Beijing Air Quality Index

Lightly Polluted(Class C)
(September 22nd,2014 ,11:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Members of sensitive groups may experience health effects
Suggestion:People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.

Beijing PM2.5

1-hour PM2.5: 94.8μg/m3,24-hour PM2.5: 93.2μg/m3.
1-hour PM2.5 ranks #127 in China by ascending,total 190 cities.
1-hour PM10: 0μg/m3,24-hour PM10: 125.05μg/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 1148113-2.776325Lightly Polluted
Site 2135103-2.772839Lightly Polluted
Site 312595-2.372925Lightly Polluted
Site 4134102-1.9-4--Lightly Polluted
Site 5148113-2.662924Lightly Polluted
Site 612091-2.174327Lightly Polluted
Site 7---------
Site 811083-1.9453215Lightly Polluted
Site 99974-1.71722343Good
Site 1012091-2.1462217Lightly Polluted
Site 11---------
Site 1211083-1.93222123Lightly Polluted

Beijing AQI Ranking

Beijing AQI ranks #174 in China(total 190),defeat -53% cities.

Last 7 days rankings and AQI data of Beijing City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2014-09-21 #178124941131.7024616134112Lightly Polluted
2014-09-20 #1871641241681.198545191163Moderately Polluted
2014-09-19 #170112841200.935636139121Lightly Polluted
2014-09-18 #1538462950.716594149130Good
2014-09-17 #1727953900.726247857Good
2014-09-16 #1748438890.6016754543Good
2014-09-15 #915318540.39437610083Good
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.