Zhengzhou Air Quality Index

Good(Class B)
(September 25th,2017 ,09:00:00 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: 32.89μg/m3,24-hour PM2.5: 29.05μg/m3.
1-hour PM2.5 ranks #243 in China by ascending,total 367 cities.
1-hour PM10: 69.56μg/m3,24-hour PM10: 62.08μg/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 16533791.548113413Good
Site 276321021.133124726Good
Site 36430781.447101710Good
Site 4472847142135724Excellent
Site 56730831.149123832Good
Site 65630611.13285239Good
Site 75636610.83793224Good
Site 84934490.937234034Excellent
Site 96043660.849192217Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #240 in China(total 367),defeat 35% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-09-24 #1815729630.845401311393Good
2017-09-23 #327113661751.1757418174157Lightly Polluted
2017-09-22 #25183451161.0726117156134Good
2017-09-21 #298105551160.9734417188165Lightly Polluted
2017-09-20 #357158521231.195923254222Moderately Polluted
2017-09-19 #27499681471.6417727155130Good
2017-09-18 #245115761591.3337225197176Lightly 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.