Zhengzhou Air Quality Index

Good(Class B)
(March 22nd,2018 ,03:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
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: 66.17μg/m3,24-hour PM2.5: 83.07μg/m3.
1-hour PM2.5 ranks #303 in China by ascending,total 367 cities.
1-hour PM10: 91μg/m3,24-hour PM10: 137.88μg/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 18059760.9171114165Good
Site 2---------
Site 39873-1301814478Good
Site 48462840.7231914671Good
Site 58361920.8251813060Good
Site 69571920.8212413969Good
Site 7---------
Site 8---------
Site 995711110.7191710266Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #298 in China(total 367),defeat 19% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-03-21 #2327041750.87655188678Good
2018-03-20 #1605629610.743114109104Good
2018-03-19 #3521891421441.4484813121107Moderately Polluted
2018-03-18 #3281331011131.31443106451Lightly Polluted
2018-03-17 #2196748720.77745126868Good
2018-03-16 #905118500.5572310107101Good
2018-03-15 #335152712531.03436118381Moderately 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.