Zhengzhou Air Quality Index

Good(Class B)
(August 20th,2017 ,05:00:00 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: 49.44μg/m3,24-hour PM2.5: 56.14μg/m3.
1-hour PM2.5 ranks #324 in China by ascending,total 367 cities.
1-hour PM10: 80.33μg/m3,24-hour PM10: 78.42μg/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 17252721.76072648Good
Site 26744842.11996680Good
Site 387351241.525848Good
Site 4684980222106983Good
Site 57051691.42965972Good
Site 66748791.62256983Good
Site 78361771.92076883Good
Site 86849721.521127087Good
Site 97756661.840125268Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #316 in China(total 367),defeat 14% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-08-19 #2677454751.19125611099Good
2017-08-18 #2026544791.016336140106Good
2017-08-17 #3009742900.985357165156Good
2017-08-16 #347129541041.117389207191Lightly Polluted
2017-08-15 #356133561121.098538255195Lightly Polluted
2017-08-14 #33610544761.186299193165Lightly Polluted
2017-08-13 #3259427490.891236172153Good
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.