Lanzhou Air Quality Index

Good(Class B)
(November 20th,2017 ,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: 57μg/m3,24-hour PM2.5: 35.77μg/m3.
1-hour PM2.5 ranks #282 in China by ascending,total 367 cities.
1-hour PM10: 147.8μg/m3,24-hour PM10: 104.12μg/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 1117791841.71254710030Lightly Polluted
Site 26838860.625175141Good
Site 399451482.38560239Good
Site 494481371.577413615Good
Site 5117751841.890492410Lightly Polluted

Lanzhou AQI Ranking

Lanzhou AQI ranks #307 in China(total 367),defeat 16% cities.

Last 7 days rankings and AQI data of Lanzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-11-19 #2657538980.97740398275Good
2017-11-18 #34281451111.40254384444Good
2017-11-17 #26584581181.31350305952Good
2017-11-16 #297114831772.322793412762Lightly Polluted
2017-11-15 #296101631512.09676336648Lightly Polluted
2017-11-14 #27686481171.44682611371Good
2017-11-13 #2277540991.222542310584Good
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.