Beijing Air Quality Index

Moderately Polluted(Class D)
(October 23rd,2014 ,02:00:00 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 more serious health effects,may impact the heart,respiratory system of healthy groups.
Suggestion:People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion; everyone else should reduce prolonged or heavy exertion.

Beijing PM2.5

1-hour PM2.5: 135.45μg/m3,24-hour PM2.5: 99.4μg/m3.
1-hour PM2.5 ranks #127 in China by ascending,total 190 cities.
1-hour PM10: 175.82μg/m3,24-hour PM10: 161.93μg/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 1117841841.79314169Lightly Polluted
Site 21661261771.485171910Moderately Polluted
Site 3-------5-
Site 41861401691.274163316Moderately Polluted
Site 51831381871.59525147Moderately Polluted
Site 61901431861.192182013Moderately Polluted
Site 71831381651.484182411Moderately Polluted
Site 82421921971.127289039Heavily Polluted
Site 91721301751.234306519Moderately Polluted
Site 102111611861.238145725Heavily Polluted
Site 111891421841.17818-2Moderately Polluted
Site 12127961241.446344415Lightly Polluted

Beijing AQI Ranking

Beijing AQI ranks #172 in China(total 190),defeat -51% 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.