='/home/'>World Air Quality Index project</a> for the monitoring stations in Thailand are based on the US EPA scale. </p> <p> Note that both countries are only providing 24 averaged values for the PM<sub>10</sub>, and as explained in <a href='/faq/2015-03-15/air-quality-nowcast-a-beginners-guide/'> this post</a>, using averaged values does not give a proper feedback on the current air pollution level. Fortunately, this is something which will change in the future, and both countries will start at some point of provide instant hourly readings too. </p> <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 1.03125 9.03125 C 1.0536237 9.2185949 1.1014372 9.4156735 1.15625 9.59375 C 1.4590854 10.826485 2.2046296 11.91918 3.21875 12.78125 C 4.0779092 13.511593 5.1369309 14.083861 6.3125 14.53125 A 1.0001 1.0001 0 0 0 6.53125 14.9375 C 8.1339345 16.910035 12.101162 19.118434 18.1875 18.59375 A 1.0043849 1.0043849 0 0 0 18 16.59375 C 14.906411 16.860439 12.500325 16.269357 10.78125 15.5 C 14.30154 15.772761 18.245209 15.070028 21.71875 12.96875 A 1.0021949 1.0021949 0 1 0 20.6875 11.25 C 16.887924 13.548509 12.317006 14.000584 8.78125 13.21875 C 8.6725971 13.194724 8.5753958 13.151278 8.46875 13.125 C 10.108287 13.189898 11.88322 13.060799 13.6875 12.6875 C 16.718701 12.060355 19.36029 10.886006 21.21875 9.4375 C 23.067114 7.9968631 24.272087 6.1533076 23.875 4.21875 C 23.8732 4.20861 23.8769 4.197602 23.875 4.1875 C 23.513143 2.2541955 21.685558 1.0369822 19.4375 0.4375 C 18.307598 0.13619269 17.031654 -0.02489364 15.65625 -0.03125 z M 15.65625 1.96875 C 16.883971 1.97489 18.004902 2.1263073 18.9375 2.375 C 20.802695 2.8723854 21.754612 3.7133252 21.90625 4.5625 A 1.0001 1.0001 0 0 0 21.9375 4.625 C 22.12047 5.4788616 21.54154 6.6735055 20 7.875 C 18.45846 9.0764945 16.081299 10.145895 13.3125 10.71875 C 10.546306 11.291066 7.7660826 11.269646 5.8125 10.78125 C 4.8357087 10.537052 4.0847823 10.157122 3.625 9.78125 C 3.3682882 9.5713881 3.1893221 9.3858538 3.09375 9.1875 C 3.0413411 8.9743851 3.0082478 8.7545393 3 8.53125 C 3.0633474 7.4789308 3.7648202 6.2771492 5.1875 5.15625 C 6.6815884 3.9790894 8.91349 2.9489331 11.6875 2.375 C 13.071248 2.0887073 14.428529 1.9626064 15.65625 1.96875 z M 15.96875 3.65625 C 14.93792 3.617106 13.843984 3.69192 12.71875 3.90625 A 1.0001 1.0001 0 0 0 12.6875 3.9375 C 9.8940815 4.582135 7.6159262 5.8506824 6.5625 7.5625 A 1.0001 1.0001 0 1 0 8.25 8.625 C 8.7942179 7.740646 10.701734 6.434394 13.09375 5.875 C 13.10453 5.87295 13.11421 5.87702 13.125 5.875 C 15.064267 5.5112859 17.031887 5.6468794 18.03125 6.03125 A 1.0040202 1.0040202 0 0 0 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> <p> Last, and not the least, there is no PM<sub>2.5</sub> data for Thailand and Malaysia. Modernizing the monitoring network with PM<sub>2.5</sub> sensors can have a significant cost and takes a lot of time. So, while waiting for the respective governments to make the investments needed, it might be worth to considering using our innovative proposal for <a href='/images/baq2014/aqicn-affordable_aqi_sensors-baq2014.pdf'> Improving Air Quality Measurements using Affordable and low-cost Sensors</a>, which we did for the <a href='/faq/2014-10-06/clean-air-initiative-and-the-better-air-quality-conference-2014/'>BAQ 2014</a> conference. </p> <br> <br> <link rel='stylesheet' href='/images-static/flags.css/css/flag-icon.min.css' /> <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 1.03125 9.03125 C 