Changsha Air Quality Index

Good(Class B)
(March 23rd,2018 ,06:00:00 PM(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: 45.89μg/m3,24-hour PM2.5: 58μg/m3.
1-hour PM2.5 ranks #206 in China by ascending,total 367 cities.
1-hour PM10: 144.67μg/m3,24-hour PM10: 174.87μg/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 197431430.878137786Good
Site 292441330.5259149125Good
Site 3102551540.5271410697Lightly Polluted
Site 4---------
Site 5102471530.63514117105Lightly Polluted
Site 699501480.691117389Good
Site 7107471640.63110132115Lightly Polluted
Site 889421270.62513150124Good
Site 9107471630.72510133118Lightly Polluted
Site 1084381170.42423140118Good

Changsha AQI Ranking

Changsha AQI ranks #290 in China(total 367),defeat 21% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-03-22 #25595651401.1366118131110Good
2018-03-21 #3078562781.04659109776Good
2018-03-20 #2026144580.8272969582Good
2018-03-19 #1435538280.8232256860Good
2018-03-18 #12301080.6852354939Excellent
2018-03-17 #2146647620.7163462727Good
2018-03-16 #2757857710.6262766252Good
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.