Changsha Air Quality Index

Good(Class B)
(July 29th,2017 ,01:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM10
Health Implications:Air quality is acceptable,but maybe unhealthy to a small number of sensitive groups.
Suggestion:Unusually sensitive people should consider reducing prolonged or heavy exertion.

Changsha PM2.5

1-hour PM2.5: 36.7μg/m3,24-hour PM2.5: 53.45μg/m3.
1-hour PM2.5 ranks #252 in China by ascending,total 367 cities.
1-hour PM10: 59.56μg/m3,24-hour PM10: 92.97μg/m3.

All Air Monitoring Sites Of Changsha 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)
10 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 15933670.55384949Good
Site 25532600.74755555Good
Site 35740-0.71187575Good
Site 481301110.86661212Good
Site 55436570.43296969Good
Site 65032500.53498787Excellent
Site 75942420.52178484Good
Site 85438550.65254141Good
Site 95539470.72886262Good
Site 106345470.82978181Good

Changsha AQI Ranking

Changsha AQI ranks #206 in China(total 367),defeat 44% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-07-27 #32012141740.7453120194183Lightly Polluted
2017-07-26 #2589937800.8863520183158Good
2017-07-25 #2208323540.713017153139Good
2017-07-24 #2227824500.6942718159134Good
2017-07-23 #32912740860.7493316213189Lightly Polluted
2017-07-22 #2889134740.7743519156149Good
2017-07-21 #1676024490.6612412116111Good
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.