1.0536237 9.2185949 1.1014372 9.4156735 1.15625 9.59375 C 1.4590854 10.826485 2.2046296 11.91918 3.21875 12.78125 C 4.0779092 13.511593 5.1369309 14.083861 6.3125 14.53125 A 1.0001 1.0001 0 0 0 6.53125 14.9375 C 8.1339345 16.910035 12.101162 19.118434 18.1875 18.59375 A 1.0043849 1.0043849 0 0 0 18 16.59375 C 14.906411 16.860439 12.500325 16.269357 10.78125 15.5 C 14.30154 15.772761 18.245209 15.070028 21.71875 12.96875 A 1.0021949 1.0021949 0 1 0 20.6875 11.25 C 16.887924 13.548509 12.317006 14.000584 8.78125 13.21875 C 8.6725971 13.194724 8.5753958 13.151278 8.46875 13.125 C 10.108287 13.189898 11.88322 13.060799 13.6875 12.6875 C 16.718701 12.060355 19.36029 10.886006 21.21875 9.4375 C 23.067114 7.9968631 24.272087 6.1533076 23.875 4.21875 C 23.8732 4.20861 23.8769 4.197602 23.875 4.1875 C 23.513143 2.2541955 21.685558 1.0369822 19.4375 0.4375 C 18.307598 0.13619269 17.031654 -0.02489364 15.65625 -0.03125 z M 15.65625 1.96875 C 16.883971 1.97489 18.004902 2.1263073 18.9375 2.375 C 20.802695 2.8723854 21.754612 3.7133252 21.90625 4.5625 A 1.0001 1.0001 0 0 0 21.9375 4.625 C 22.12047 5.4788616 21.54154 6.6735055 20 7.875 C 18.45846 9.0764945 16.081299 10.145895 13.3125 10.71875 C 10.546306 11.291066 7.7660826 11.269646 5.8125 10.78125 C 4.8357087 10.537052 4.0847823 10.157122 3.625 9.78125 C 3.3682882 9.5713881 3.1893221 9.3858538 3.09375 9.1875 C 3.0413411 8.9743851 3.0082478 8.7545393 3 8.53125 C 3.0633474 7.4789308 3.7648202 6.2771492 5.1875 5.15625 C 6.6815884 3.9790894 8.91349 2.9489331 11.6875 2.375 C 13.071248 2.0887073 14.428529 1.9626064 15.65625 1.96875 z M 15.96875 3.65625 C 14.93792 3.617106 13.843984 3.69192 12.71875 3.90625 A 1.0001 1.0001 0 0 0 12.6875 3.9375 C 9.8940815 4.582135 7.6159262 5.8506824 6.5625 7.5625 A 1.0001 1.0001 0 1 0 8.25 8.625 C 8.7942179 7.740646 10.701734 6.434394 13.09375 5.875 C 13.10453 5.87295 13.11421 5.87702 13.125 5.875 C 15.064267 5.5112859 17.031887 5.6468794 18.03125 6.03125 A 1.0040202 1.0040202 0 0 0 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='color:#444;background-color:#eee;padding:10px;margin:10px;border:1px dashed black;'> <b>Note</b>: This article is part of a series on Worldwide Air Quality scales. <br> <br> For more information about specific countries or continent, please refer to those articles: <a href='/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand/'> <div class='flag flag-icon-background flag-icon-th' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-my' style='width:22px;height:12px;display:inline-block;'></div> Thailand and Malysia </a> - <a href='/faq/2015-05-15/india-national-air-quality-index/'> <div class='flag flag-icon-background flag-icon-in' style='width:22px;height:12px;display:inline-block;'></div> India </a> - <a href='/faq/2015-03-20/a-comparison-of-worldwide-air-quality-scales-part-1/'> <div class='flag flag-icon-background flag-icon-cn' style='width:22px;height:12px;display:inline-block;'></div> China </a> - <a href='/faq/2015-06-03/overview-of-hong-kongs-air-quality-health-index/'> <div class='flag flag-icon-background flag-icon-hk' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-ca' style='width:22px;height:12px;display:inline-block;'></div> Hong Kong / Canada (Air Quality Health Index) </a> - <a href='/faq/2015-05-30/air-quality-forecast-in-south-america/'> <div class='flag flag-icon-background