Zhengzhou Air Quality Index

Lightly Polluted(Class C)
(May 23rd,2018 ,12:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM10
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: 64.63μg/m3,24-hour PM2.5: 65.84μg/m3.
1-hour PM2.5 ranks #355 in China by ascending,total 367 cities.
1-hour PM10: 153.86μg/m3,24-hour PM10: 205.95μg/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 1107561630.8292715284Lightly Polluted
Site 2101461520.7-1313272Lightly Polluted
Site 392411340.9171416588Good
Site 4117531840.6291214160Lightly Polluted
Site 5----341413867-
Site 6207157-0.4381612567Heavily Polluted
Site 7103611550.7191313558Lightly Polluted
Site 895441390.6311714065Good
Site 9100591500.9--14180Good

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #300 in China(total 367),defeat 18% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-05-22 #337122571940.7743511138120Lightly Polluted
2018-05-21 #1275232520.7552968973Good
2018-05-20 #1886225430.834214113113Good
2018-05-19 #2227534660.997317129129Good
2018-05-18 #1076026690.92724910892Good
2018-05-17 #33910350851.207296178163Lightly Polluted
2018-05-16 #2639241640.87315180150Good
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.