Lanzhou Air Quality Index

67
Good(Class B)
(May 24th,2017 ,04:00:00 AM(UTC+8) Published)
050
100
150
200
300
>500
Excellent
Good
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: 36.58μg/m3.
1-hour PM2.5 ranks #301 in China by ascending,total 367 cities.
1-hour PM10: 84μg/m3,24-hour PM10: 87.12μg/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 16640810.720178595Good
Site 277391030.63366992Good
Site 37343950.25795477Good
Site 46244710.331109189Good
Site 56027700.33748392Good

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
2017-05-23 #2566936880.452236117109Good
2017-05-22 #298103661550.51725511995Lightly Polluted
2017-05-21 #269107531620.442310118114Lightly Polluted
2017-05-20 #1667840900.577337143133Good
2017-05-19 #20588411160.7625814183145Good
2017-05-18 #977731670.6114011152132Good
2017-05-17 #10079401010.7375113152134Good
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.