Zhengzhou Air Quality Index

Good(Class B)
(July 21st,2018 ,07:00:00 AM(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.

Zhengzhou PM2.5

1-hour PM2.5: 30.78μg/m3,24-hour PM2.5: 24.87μg/m3.
1-hour PM2.5 ranks #216 in China by ascending,total 367 cities.
1-hour PM10: 90.33μg/m3,24-hour PM10: 63.87μg/m3.

All Air Monitoring Sites Of Zhengzhou 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)
9 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 16429770.65253449Good
Site 26725830.852152735Good
Site 35521591.22525331Good
Site 470309017042662Good
Site 5794510717081742Good
Site 677341041.15582618Good
Site 781311120.940123726Good
Site 876301020.952252835Good
Site 96532791.15682934Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #313 in China(total 367),defeat 15% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-07-20 #2578924600.722285161147Good
2018-07-19 #2567822550.732274143133Good
2018-07-18 #2989231680.807254155150Good
2018-07-17 #2878725610.822344152144Good
2018-07-16 #2276620520.726273131119Good
2018-07-15 #2066321470.761283123115Good
2018-07-14 #2316723460.947283138120Good
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.