Chengdu Air Quality Index

Moderately Polluted(Class D)
(July 28th,2017 ,08:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:O3-8h
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.

Chengdu PM2.5

1-hour PM2.5: 24μg/m3,24-hour PM2.5: 16.48μg/m3.
1-hour PM2.5 ranks #184 in China by ascending,total 367 cities.
1-hour PM10: 47.38μg/m3,24-hour PM10: 33.81μg/m3.

All Air Monitoring Sites Of Chengdu 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)
8 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 14923490.7478150209Excellent
Site 26717340.8205173206Good
Site 36030700.6438159206Good
Site 410838620.7353215258Lightly Polluted
Site 55829660.6416160209Good
Site 63915311678123186Excellent
Site 710318350.1710205194Lightly Polluted
Site 810322320.6217205267Lightly Polluted

Chengdu AQI Ranking

Chengdu AQI ranks #360 in China(total 367),defeat 2% cities.

Last 7 days rankings and AQI data of Chengdu City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-07-27 #34213422400.615277231197Lightly Polluted
2017-07-26 #33713329520.705398247195Lightly Polluted
2017-07-25 #33413426500.7234910251196Lightly Polluted
2017-07-24 #33813413280.605376236197Lightly Polluted
2017-07-23 #31811521430.692337222176Lightly Polluted
2017-07-22 #2417817350.702346179133Good
2017-07-21 #2838422400.716368170141Good
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.