Changsha Air Quality Index

Good(Class B)
(July 23rd,2018 ,01:00:00 PM(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: 45.5μg/m3,24-hour PM2.5: 31.3μg/m3.
1-hour PM2.5 ranks #331 in China by ascending,total 367 cities.
1-hour PM10: 64.3μg/m3,24-hour PM10: 50.42μg/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 16038691.2151115156Good
Site 25934680.910915468Good
Site 36641811151315278Good
Site 45539570.751011656Good
Site 59772740.881113346Good
Site 67756821.3231417468Good
Site 79555711.1211619674Good
Site 86547581.1151316672Good
Site 99347531111519480Good
Site 103826300.71469857Excellent

Changsha AQI Ranking

Changsha AQI ranks #286 in China(total 367),defeat 22% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-07-22 #1465937620.805299160111Good
2018-07-21 #2378837660.7312511165145Good
2018-07-20 #29910231580.6532110180162Lightly Polluted
2018-07-19 #2899126500.6132011163149Good
2018-07-18 #2477727510.6311910141132Good
2018-07-17 #2387228460.5891610138125Good
2018-07-16 #2918628520.6372110159143Good
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.