Lanzhou Air Quality Index

Good(Class B)
(April 23rd,2017 ,11:00:00 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.

Lanzhou PM2.5

1-hour PM2.5: 51.2μg/m3,24-hour PM2.5: 35.98μg/m3.
1-hour PM2.5 ranks #279 in China by ascending,total 367 cities.
1-hour PM10: 132.6μg/m3,24-hour PM10: 119.1μg/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 1102601541.2106829115Lightly Polluted
Site 26729840.5109117137Good
Site 394481380.8671355123Good
Site 47453970.6881046120Good
Site 5120661902.811524491Lightly Polluted

Lanzhou AQI Ranking

Lanzhou AQI ranks #278 in China(total 367),defeat 24% cities.

Last 7 days rankings and AQI data of Lanzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-04-22 #339101421520.7435212156141Lightly Polluted
2017-04-21 #361137572240.695499134123Lightly Polluted
2017-04-20 #32598471450.603389126110Good
2017-04-19 #1927732830.434236132132Good
2017-04-18 #3625001496410.65418127107Severely Polluted
2017-04-17 #3634521255520.7344411170130Severely Polluted
2017-04-16 #22282461130.6224210110103Good
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.