北京东城东四空气污染：实时PM2.5空气质量指数（AQI）

2017年01月10日: New post about “Nitrogen Dioxyde (NO₂) in our atmosphere”.

2016年10月8日: Registration is open for the November 7th CCA Coalition webinar on Air Quality, Climate Change and the New Urban Agenda: Taking Action at the City Level (Part 2). Register for free now on ccacoalition.org

2016年08月10日: New post about “Ozone AQI Scale update”.

2016年02月28日: New post about “Air Quality Forecasting in Northern India”.

2015年11月5日: New post about “A visual study of Wind impact on PM_2.5 Concentration”.

2015年10月28日: New post about “UNEP Air Quality Monitoring Station”.

2015年09月20日: Air Quality data is now available for Wellignton, New Zealand

2015年09月18日: New post about “Map Web Service: Real-time Air Quality Tile API”.

2015年09月6日: New post about “Ozone AQI: Using concentrations in milligrams or ppb?”.

2015年09月3日: New post about “Air Quality Scale in Poland”.

2015年09月1日: Air Quality data is now starting to be available for Italy

2015年07月28日: New post about “Air Quality Widget - New Improved Feed”.

2015年07月18日: Air Quality data is now availalbe for Indonesia

2015年07月16日: New post about “Air Quality Scale in Quebec and Montreal”.

2015年07月1日: New post about “Translation for Polish is now available”.

2015年06月20日: We apologize for the service break which happened during June 19^th ~ 20^th. The problem is now fixed, and service back to normal. We have received tons of support emails (thanks!), but might not be able to reply to all of them individually.

2015年06月8日: New post about “Wind and Air Pollution Forecast in Quito”.

2015年06月3日: New post about “香港的空气质量健康指数概览”.

2015年05月30日: New post about “空氣質量預報在南美”.

2015年05月18日: New post about “与Instant Cast地面臭氧AQI更新”.

2015年05月16日: New post about “World Health Organization: 2014 Air Pollution Ranking”.

2015年05月15日: New post about “Overview of India's National Air Quality Index”.

2015年05月10日: New post about “A comparison of Latin American Air Quality Scales”.

2015年05月2日: New post about “South Asian Air Quality Scales: Malaysia and Thailand”.

2015年04月28日: New post about “Real-time Air Quality in the Balkan Peninsula”.

2015年04月26日: New post about “NASA - Earth Observations and Tools for Air Quality Applications”.

2015年04月8日: New post about “Air Quality in Africa and Middle East”.

2015年03月23日: New post about “Air Quality Forecasting - How accurate can it be?”.

2015年03月20日: New post about “A comparison of worldwide Air Quality Scales - Part 1”.

2015年03月15日: New post about “A Beginner's Guide to Air Quality Instant-Cast and Now-Cast. ”.

2015年02月23日: New post about “South Asia Real-time Air Quality Monitoring Project”.

2015年02月15日: New post about “Satellite Air Quality monitoring: Introduction to the NASA WorldView”.

2015年02月8日: New post about “Visual recognising the Air Quality Index - a case applied to Hanoi”.

2014年10月28日: New post about “新安卓应用来了”.

2014年10月6日: This 2014 international Better Air Quality Conference pre-program is now announced. Check out the program here.

2014年09月6日: New post about “Australian Air Quality: Comparison with the US EPA AQI scale.”.

2014年08月1日: New post about “海尔空调箱：可提供有用的空气质量数据？”.

2014年07月28日: 新安卓应用可以下载了：点击链接查看新功能

2014年07月27日: New post about “新安卓应用来了”.

2014年07月21日: Windows Mobile 8手机应用程序现在可以从Microsoft Store下载。点击此链接获取更多信息

2014年07月12日: Chrome和Firefox的aqicn插件现在可以从谷歌和Mozilla商店下载。

2014年03月15日: 2014年3月29日，20：30-21：30，aqicn.org团队会参与地球一小时2014的活动。这一小时内，网站无法访问。

2013年12月28日: 新安卓应用v3.0可以下载了：点击链接查看新功能

2013年10月21日: New post about “Dylos 空气微粒计数器实验维护”.

2013年09月9日: New post about “修订PM_2.5 空气质量指数的断点”.

2013年09月8日: New post about “ Dylos 空气微粒计数器实验，第一部分”.

2013年09月5日: T一些亚洲的城市的空气质量指数换算公式更新了。欲了解更多信息，请检查修订PM_2.5 空气质量指数的断点.

2013年06月25日: New post about “Singapore PSI and PM_2.5 AQI: Why is there a difference between the two readings?”.

2013年06月23日: The Android Widget application for the whole Asia (incl. Singapore, Japan, Malaysia, Vietnam, India...) is now avaialble from the Google PlayStore.