flag-icon-br' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-co' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-ec' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-pe' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-cl' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-mx' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-ar' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-uy' style='width:22px;height:12px;display:inline-block;'></div> <div class='flag flag-icon-background flag-icon-pr' style='width:22px;height:12px;display:inline-block;'></div> South America </a> - <a href='/faq/2014-09-06/australian-air-quality-comparison-with-the-us-epa-aqi-scale/'> <div class='flag flag-icon-background flag-icon-au' style='width:22px;height:12px;display:inline-block;'></div> Australia </a> - <a href='/faq/2015-07-16/air-quality-scale-in-quebec-and-montreal/'> <div class='flag flag-icon-background flag-icon-ca' style='width:22px;height:12px;display:inline-block;'></div> Quebec and Montreal </a> - <a href='/faq/2013-06-25/singapore-psi-and-pm25-aqi-why-is-there-a-difference-between-the-two-readings/'> <div class='flag flag-icon-background flag-icon-sg' style='width:22px;height:12px;display:inline-block;'></div> Singapore </a> - <a href='/faq/2015-09-03/air-quality-scale-in-poland/'> <div class='flag flag-icon-background flag-icon-pl' style='width:22px;height:12px;display:inline-block;'></div> Poland </a> - <a href='/faq/2015-07-18/real-time-air-quality-monitoring-in-indonesia/'> <div class='flag flag-icon-background flag-icon-id' style='width:22px;height:12px;display:inline-block;'></div> Indonesia </a>. <p> For information about the 24 hours averaging used or Ozone and Particulate Matter (PM<sub>2.5</sub>), please refer to those two articles: <a href='/faq/2015-05-18/ground-ozone-air-quality-index-update-with-instant-cast/'>Ground Ozone Index</a> - <a href='/faq/2015-03-15/air-quality-nowcast-a-beginners-guide/'>PM<sub>2.5</sub> Instant Cast</a> </p> </div> <div id='x-pm10-all'></div> <br> <script src="/jscripts/forecast/d3.v3.min.js"></script> <script src='/air/view/faq/images/aqi-scales/scales-viewer.min.js?_=1555547488'></script><link href='/air/view/faq/images/aqi-scales/scales-viewer.css?_=1555547488' rel='stylesheet'/> <script type="text/javascript"> function doInitPage() { var width = document.getElementById("pm-table").clientWidth * .95; var scales={"eu":{"standard":{"epa":"European Environment Agency","url":"http:\/\/www.obsairve.eu\/content\/knowledge\/caqi","unit":["CAQI","Common Air Quality Index"]},"levels":[{"range":25,"title":"Very Low","color":"#5ec569","description":"Air quality is ideal for outdoor activities"},{"range":50,"title":"Low","color":"#b2d744","description":"Air quality is acceptable for outdoor activities."},{"range":75,"title":"Medium","color":"#f2c500","description":"No need to modify your usual outdoor activities unless you experience symptoms such as coughs and throat irritation."},{"range":100,"title":"High","color":"#fe8d00","description":"Consider reducing or postponing strenuous outdoor activities if you experience symptoms such as cough and throat irritation."},{"range":1000,"title":"Very High","color":"#fa0067","description":"Reduce or postpone strenuous outdoor activities, especially if you have symptoms such as coughing and throat irritation.","textcolor":"#ffffff"}],"units":{"o3":"mg\/m3","no2":"ug\/m3","so2":"ug\/m3","co":"mg\/m3"},"pm25":[[25,15],[50,30],[75,50],[100,100],[400,400]],"pm10":[[25,25],[50,50],[75,90],[100,180],[400,720]],"o3":[[25,60],[50,120],[75,180],[100,240],[500,1200]]},"pl":{"standard":{"epa":"Minister of Environment in Poland","url":"http:\/\/sojp.wios.warszawa.pl\/index.php?page=ggg","unit":["IJP","Indeks Jako\u015bci Powietrza"]},"levels":[{"range":1,"title":"Bardzo dobry","color":"#00ccff","description":"Jako\u015bc powietrza jest dobra. 