Zhangjiakou Air Quality Index

Good(Class B)
(April 23rd,2017 ,03:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:O3-8h
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.

Zhangjiakou PM2.5

1-hour PM2.5: 9.8μg/m3,24-hour PM2.5: 16.64μg/m3.
1-hour PM2.5 ranks #27 in China by ascending,total 367 cities.
1-hour PM10: 38.4μg/m3,24-hour PM10: 94.69μg/m3.

All Air Monitoring Sites Of Zhangjiakou 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)
5 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 14218390.423134106Excellent
Site 2575630.7810130108Good
Site 3396360.285123104Excellent
Site 4427360.577133113Excellent
Site 54013180.21233127104Excellent

Zhangjiakou AQI Ranking

Zhangjiakou AQI ranks #136 in China(total 367),defeat 63% cities.

Last 7 days rankings and AQI data of Zhangjiakou City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-04-22 #19178191050.51813139127Good
2017-04-21 #1746415370.487179120116Good
2017-04-20 #1536420780.4781610117110Good
2017-04-19 #25589231270.5872212118107Good
2017-04-18 #1226519780.465158118115Good
2017-04-17 #298111271710.4781813113108Lightly Polluted
2017-04-16 #20278251050.5012315134121Good
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.