Zhengzhou Air Quality Index

Severely Polluted(Class F)
(January 19th,2018 ,04:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Exercise tolerance of healthy people is decreased,strong symptoms and early appearance of certain diseases.
Suggestion:Everyone should avoid all physical activity outdoors; people with heart or lung disease, older adults, and children should remain indoors and keep activity levels low.

Zhengzhou PM2.5

1-hour PM2.5: 298μg/m3,24-hour PM2.5: 354.62μg/m3.
1-hour PM2.5 ranks #356 in China by ascending,total 367 cities.
1-hour PM10: 399.13μg/m3,24-hour PM10: 408.74μg/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 13642714712.7892622Severely Polluted
Site 24303944462.8902055Severely Polluted
Site 31691222881.4833855Moderately Polluted
Site 43282783742.51302677Severely Polluted
Site 53603104062.6993022Severely Polluted
Site 6417375-3.2962422Severely Polluted
Site 74023534833701866Severely Polluted
Site 83543044002.51032399Severely Polluted
Site 93252753252.6942944Severely Polluted

Zhengzhou AQI Ranking

Zhengzhou AQI ranks #356 in China(total 367),defeat 3% cities.

Last 7 days rankings and AQI data of Zhengzhou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-01-18 #3604043554072.92993276047Severely Polluted
2018-01-17 #3583703193702.97799388449Severely Polluted
2018-01-16 #3533342843022.65390425446Severely Polluted
2018-01-15 #3513092592772.19492245040Severely Polluted
2018-01-14 #3392121611991.5184269875Heavily Polluted
2018-01-13 #3271711291641.31579216745Moderately Polluted
2018-01-12 #303107801281.08573254939Lightly 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.