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Avoid prolonged outdoor activities.)"},{"range":300,"title":"\u0e21\u0e35\u0e1c\u0e25\u0e01\u0e23\u0e30\u0e17\u0e1a\u0e15\u0e48\u0e2d\u0e2a\u0e38\u0e02\u0e20\u0e32\u0e1e\u0e21\u0e32\u0e01 (affects health)","color":"#F89836","description":"\u0e1c\u0e39\u0e49\u0e1b\u0e48\u0e27\u0e22\u0e42\u0e23\u0e04\u0e23\u0e30\u0e1a\u0e1a\u0e17\u0e32\u0e07\u0e40\u0e14\u0e34\u0e19\u0e2b\u0e32\u0e22\u0e43\u0e08 \u0e04\u0e27\u0e23\u0e2b\u0e25\u0e35\u0e01\u0e40\u0e25\u0e35\u0e48\u0e22\u0e07\u0e01\u0e34\u0e08\u0e01\u0e23\u0e23\u0e21\u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01\u0e2d\u0e32\u0e04\u0e32\u0e23<br>\u0e1a\u0e38\u0e04\u0e04\u0e25\u0e17\u0e31\u0e48\u0e27\u0e44\u0e1b \u0e42\u0e14\u0e22\u0e40\u0e09\u0e1e\u0e32\u0e30\u0e40\u0e14\u0e47\u0e01\u0e41\u0e25\u0e30\u0e1c\u0e39\u0e49\u0e2a\u0e39\u0e07\u0e2d\u0e32\u0e22\u0e38 \u0e04\u0e27\u0e23\u0e08\u0e33\u0e01\u0e31\u0e14\u0e01\u0e32\u0e23\u0e2d\u0e2d\u0e01\u0e01\u0e33\u0e25\u0e31\u0e07\u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01\u0e2d\u0e32\u0e04\u0e32\u0e23 (Patients with respiratory depression. Avoid outdoor activities. Visitors, especially children and the elderly. Should limit outdoor exercise)"},{"range":500,"title":"\u0e2d\u0e31\u0e19\u0e15\u0e23\u0e32\u0e22 (danger)","color":"#EC363A","description":"\u0e1a\u0e38\u0e04\u0e04\u0e25\u0e17\u0e31\u0e48\u0e27\u0e44\u0e1b \u0e04\u0e27\u0e23\u0e2b\u0e25\u0e35\u0e01\u0e40\u0e25\u0e35\u0e48\u0e22\u0e07\u0e01\u0e32\u0e23\u0e2d\u0e2d\u0e01\u0e01\u0e33\u0e25\u0e31\u0e07\u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01\u0e2d\u0e32\u0e04\u0e32\u0e23<br>\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e1c\u0e39\u0e49\u0e1b\u0e48\u0e27\u0e22\u0e42\u0e23\u0e04\u0e23\u0e30\u0e1a\u0e1a\u0e17\u0e32\u0e07\u0e40\u0e14\u0e34\u0e19\u0e2b\u0e32\u0e22\u0e43\u0e08 \u0e04\u0e27\u0e23\u0e2d\u0e22\u0e39\u0e48\u0e20\u0e32\u0e22\u0e43\u0e19\u0e2d\u0e32\u0e04\u0e32\u0e23 (Visitors should avoid exercising outdoors. For patients with respiratory diseases. Should stay indoors)"}],"pm10":[{"aqi":50,"conc":40,"color":"#50C9F4"},{"aqi":100,"conc":120,"color":"#78C150"},{"aqi":150,"conc":235,"color":"#FFF46B"},{"aqi":200,"conc":350,"color":"#FFF46B"},{"aqi":300,"conc":420,"color":"#F89836"},{"aqi":500,"conc":600,"color":"#EC363A"}],"o3":[{"aqi":50,"conc":0.051,"color":"#50C9F4"},{"aqi":100,"conc":0.1,"color":"#78C150"},{"aqi":150,"conc":0.151,"color":"#FFF46B"},{"aqi":200,"conc":0.203,"color":"#FFF46B"},{"aqi":300,"conc":0.405,"color":"#F89836"},{"aqi":500,"conc":0.611,"color":"#EC363A"}]},"mx":{"standard":{"epa":"Sistema de Monitoreo Atmosf\u00e9rico de la Ciudad de M\u00e9xico.","url":"http:\/\/www.sedema.df.gob.mx\/padla\/index.php?option=com_content&view=article&id=331:nadf-009-aire-2006&catid=53:normas-ambientales-del-distrito-federal&Itemid=87","unit":["IMECA","\u00cdndice Metropolitano de la Calidad del Aire"]},"levels":[{"range":50,"title":"Buena","color":"#97ca03","description":"La calidad del aire se considera como satisfactoria y la contaminaci\u00f3n del aire tiene poco o nulo riesgo para la salud"},{"range":100,"title":"Regular","color":"#ffff19","description":"La