Beijing Air Quality Index

Good(Class B)
(April 21st,2014 ,07:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Air quality is acceptable,but maybe unhealthy to a small number of sensitive groups.
Suggestion:Unusually sensitive people should consider reducing prolonged or heavy exertion.

Beijing PM2.5

1-hour PM2.5: 55.5μg/m3,24-hour PM2.5: 53.56μg/m3.
1-hour PM2.5 ranks #97 in China by ascending,total 190 cities.
1-hour PM10: 84.17μg/m3,24-hour PM10: 83.3μg/m3.

All Air Monitoring Sites Of Beijing City(Real Time Data)

Indicators instruction:
AQI=Air Quality Index; PM2.5=Particles less than 2.5 micrometers in diameter; PM10=Particles between 2.5 and 10 micrometers in diameter; CO=carbon monoxide;NO2=nitrogen dioxide;SO2=sulfur dioxide;O3-1h=Ozone 1-hour average;O3-8h=Ozone 8-hour average;

Unit: μg/m3(CO=mg/m3)
12 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 189661150.977825Good
Site 29974990.879987Good
Site 37252780.684924Good
Site 47555951.196686Good
Site 57857740.968458Good
Site 6102761510.9961522Lightly Polluted
Site 792681061.399924Good
Site 84027400.11886470Excellent
Site 95035500.54142636Excellent
Site 105438510.441144237Good
Site 11110831111.1981322Lightly Polluted
Site 125035400.55062626Excellent

Beijing AQI Ranking

Beijing AQI ranks #90 in China(total 190),defeat 21% cities.

Last 7 days rankings and AQI data of Beijing City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2014-04-20 #1278260840.63354811799Good
2014-04-19 #1528562840.77665159178Good
2014-04-18 #1771801361401.496517140115Moderately Polluted
2014-04-17 #151124941301.4067019118102Lightly Polluted
2014-04-16 #13088531160.77270139480Good
2014-04-15 #148118891390.9446116119112Lightly Polluted
2014-04-14 #1902752242621.8577633224189Heavily Polluted
Note :03-1h, O3-8h to 24 hours maximum, 24-hour average of other pollutants, daily AQI based on "Ambient Air Quality Index (AQI) Technology (Trial)" (HJ633-2012) published in the daily AQI standard calculations.