Changsha Air Quality Index

Good(Class B)
(May 23rd,2019 ,09:00:00 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: 72.22μg/m3,24-hour PM2.5: 56.62μg/m3.
1-hour PM2.5 ranks #343 in China by ascending,total 367 cities.
1-hour PM10: 112.78μg/m3,24-hour PM10: 100.83μg/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 190671101.24811377Good
Site 2104781311.151165819Lightly Polluted
Site 377521041.223137466Good
Site 4118891021.337205810Lightly Polluted
Site 5112841151.352134120Lightly Polluted
Site 697721031.34817419Good
Site 787631240.830157434Good
Site 8---------
Site 983601160.82296323Good
Site 10113851100.953154822Lightly Polluted

Changsha AQI Ranking

Changsha AQI ranks #322 in China(total 367),defeat 12% cities.

Last 7 days rankings and AQI data of Changsha City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-05-22 #30312253990.807547219184Lightly Polluted
2019-05-21 #19379581070.76141108380Good
2019-05-20 #2206922870.493247133114Good
2019-05-19 #984932480.7881647875Excellent
2019-05-18 #1385531481.057315131105Good
2019-05-17 #634529450.9182548468Excellent
2019-05-16 #424128370.8462954238Excellent
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.