Lin'an City Hall, Hangzhou杭州市临安市临安市府大楼

City Hall, Hangzhou杭州市临安市市府大楼

No. 4 middle school, Hangzhou杭州市临安市第四中学

余杭镇一中, Hangzhou杭州市余杭镇一中

No.2 Middle School, Hangzhou杭州市富阳市镇二中

Fuyang monitoring station, Hangzhou杭州市富阳市富阳监测站

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Please note that Lin'an City Hall, Hangzhou monitoring station is now shutdown and will soon be removed from the station list.

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The GAIA air quality monitoring stations are using high-tech laser particle sensors to measure in real-time PM2.5 pollution, which is one of the most harmful air pollutants.

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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQI	Air Pollution Level	Health Implications	Cautionary Statement (for PM2.5)
0 - 50	Good	Air quality is considered satisfactory, and air pollution poses little or no risk	None
51 -100	Moderate	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.	Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150	Unhealthy for Sensitive Groups	Members of sensitive groups may experience health effects. The general public is not likely to be affected.	Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200	Unhealthy	Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects	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
201-300	Very Unhealthy	Health warnings of emergency conditions. The entire population is more likely to be affected.	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.
300+	Hazardous	Health alert: everyone may experience more serious health effects	Everyone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.

Usage Notice: 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. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.

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Lin'an City Hall, Hangzhou Air Pollution: Real-time Air Quality Index (AQI)

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Air quality historical data

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Download the real-time Air Quality Index Widget for:

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About the Air Quality and Pollution Measurement:

About This Project

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	In order to install the Lin'an City Hall, Hangzhou 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/?734".
	Then click on this icon to install the widget as an application directly accessible from your iPhone homescreen.