Zhengzhou Air Quality Index

Good(Class B)
(May 25th,2019 ,09:00:00 AM(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: 61.71μg/m3,24-hour PM2.5: 47.28μg/m3.
1-hour PM2.5 ranks #327 in China by ascending,total 367 cities.
1-hour PM10: 115.43μg/m3,24-hour PM10: 102.15μg/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 194701201391210987Good
Site 281541110.522610990Good
Site 3100691491.24398144Good
Site 4---------
Site 593691031.33558679Good
Site 6---0.82519288-
Site 781521110.723710788Good
Site 883531150.52889985Good
Site 98865990.82813118105Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #281 in China(total 367),defeat 23% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-05-24 #28312640980.666268198188Lightly Polluted
2019-05-23 #260124361000.6435012209186Lightly Polluted
2019-05-22 #26410630850.5944610172167Lightly Polluted
2019-05-21 #2789531900.6135313165153Good
2019-05-20 #2577424970.476346132120Good
2019-05-19 #347114321780.492256129124Lightly Polluted
2019-05-18 #1715832650.6592039685Good
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.