calidad del aire es aceptable, sin embargo algunos contaminantes pueden tener un efecto moderado en la salud para un peque\u00f1o grupo de personas que presentan una gran sensibilidad a algunos"},{"range":150,"title":"Mala","color":"#ff9e19","description":"Aalgunos grupos sensibles pueden experimentar efectos en la salud. Hay algunas personas que pueden presentar efectos a concentraciones menores que el resto de la poblaci\u00f3n, como es el caso de personas con problemas respiratorios o card\u00edacos, los ni\u00f1os y ancianos. El p\u00fablico en general puede no presentar riesgos cuando el Imeca est\u00e1 en este intervalo."},{"range":200,"title":"Muy mala","color":"#ff1919","description":"Toda la poblaci\u00f3n experimenta efectos negativos en la salud. Los miembros de grupos sensibles pueden presentar molestias graves."},{"range":300,"title":"Extremadamenta mala","color":"#9e359e","description":"La poblaci\u00f3n en general experimenta problemas graves de la salud."}],"pm25":[{"aqi":50,"conc":15.5,"color":"#009966"},{"aqi":100,"conc":40.5,"color":"#ffde33"},{"aqi":150,"conc":65.5,"color":"#ff9933"},{"aqi":200,"conc":150.5,"color":"#cc0033"},{"aqi":300,"conc":224.62686567164178,"color":"#660099"},{"aqi":500,"conc":374,"color":"#7e0023"}],"pm10":[{"aqi":50,"conc":60,"color":"#009966"},{"aqi":100,"conc":120,"color":"#ffde33"},{"aqi":150,"conc":220,"color":"#ff9933"},{"aqi":200,"conc":320,"color":"#cc0033"},{"aqi":300,"conc":480,"color":"#660099"},{"aqi":500,"conc":800,"color":"#7e0023"}],"o3":[{"aqi":50,"conc":0.055,"color":"#009966"},{"aqi":100,"conc":0.11,"color":"#ffde33"},{"aqi":150,"conc":0.165,"color":"#ff9933"},{"aqi":200,"conc":0.22,"color":"#cc0033"},{"aqi":300,"conc":0.33,"color":"#660099"},{"aqi":500,"conc":0.55,"color":"#7e0023"}]},"ec":{"standard":{"epa":"Ministerio del Ambiente Rep\u00fablica del Ecuador","url":"http:\/\/www.quitoambiente.gob.ec\/","unit":["IQCA","\u00cdndice Quite\u00f1o de la Calidad del Aire"]},"levels":[{"range":50,"title":"Deseable","color":"#ffffff","description":"\u00d3ptima"},{"range":100,"title":"Aceptable","color":"#00ff00","description":"Buena"},{"range":200,"title":"Precauci\u00f3n","color":"#c0c0c0","description":"No saludable para individuos extremadamente sensibles (enfermos cr\u00f3nicos y convalecientes). 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A popula\u00e7\u00e3o, em geral, n\u00e3o \u00e9 afetada."},{"range":120,"title":"Ruim","color":"#ffaa71","description":"Toda a popula\u00e7\u00e3o pode apresentar sintomas como tosse seca, cansa\u00e7o, ardor nos olhos, nariz e garganta. Pessoas de grupos sens\u00edveis (crian\u00e7as, idosos e pessoas com doen\u00e7as respirat\u00f3rias e card\u00edacas) podem apresentar efeitos mais s\u00e9rios na sa\u00fade."},{"range":200,"title":"Muito Ruim","color":"#ff0f03","description":"Toda a popula\u00e7\u00e3o pode apresentar agravamento dos sintomas como tosse seca, cansa\u00e7o, ardor nos olhos, nariz e garganta e ainda falta de ar e respira\u00e7\u00e3o ofegante. Efeitos ainda mais graves \u00e0 sa\u00fade de grupos sens\u00edveis (crian\u00e7as, idosos e pessoas com doen\u00e7as respirat\u00f3rias e card\u00edacas)."},{"range":500,"title":"P\u00e9ssima","color":"#990066","description":"Toda a popula\u00e7\u00e3o pode apresentar s\u00e9rios riscos de manifesta\u00e7\u00f5es de doen\u00e7as respirat\u00f3rias e cardiovasculares. Aumento de mortes prematuras em pessoas de grupos sens\u00edveis."