Chengde Air Quality Index

Good(Class B)
(August 21st,2017 ,05:00:00 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.

Chengde PM2.5

1-hour PM2.5: 30.2μg/m3,24-hour PM2.5: 31.74μg/m3.
1-hour PM2.5 ranks #234 in China by ascending,total 367 cities.
1-hour PM10: 75μg/m3,24-hour PM10: 72.86μg/m3.

All Air Monitoring Sites Of Chengde 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 110223851.31821203172Lightly Polluted
Site 27938691.11825183153Good
Site 35935591.42527167154Good
Site 46232741.41418140142Good
Site 56923880.92912136144Good

Chengde AQI Ranking

Chengde AQI ranks #295 in China(total 367),defeat 20% cities.

Last 7 days rankings and AQI data of Chengde City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-08-20 #2466722610.79249140120Good
2017-08-19 #874516440.52421610789Excellent
2017-08-18 #1104811350.43419611696Excellent
2017-08-17 #944311320.37316411086Excellent
2017-08-16 #1064511240.3921959790Excellent
2017-08-15 #2518119490.618198161136Good
2017-08-14 #2036116460.569226127113Good
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.