Beijing Air Quality Index

Heavily Polluted(Class E)
(October 23rd,2014 ,10:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Exercise tolerance is reduced in people with heart and lung conditions;healthy people may exhibit symptoms.
Suggestion:People with heart or lung disease, older adults, and children should avoid all physical activity outdoors. Everyone else should avoid prolonged or heavy exertion.

Beijing PM2.5

1-hour PM2.5: 159.58μg/m3,24-hour PM2.5: 118.83μg/m3.
1-hour PM2.5 ranks #127 in China by ascending,total 190 cities.
1-hour PM10: 206μg/m3,24-hour PM10: 175.65μg/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 11551181893.4101426Moderately Polluted
Site 221316323031171827Heavily Polluted
Site 32331832343.2117822Heavily Polluted
Site 4238188-3.112613411Heavily Polluted
Site 52001501682.960947Moderately Polluted
Site 62271772452.71701924Heavily Polluted
Site 72141642093.11131249Heavily Polluted
Site 8219169-1.23732045Heavily Polluted
Site 92001501641.53643037Moderately Polluted
Site 10204154-1.44921832Heavily Polluted
Site 112131632232.11181422Heavily Polluted
Site 121801361922.4653212Moderately Polluted

Beijing AQI Ranking

Beijing AQI ranks #173 in China(total 190),defeat -52% cities.

Last 7 days rankings and AQI data of Beijing City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2014-10-22 #119100741411.28676111310Good
2014-10-21 #837736891.27361194030Good
2014-10-20 #1862481982321.587557256Heavily Polluted
2014-10-19 #1892892383122.33114128965Heavily Polluted
2014-10-18 #1752071562342.06711618163115Heavily Polluted
2014-10-17 #143131991811.28108117858Lightly Polluted
2014-10-16 #5775371000.6475689272Good
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.