Zhengzhou Air Quality Index

Good(Class B)
(June 24th,2017 ,12:00:00 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: 52.25μg/m3,24-hour PM2.5: 62.44μg/m3.
1-hour PM2.5 ranks #335 in China by ascending,total 367 cities.
1-hour PM10: 95μg/m3,24-hour PM10: 112.43μg/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 183501161.2451273111Good
Site 278571031.5291279114Good
Site 377521041.527394135Good
Site 47453971.3261081104Good
Site 57051781.433686109Good
Site 67150911.128994128Good
Site 7---------
Site 87549991.530786116Good
Site 97756721.34136295Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #309 in China(total 367),defeat 16% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-06-22 #3138841770.8369170145Good
2017-06-21 #26186561210.911459168137Good
2017-06-20 #360202811581.1535124319273Heavily Polluted
2017-06-19 #348167621380.9155919261232Moderately Polluted
2017-06-18 #354191561240.9154917269256Moderately Polluted
2017-06-17 #325170541260.8326016249235Moderately Polluted
2017-06-16 #318174571290.9035515287238Moderately 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.