Changsha Air Quality Index

Good(Class B)
(February 22nd,2020 ,07:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
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: 54μg/m3,24-hour PM2.5: 57.79μg/m3.
1-hour PM2.5 ranks #278 in China by ascending,total 367 cities.
1-hour PM10: 0μg/m3,24-hour PM10: 54.73μg/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 16547-0.71761913Good
Site 28764-0.71934027Good
Site 35337-11353832Good
Site 46547-0.717223Good
Site 59369-0.71542424Good
Site 67756-0.8352929Good
Site 76547-0.82941019Good
Site 88865-0.82253129Good
Site 97353-0.72481421Good
Site 107555-0.93042721Good

Changsha AQI Ranking

Changsha AQI ranks #242 in China(total 367),defeat 34% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2020-02-21 #2277756590.7341757975Good
2020-02-20 #1827050620.855267123106Good
2020-02-19 #2216345550.8653186254Good
2020-02-18 #2265425340.642176114105Good
2020-02-17 #2754916280.50510510398Excellent
2020-02-16 #2484413230.492559087Excellent
2020-02-15 #1033316150.722646965Excellent
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.