}],"pm25":[{"aqi":40,"conc":25,"color":"#00cc00"},{"aqi":80,"conc":50,"color":"#ffff00"},{"aqi":120,"conc":75,"color":"#ffaa71"},{"aqi":200,"conc":125,"color":"#ff0f03"},{"aqi":500,"conc":8888,"color":"#990066"}],"pm10":[{"aqi":40,"conc":50,"color":"#00cc00"},{"aqi":80,"conc":100,"color":"#ffff00"},{"aqi":120,"conc":150,"color":"#ffaa71"},{"aqi":200,"conc":250,"color":"#ff0f03"},{"aqi":500,"conc":8888,"color":"#990066"}]},"in":{"standard":{"epa":"Ministry of environment & forests, government of India","url":"http:\/\/envfor.nic.in\/content\/national-air-quality-index","urls":["http:\/\/iitk.ac.in\/new\/national-air-quality-index"],"unit":["NAQI","National Air Quality Index"]},"units":{"o3":"ug\/m3","no2":"ug\/m3","so2":"ug\/m3","co":"mg\/m3"},"levels":[{"range":50,"title":"Good","color":"#00c564"},{"range":100,"title":"Satisfactory","color":"#8ddf5f"},{"range":200,"title":"Moderate","color":"#faff00"},{"range":300,"title":"Poor","color":"#ffa600"},{"range":400,"title":"Very Poor","color":"#ff0000"},{"range":500,"title":"Severe","color":"#de0000"}],"o3_8":[{"aqi":50,"conc":0.05,"color":"#00c564"},{"aqi":100,"conc":0.1,"color":"#8ddf5f"},{"aqi":200,"conc":0.168,"color":"#faff00"},{"aqi":300,"conc":0.208,"color":"#ffa600"}],"o3":[{"aqi":300,"conc":0.208,"skip":true},{"aqi":400,"conc":0.748,"color":"#ff0000"},{"aqi":500,"conc":0.94,"color":"#de0000"}],"pm25":[{"aqi":50,"conc":30,"color":"#00c564"},{"aqi":100,"conc":60,"color":"#8ddf5f"},{"aqi":200,"conc":90,"color":"#faff00"},{"aqi":300,"conc":120,"color":"#ffa600"},{"aqi":400,"conc":250,"color":"#ff0000"},{"aqi":500,"conc":380,"color":"#de0000"}],"pm10":[{"aqi":50,"conc":50,"color":"#00c564"},{"aqi":100,"conc":100,"color":"#8ddf5f"},{"aqi":200,"conc":250,"color":"#faff00"},{"aqi":300,"conc":350,"color":"#ffa600"},{"aqi":400,"conc":430,"color":"#ff0000"},{"aqi":500,"conc":510,"color":"#de0000"}],"no2_24":[[50,40],[100,80],[200,180],[300,280],[400,400],[500,520]],"so2_24":[[50,40],[100,80],[200,380],[300,800],[400,1600],[500,2400]]}}; compareScales("us-my-pm10", [{ values: scales.us.pm10, title: "US EPA", flag: "us" }, { values: scales.my.pm10, title: "MY API", flag: "my" } ], 600, width, "mg/m3", "PM10 scales comparison" ); compareScales("us-my-o3", [{ values: scales.us.o3, title: "US EPA", flag: "us" }, { values: scales.my.o3, title: "MY API", flag: "my" } ], .6, width, "ppm", "Ozone scales comparison" ); compareScales("us-th-pm10", [{ values: scales.us.pm10, title: "US EPA", flag: "us" }, { values: scales.th.pm10, title: "Thailand", flag: "th" }, ], 600, width, "mg/m3", "PM10 scales comparison" ); compareScales("us-th-o3", [{ values: scales.us.o3, title: "US EPA", flag: "us" }, { values: scales.th.o3, title: "Thailand", flag: "th" } ], .6, width, "ppm", "Ozone scales comparison" ); compareScales("pm10-all", [{ values: scales.us.pm10, title: "US EPA", flag: "us" }, { values: scales.th.pm10, title: "Thailand", flag: "th" }, { values: scales.my.pm10, title: "Malaysia", flag: "my" }, { values: scales.tw.pm10, title: "Taiwan", flag: "tw" }, { values: scales.sg.pm10, title: "Singapore", flag: "sg" }, { values: scales.cn.pm10, title: "China", flag: "cn" }, { values: scales.cl.pm10, title: "Chile", flag: "cl" }, { values: scales.mx.pm10, title: "Mexico", flag: "mx" }, { values: scales.br.pm10, title: "Brazil", flag: "br" }, { values: scales.ar.pm10, title: "Argentina", flag: "ar" }, ], 600, width, "mg/m3", "PM10 scales comparison" ); } doInitPage(); </script> </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() . "'>Click