Zhengzhou Air Quality Index

Good(Class B)
(March 19th,2019 ,06:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM10,O3-8h
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: 26.22μg/m3,24-hour PM2.5: 39.64μg/m3.
1-hour PM2.5 ranks #136 in China by ascending,total 367 cities.
1-hour PM10: 93.22μg/m3,24-hour PM10: 93.36μg/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 17428980.5215121107Good
Site 26622810.6144121124Good
Site 387331240.5168134132Good
Site 47322960.93013121128Good
Site 56826860.7195115122Good
Site 67225930.2174137136Good
Site 77330960.3195120123Good
Site 86629820.52010129129Good
Site 96721830.284136135Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #206 in China(total 367),defeat 44% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-03-18 #2217344930.64211140128Good
2019-03-17 #30092681330.7446113139114Good
2019-03-16 #2187140920.6075313120107Good
2019-03-15 #2146223740.54849910394Good
2019-03-14 #2957538990.6944712112100Good
2019-03-13 #32994481370.75773114938Good
2019-03-12 #1967121910.483578175Good
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.