Beijing Air Quality Index

Heavily Polluted(Class E)
(January 25th,2015 ,05:00:00 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: 160.5μg/m3,24-hour PM2.5: 103.75μg/m3.
1-hour PM2.5 ranks #284 in China by ascending,total 367 cities.
1-hour PM10: 164.8μg/m3,24-hour PM10: 98.64μg/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 12341841881.773232430Heavily Polluted
Site 2219169-1.666252025Heavily Polluted
Site 3195146-1.581272430Moderately Polluted
Site 4224174-1.655224037Heavily Polluted
Site 52171671691.565242433Heavily Polluted
Site 61621231241.664252321Moderately Polluted
Site 72171671671.877192022Heavily Polluted
Site 8201151-1.661292926Heavily Polluted
Site 9216166-1.64973517Heavily Polluted
Site 10163124-1.564263023Moderately Polluted
Site 112081581761.6913129Heavily Polluted
Site 12247197-1.86753321Heavily Polluted

Beijing AQI Ranking

Beijing AQI ranks #284 in China(total 367),defeat 23% cities.

Last 7 days rankings and AQI data of Beijing City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2015-01-24 #168118891191.85967313526Lightly Polluted
2015-01-23 #3612602102393.635123622114Heavily Polluted
2015-01-22 #2771381051332.08682414626Lightly Polluted
2015-01-21 #134219260.63433166963Excellent
2015-01-20 #245112841071.97274443424Lightly Polluted
2015-01-19 #877545751.31360266064Good
2015-01-18 #14793691051.48352307769Good
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.