Lanzhou Air Quality Index

145
Lightly Polluted(Class C)
(January 20th,2017 ,08:00:00 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:Members of sensitive groups may experience health effects
Suggestion:People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.

Lanzhou PM2.5

1-hour PM2.5: 73.4μg/m3,24-hour PM2.5: 68.3μg/m3.
1-hour PM2.5 ranks #294 in China by ascending,total 367 cities.
1-hour PM10: 239.4μg/m3,24-hour PM10: 288.66μg/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 1131712112.4663667Lightly Polluted
Site 2164802781.224393947Moderately Polluted
Site 3119611881.6632688Lightly Polluted
Site 4152782542.3773655Moderately Polluted
Site 5158772661.956591011Moderately Polluted

Lanzhou AQI Ranking

Lanzhou AQI ranks #344 in China(total 367),defeat 6% cities.

Last 7 days rankings and AQI data of Lanzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-01-19 #362267763970.94643249987Heavily Polluted
2017-01-18 #16687601221.261543610287Good
2017-01-17 #1086840841.03847327971Good
2017-01-16 #17678391050.96950358176Good
2017-01-15 #24086561211.24957409084Good
2017-01-14 #308113851461.8473478371Lightly Polluted
2017-01-13 #311129981652.15785439465Lightly 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.