Lanzhou Air Quality Index

Good(Class B)
(February 27th,2017 ,10:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:O3-8h
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.

Lanzhou PM2.5

1-hour PM2.5: 48.6μg/m3,24-hour PM2.5: 55.83μg/m3.
1-hour PM2.5 ranks #132 in China by ascending,total 367 cities.
1-hour PM10: 80μg/m3,24-hour PM10: 109.27μg/m3.

All Air Monitoring Sites Of Lanzhou 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)
5 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 182601011.11514101131Good
Site 27543680.6616180165Good
Site 36540791.2302484102Good
Site 46043620.52216103113Good
Site 57857900.763197096Good

Lanzhou AQI Ranking

Lanzhou AQI ranks #107 in China(total 367),defeat 71% cities.

Last 7 days rankings and AQI data of Lanzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-01-26 #31650038725940.69626126660Severely Polluted
2017-01-25 #3564581415572.27775377561Severely Polluted
2017-01-24 #256124941682.798925710378Lightly Polluted
2017-01-23 #251107801492.516844910777Lightly Polluted
2017-01-22 #22189541181.965714512177Good
2017-01-21 #28799621471.98371459870Good
2017-01-20 #342134702181.66364398165Lightly Polluted
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.