2013年06月22日: Singapore PM2.5 based AQI is now updated on a hourly basis. Thanks to Singapore National Environment Agency for making this happen.
If you wonder why PM2.5 AQI is so relevant compared to PM10 (since PSI is only using PM10 data), please check the article about why is PM_2.5 often higher than PM₁₀.

2013年06月21日: We apologize for the slow update those last 2 days, due to a huge web traffic increase, partly due to the Singapore smog from Indonesia.
In order to improve the situation, we have upgraded our front-end web server to a high-performance server.

2013年06月4日: We apologize for the service breaks during the last days (Monday 3rd and Saturday 1st). The problem is due to our backend server.

2013年05月22日: Vietnam Air Quality information is now available for 3 cities: 河内 (Hà Nội) (Hà Nội), 岘港 (TP Đà Nẵng) (Đà Nẵng) and 芽庄 (Nha Trang) (Khánh Hoà) .

2013年05月20日: 沈阳 (沉阳) Air Quality information is now based on 3 stations. More information available in the faq.

2013年05月11日: The city geo-location system (i.e. city position on the map) has been updated to take into account a growing number of cities.
In case you notice any issue with the geo-location, such as any city wrongly located on the map, please inform us.

2013年05月6日: The Air Quality data information for Japan is progressively going back to normal. If you notice any issue, please contact us.

2013年02月7日: New post about “空气质量指示：已更新为美国环保署（EPA）AirNow 标准”.

2013年02月3日: New post about “口罩真的能够过滤像PM2.5 一样小的微粒物质吗？”.

2013年02月2日: New post about “为什么PM2.5的数值经常比PM10高？为什么还需要用PM10？”.

2013年01月19日: 上海 main AQI data is now based on the maximum of the PM2.5 AQI readings for the 3 stations 上海美国总领事馆 (Shanghai US Consulate),
静安监测站 (Jing'an Monitoring Station) and 上海师范专科学校附属小学 (lúwān shī zhuān fùxiǎo) (Same as for Beijing, Guangzhou and Chengdu; done to minimize maintenance downtime)
If you want to compare the relative AQI readings for those 3 stations, consult the FAQ section

2013年01月12日: PM2.5 data is available for 11 new cities (太原, 呼和浩特, 沈阳, 合肥, 福州, 郑州, 长沙, 南宁, 海口, 拉萨, 乌鲁木齐)

2013年01月11日: 成都 main AQI data is now based on the maximum of the PM2.5 AQI readings for the 2 stations 成都美国总领事馆 (Chengdu US Consulate)
and 成都草堂寺 (Caotang Temple, Chengdu) (Same as for Beijing and Guangzhou; done to prevent from the 'no reading downtime')

2013年01月8日: PM2.5 data is available for 12 new cities (重庆, 天津, 西安, 大连, 厦门, 哈尔滨, 南昌, 长春, 昆明, 西宁, 兰州, 银川)

2012年12月30日: 广州 main AQI data is now based on the maximum of the PM2.5 AQI readings for the 2 stations
美国领事馆 - 广州中国 (Guangzhou US Consulate) and 广州荔湾西村 (Lìwān xicūn, Guangzhou) (Same as for Beijing; done to prevent from the 'no reading downtime')

2012年12月29日: PM2.5 real time data hourly is now avaialble Shandong province and Zhenjiang province

2012年12月28日: Since the Beijing US embassy PM2.5 is having 'no-reading' issues, the Beijing AQI data is now based on the maximum of the PM2.5 AQI readings for the 3 stations
北京美国大使馆 (Beijing US Embassy), 东城东四 (Dongcheng Dongsi) and 朝阳农展馆 (Chaoyang Agricultural Exhibition Hall).
If you only want to view the PM2.5 US embassy data, then use this link. If you want to compare the relative AQI readings for those 3 stations, consult the FAQ section

2012年12月8日: We are looking for help to improve the translations for Chinese, Cantonese, Korean, Russian and Japanese, as well as create tranlations for new languages.
If you can help for those translations, please contact us at this link.

2012年12月6日: PM2.5 real time data hourly is now avaialble Hebei province (38 places), Guangdong province (63 places), Jiangsu province (17 places),

2012年11月18日: PM2.5 real time data hourly is now avaialble for Wuhan, Ningbo and Shanghai

2012年10月7日: The MEP PM₁₀, NO₂ and SO₂ convertion formula from µg/m³ to AQI level has been updated to follow EPA standards.

2012年09月18日: PM2.5 real time data hourly is now avaialble for Beijing, Hong Kong and Shenzhen
Beijing, Shanghai, Guangzhou, Chengdu Air Pollution Indexes are now based the US Embassy real time twitter feeds.

2012年03月15日: The Beijing AmCham is organizing a session on 'Air Pollution and Health: What You Can Do to Minimize Risk?' on Thursday March 21st 2013. More information available here.

2012年03月11日: We apologize for the service break which happened from Sunday 23PM until today, Monday, 9PM. This break was due to our web hosting provider.