here to see all the FAQ entries</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/'>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/'>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/'>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([])</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='h1header2' style='padding:2px;font-family:"Noto Serif",Cambria,"Palatino Linotype","Book Antiqua","URW Palladio L",serif;;'>About the Air Quality and Pollution Measurement:</div></h1></div><script type='text/javascript'> ; if (!isMobileUA) { fitLine('#h1header2',.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>About the Air Quality Levels<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 cautionary"><thead><tr><td>AQI</td><td>Air Pollution Level</td><td>Health Implications</td><td>Cautionary Statement (for PM2.5)</td></tr></thead><tr style="background-color:#009966;"><td class='aqiwtxt' nowrap="true">0 - 50</td><td class='aqiwtxt'>Good</td><td class='aqiwtxt'>Air quality is considered satisfactory, and air pollution poses little or no risk</td><td class='aqiwtxt'>None</td></tr><tr style="background-color:#ffde33" class='aqibtxt'><td class='aqibtxt' nowrap="true">51 -100</td><td class='aqibtxt'>Moderate</td><td class='aqibtxt'>Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.</td><td class='aqibtxt'>Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.</td></tr><tr style="background-color:#ff9933;"><td class='aqibtxt' nowrap="true">101-150</td><td class='aqibtxt'>Unhealthy for Sensitive Groups</td><td class='aqibtxt'>Members of sensitive groups may experience health effects. The general public is not likely to be affected.</td><td class='aqibtxt'>Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.</td></tr><tr style="background-color:#cc0033;"><td class='aqiwtxt' nowrap="true">151-200</td><td class='aqiwtxt'>Unhealthy</td><td class='aqiwtxt'>Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects</td><td class='aqiwtxt'>Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion</td></tr><tr style="background-color:#660099;"><td class='aqiwtxt' nowrap="true">201-300</td><td class='aqiwtxt'>Very Unhealthy</td><td class='aqiwtxt'>Health warnings of emergency conditions. The entire population is more likely to be affected.</td><td class='aqiwtxt'>Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.</td></tr><tr style="background-color:#7e0023;"><td class='aqiwtxt' nowrap="true">300+</td><td class='aqiwtxt'>Hazardous</td><td class='aqiwtxt'>Health alert: everyone may experience more serious health effects</td><td class='aqiwtxt'>Everyone should avoid all outdoor exertion</td></tr></table></div><br>To know more about Air Quality and Pollution, check the <a href='http://en.wikipedia.org/wiki/Air_quality'>wikipedia Air Quality topic</a> or the <a href='http://www.airnow.gov/index.cfm?action=aqibasics.aqi'>airnow guide to Air Quality and Your Health</a>.<br><br>For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check <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>Usage Notice</b>: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. 