Ya'an Air Quality Index

Heavily Polluted(Class E)
(December 4th,2016 ,11:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Exercise tolerance is reduced in people with heart and lung conditions;healthy people may exhibit symptoms.
Suggestion:People with heart or lung disease, older adults, and children should avoid all physical activity outdoors. Everyone else should avoid prolonged or heavy exertion.

Ya'an PM2.5

1-hour PM2.5: 166.5μg/m3,24-hour PM2.5: 99μg/m3.
1-hour PM2.5 ranks #318 in China by ascending,total 367 cities.
1-hour PM10: 293.5μg/m3,24-hour PM10: 157.64μg/m3.

All Air Monitoring Sites Of Ya'an 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)
4 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 12281783331.753522145Heavily Polluted
Site 21781342631.144232028Moderately Polluted
Site 32061562851.57624116153Heavily Polluted
Site 42481982931.472162628Heavily Polluted

Ya'an AQI Ranking

Ya'an AQI ranks #319 in China(total 367),defeat 13% cities.

Last 7 days rankings and AQI data of Ya'an City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2016-12-03 #2741451111650.9530168781Lightly Polluted
2016-12-02 #240114851310.86126137575Lightly Polluted
2016-12-01 #264125941530.94640206758Lightly Polluted
2016-11-30 #1497655930.68427117166Good
2016-11-29 #299131991630.96732146262Lightly Polluted
2016-11-28 #313129981690.95235136959Lightly Polluted
2016-11-27 #21995701280.74634106863Good
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.