Changsha Air Quality Index

98
Good(Class B)
(May 27th,2018 ,10:00:00 PM(UTC+8) Published)
050
100
150
200
300
>500
Excellent
Good
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants: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: 59.7μg/m3,24-hour PM2.5: 67.12μg/m3.
1-hour PM2.5 ranks #301 in China by ascending,total 367 cities.
1-hour PM10: 146μg/m3,24-hour PM10: 192.68μg/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 1105661590.641673114Lightly Polluted
Site 2100591490.832781113Good
Site 3100511500.713466105Good
Site 482511140.435765116Good
Site 598501450.625777111Good
Site 698601460.746592116Good
Site 7112711730.639876106Lightly Polluted
Site 892631330.739792118Good
Site 9107721630.75775396Lightly Polluted
Site 1089541280.634774124Good

Changsha AQI Ranking

Changsha AQI ranks #258 in China(total 367),defeat 30% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-05-26 #234028340.8781247774Excellent
2018-05-25 #1316326540.666249130115Good
2018-05-24 #1868638680.9362910153142Good
2018-05-23 #17487531240.6422469180Good
2018-05-22 #714615450.5741349080Excellent
2018-05-21 #784530430.73715411889Excellent
2018-05-20 #3278736580.662209156143Good
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.