Zhengzhou Air Quality Index

Moderately Polluted(Class D)
(January 19th,2019 ,12:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Members of sensitive groups may experience more serious health effects,may impact the heart,respiratory system of healthy groups.
Suggestion:People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion; everyone else should reduce prolonged or heavy exertion.

Zhengzhou PM2.5

1-hour PM2.5: 127.44μg/m3,24-hour PM2.5: 98.76μg/m3.
1-hour PM2.5 ranks #309 in China by ascending,total 367 cities.
1-hour PM10: 174.22μg/m3,24-hour PM10: 160.84μg/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 11791351711.7922024Moderately Polluted
Site 21721301761.4952355Moderately Polluted
Site 31831381861.266192716Moderately Polluted
Site 41651251821.1912444Moderately Polluted
Site 51601221561.4921843Moderately Polluted
Site 61621231861.7872267Moderately Polluted
Site 71471121771.49521211Lightly Polluted
Site 81531171801.21002444Moderately Polluted
Site 91931451541.7862421Moderately Polluted

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #307 in China(total 367),defeat 16% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-01-17 #1447143920.81855215747Good
2019-01-16 #31896471410.76557154335Good
2019-01-15 #3051381052081.26544115652Lightly Polluted
2019-01-14 #3422832332862.02681112816Heavily Polluted
2019-01-13 #3122391882241.9926993626Heavily Polluted
2019-01-12 #3292491982401.87379145733Heavily Polluted
2019-01-11 #3412371872211.77166146342Heavily 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.