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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.

Very easy to set up, they only require a WIFI access point and a USB power supply. Once connected, air pollution levels are reported instantaneously and in real-time on our maps

ECUADOR STAMPS CANCELED USED LOT 22730

Home Air Purifiers

Protection Masks & Respirators

Home Air Purifiers

Personal Air Quality Monitors

DIY Air Sensors

Professional Air Quality Monitoring Stations

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.

Current		Past 48 hours data	Min	Max
PM2.5 AQI	112		46	174
PM10 AQI	55		23	84
O3 AQI	14		1	19
NO2 AQI	14		11	39
SO2 AQI	5		1	9
CO AQI	8		3	15
Temp.	-2		-12	3
Pressure	1032		1018	1034
Humidity	42		20	89
Wind	3		0	4

Playskool 1976 BRISTLE BLOCKS w/Wheels #806 Original Storage Can

Playskool 1976 BRISTLE BLOCKS w/Wheels #806 Original Storage Can

Item specifics

Playskool 1976 BRISTLE BLOCKS w/Wheels #806 Original Storage Can

About This Project

air quality research

Frequently Asked Questions

Credits

Settings

	In order to install the Beijing 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/?1451".
	Then click on this icon to install the widget as an application directly accessible from your iPhone homescreen.