Lanzhou Air Quality Index

Good(Class B)
(March 21st,2019 ,01:00:00 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: 38.6μg/m3,24-hour PM2.5: 34.32μg/m3.
1-hour PM2.5 ranks #290 in China by ascending,total 367 cities.
1-hour PM10: 139.5μg/m3,24-hour PM10: 145.58μg/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 198421460.8372311977Good
Site 26345-0.835239563Good
Site 384291170.41359282Good
Site 495411400.538116454Good
Site 5103361550.846155240Lightly Polluted

Lanzhou AQI Ranking

Lanzhou AQI ranks #304 in China(total 367),defeat 17% cities.

Last 7 days rankings and AQI data of Lanzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-03-20 #309101371510.34822109696Lightly Polluted
2019-03-19 #1797235920.8374421126107Good
2019-03-18 #2728444961.0365919169140Good
2019-03-17 #1456337740.8254318110102Good
2019-03-16 #2167137900.9895519122110Good
2019-03-15 #3438638901.076921147130Good
2019-03-14 #2757238821.275720135117Good
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.