Changsha Air Quality Index

32
Excellent(Class A)
(September 21st,2018 ,12:00:00 PM(UTC+8) Published)
050
100
150
200
300
>500
Excellent
Good
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:-
Health Implications:Air quality is satisfactory,almost no air pollution.
Suggestion:None.

Changsha PM2.5

1-hour PM2.5: 18.11μg/m3,24-hour PM2.5: 21.67μg/m3.
1-hour PM2.5 ranks #161 in China by ascending,total 367 cities.
1-hour PM10: 30.89μg/m3,24-hour PM10: 37.69μg/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)
9 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 12916281.11889265Excellent
Site 232183211279364Excellent
Site 33323320.911910570Excellent
Site 43114280.91669863Excellent
Site 53821380.81789263Excellent
Site 63919390.91678854Excellent
Site 73119260.91779964Excellent
Site 83116310.81389056Excellent
Site 93317240.716610468Excellent

Changsha AQI Ranking

Changsha AQI ranks #82 in China(total 367),defeat 78% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-09-20 #1985323470.6932711121103Good
2018-09-19 #1604618400.58427910391Excellent
2018-09-18 #3077353820.834247150123Good
2018-09-17 #3037152720.857198108113Good
2018-09-16 #3588943690.72168154146Good
2018-09-15 #3449641660.7092010170155Good
2018-09-14 #3269446710.726209170153Good
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.