Changsha Air Quality Index

Good(Class B)
(August 12th,2019 ,11:00:00 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: 25μg/m3,24-hour PM2.5: 18.37μg/m3.
1-hour PM2.5 ranks #287 in China by ascending,total 367 cities.
1-hour PM10: 52.7μg/m3,24-hour PM10: 43.63μg/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 14520450.824613093Excellent
Site 25423570.617513190Good
Site 34720410.9176148107Excellent
Site 44721470.69713289Excellent
Site 55423580.615713998Good
Site 65129511.123612383Good
Site 75434580.6128153104Good
Site 85325560.817413386Good
Site 95433580.7147147105Good
Site 10532256136411292Good

Changsha AQI Ranking

Changsha AQI ranks #296 in China(total 367),defeat 19% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-08-11 #3239220400.729176155150Good
2019-08-10 #2015226410.717115108101Good
2019-08-09 #3178530480.782126145141Good
2019-08-08 #3289231470.8115153150Good
2019-08-07 #2386933560.768256168122Good
2019-08-06 #3339729530.733256185156Good
2019-08-05 #3228528500.684236167141Good
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.