2012年02月21日: Our new back-end server roll-out is started - with the objective to improve the incoming traffic bandwidth. If you notice any strange issue, please contact us.

2012年02月7日: The Air Quality Designation is now updated to follow the EPA standard. Check the FAQ for more information...

2012年02月3日: 2 new entries posted in the faq section about Why is PM_2.5 often higher than PM₁₀ and Can masks really filter PM_2.5 particles?.
A problem has also been fixed in the server which prevented some of the android widgets from beeing updated. If you still see some problems with the Android widgets, please contact us.

查看所有过去的新闻，或检查常见问题。

iPhone & iPad

Android

Windows Phone

Windows PC

Google Chrome

Firefox

Wordpress

Cloud API

Click here to download the 东城东四 Air Quality plugin from the Chrome store.

https://chrome.google.com/webstore/detail/world-air-quality-index/hhhfnanaabgcafkmlplbifbhknnbmidl

Alternatively, in can you can not access the Chrome store, you can also download the ".crx" plugin file
from this link. In order to install the crx file by, you can follow those 3 steps:

Settings-Icon > Tools > Extensions
{ the 'three horizontal-bars' icon in the top-right corner }

Drag and drop the "crx" extension file onto the Extensions page from step 1
{ .crx file should likely be in your Downloads directory }

Install the aqicn Air Quality plugin

(More information from howtogeek.com/120743/how-to-install-extensions-from-outside-the-chrome-web-store/ or
stackoverflow.com/questions/9931906/crx-file-install-in-chrome )

Click here to download the 东城东四 Air Quality plugin from the Firefox store.

https://addons.mozilla.org/en-US/firefox/addon/aqicn/

In case you can not access the Firefox store, you can also download the ".xpi" add-on from this link.

In order to install the 东城东四 Air Quality Widget on your favorite iPhone or iPod device, just launch the internet browser from your device and open the web page: " http://ios.aqicn.org/?446".

Or just scan this QR-code:

Then click on this icon to install the widget as an application directly accessible from your iPhone homescreen.

windows mobile lumia 东城东四 real-time air quality application

You can download the 东城东四 Air Quality Widget for your favorite Windows Mobile 8 or 8.1, directly from the Microsoft application store:

" www.windowsphone.com/en-us/store/app/asia-air-quality/f3828278-b7a9-4e5f-9936-95a2e9b2db18".

In case you have problem to access the Store, you can directly download the ".xap" file from our server at this link:

https://aqicn.org/aqicn/gadget/winmo/?xap

In order to install the 东城东四 Air Quality Widget on your favorite Symbian device, just download the "东城东四Air.wgz" and install on your phone using Nokia Suite.

Download " 东城东四Air.wgz".

In order to install the 东城东四 Air Quality Widget on your Windows Desktop, just download the "东城东四.gadget" and let you be guided through the Windows installer.

Download "东城东四.gadget".

You can download the 东城东四 Air Quality Widget on your Android Device directly from the google app store.
(你可以从Google商店下载此应用).
In case the Android app store can not be accessed, you can also directly download the signed apk file.
(如果不能访问 Google应用商店，你也可以从我们的网站上直接下载APK文件)

当前		过去48小时内数据	最小	最大
PM2.5 AQI	82		17	167
PM10 AQI	40		30	85
O3 AQI	10		1	22
NO2 AQI	25		5	39
SO2 AQI	3		2	15
CO AQI	6		3	15
温度。	1		-7	1
空气压力	1025		1025	1032
湿度	26		21	49

空气质量指数	空气质量指数级别（状况）及表示颜色	对健康影响情况	建议采取的措施
0 - 50	一级（优）	空气质量令人满意，基本无空气污染	各类人群可正常活动
51 -100	二级（良）	空气质量可接受，但某些污染物可能对极少数异常敏感人群健康有较弱影响	极少数异常敏感人群应减少户外活动
101-150	三级（轻度污染）	易感人群症状有轻度加剧，健康人群出现刺激症状	儿童、老年人及心脏病、呼吸系统疾病患者应减少长时间、高强度的户外锻炼
151-200	四级（中度污染）	进一步加剧易感人群症状，可能对健康人群心脏、呼吸系统有影响	儿童、老年人及心脏病、呼吸系统疾病患者避免长时间、高强度的户外锻炼，一般人群适量减少户外运动
201-300	五级（重度污染）	心脏病和肺病患者症状显著加剧，运动耐受力降低，健康人群普遍出现症状	儿童、老年人及心脏病、肺病患者应停留在室内，停止户外运动，一般人群减少户外运动
300+	六级（严重污染）	健康人群运动耐受力降低，有明显强烈症状，提前出现某些疾病	儿童、老年人和病人应停留在室内，避免体力消耗，一般人群避免户外活动

东城东四空气污染：实时空气质量指数（AQI）

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