Changsha Air Quality Index

40
Excellent(Class A)
(March 21st,2019 ,01:00:00 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: 20.25μg/m3,24-hour PM2.5: 35.15μg/m3.
1-hour PM2.5 ranks #152 in China by ascending,total 367 cities.
1-hour PM10: 25.57μg/m3,24-hour PM10: 58.48μg/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 13323240.91648477Excellent
Site 23222290.62468681Excellent
Site 3----649692-
Site 42918230.71299180Excellent
Site 5302130-125-75Excellent
Site 6---------
Site 72717220.51748569Excellent
Site 82920-0.8242-77Excellent
Site 93018210.611109374Excellent
Site 103323300.51458580Excellent

Changsha AQI Ranking

Changsha AQI ranks #83 in China(total 367),defeat 77% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-03-20 #1075639610.849238115104Good
2019-03-19 #485235540.93633109682Good
2019-03-18 #1566446600.883437125103Good
2019-03-17 #2017252590.9434486652Good
2019-03-16 #3218760811.0196985534Good
2019-03-15 #3207756790.91611011193Good
2019-03-14 #2767252630.7532611595Good
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.