Changsha Air Quality Index

Good(Class B)
(January 21st,2020 ,12:00:00 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: 72.2μg/m3,24-hour PM2.5: 84.25μg/m3.
1-hour PM2.5 ranks #232 in China by ascending,total 367 cities.
1-hour PM10: 82.67μg/m3,24-hour PM10: 96.37μg/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 1119901141.5617320Lightly Polluted
Site 28764651.14363949Good
Site 3-71-0.93054355-
Site 4-94-1.3604323-
Site 5-71-1.43873943-
Site 67958601.13833926Good
Site 79369871.46761248Good
Site 8-51-0.81856252-
Site 910881941.34162454Lightly Polluted
Site 109873761.58241636Good

Changsha AQI Ranking

Changsha AQI ranks #227 in China(total 367),defeat 38% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2020-01-19 #266116871211.236610891Lightly Polluted
2020-01-18 #1808663630.9073554339Good
2020-01-17 #1607252490.7982847465Good
2020-01-16 #2309772550.9142245452Good
2020-01-15 #1406647251.2283143531Good
2020-01-14 #21310277631.1423853737Lightly Polluted
2020-01-13 #1025640490.9923556158Good
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.