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{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>Settings</h2></div><br><center><div id='settings-lang'>Language Settings: <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/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand/' selected>English</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//cn' >简体中文 - Chinese</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//jp' >日本 - Japanese</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//es' >español - Spanish</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//kr' >한국의 - Korean</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//ru' >русский - Russian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//hk' >繁體中文 - Traditional Chinese</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//fr' >Francais - French</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//pl' >Polski - Polish</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//de' >Deutsch - German</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//pt' >Português - Portuguese</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//vn' >Tiếng Việt - Vietnamese</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//it' >Italiano - Italian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//id' >bahasa Indonesia - Indonesian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//nl' >Nederlands - Dutch</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//fa' >فارسی - Persian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//th' >ภาษาไทย - Thai</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//hu' >Magyar - Hungarian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//el' >Ελληνικά - Greek</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//ro' >Română - Romanian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//bg' >български - Bulgarian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//ur' >اردو - Urdu</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//hi' >हिंदी - Hindi</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//ar' >العربية - Arabic</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//sr' >Српски - Serbian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//bn' >বাংলা - Bangla</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//bs' >босански - Bosnian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//hr' >hrvatski - Croatian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//tr' >Türkçe - Turkish</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//uk' >українська - Ukrainian</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//cs' >čeština - Czech</option><option value='https://aqicn.org/faq/2015-05-02/south-asian-air-quality-scales-malaysia-and-thailand//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 ? "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',"Air quality is considered satisfactory, and air pollution poses little or no risk");aqi18n.register('aqi-level-0-50',"Good");aqi18n.register('aqi-implication-50-100',"Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.");aqi18n.register('aqi-level-50-100',"Moderate");aqi18n.register('aqi-implication-100-150',"Members of sensitive groups may experience health effects. The general public is not likely to be affected.");aqi18n.register('aqi-level-100-150',"Unhealthy for sensitive groups");aqi18n.register('aqi-level-100-150-html',"<div style='font-size:66%'>Unhealthy for sensitive groups<\/div>");aqi18n.register('aqi-implication-150-200',"Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects");aqi18n.register('aqi-level-150-200',"Unhealthy");aqi18n.register('aqi-implication-200-300',"Health warnings of emergency conditions. 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