Zhengzhou Air Quality Index

Lightly Polluted(Class C)
(February 26th,2017 ,08:00:00 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 health effects
Suggestion:People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.

Zhengzhou PM2.5

1-hour PM2.5: 82.89μg/m3,24-hour PM2.5: 77.96μg/m3.
1-hour PM2.5 ranks #282 in China by ascending,total 367 cities.
1-hour PM10: 127.44μg/m3,24-hour PM10: 130.61μg/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 199741221.4786684Good
Site 298731081.793581513Good
Site 3100751011.658151814Good
Site 4124941331.7696857Lightly Polluted
Site 594701161.1775836Good
Site 6102761261.5816997Lightly Polluted
Site 71761332291.978431010Moderately Polluted
Site 895711191.4857398Good
Site 910780932.4746695Lightly Polluted

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #277 in China(total 367),defeat 25% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-01-26 #2953272763202.51463496060Severely Polluted
2017-01-25 #3382952443052.46770529079Heavily Polluted
2017-01-24 #3522682182742.77674574840Heavily Polluted
2017-01-23 #3502311802612.08577326848Heavily Polluted
2017-01-22 #3221441101801.76571445845Lightly Polluted
2017-01-21 #24287561241.35948406964Good
2017-01-20 #1896928871.04542267456Good
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.