Xi'an Air Quality Index

Good(Class B)
(November 19th,2017 ,02:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM10
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.

Xi'an PM2.5

1-hour PM2.5: 71.54μg/m3,24-hour PM2.5: 39.49μg/m3.
1-hour PM2.5 ranks #331 in China by ascending,total 367 cities.
1-hour PM10: 145μg/m3,24-hour PM10: 100.22μg/m3.

All Air Monitoring Sites Of Xi'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)
13 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 1101711521.5673355Lightly Polluted
Site 284621131.9693189Good
Site 391581310.8812877Good
Site 481581111.4673034Good
Site 599741361.4702855Good
Site 686621211.6725555Good
Site 7105651591.9701634Lightly Polluted
Site 889581271.5722456Good
Site 987511240.7501666Good
Site 1097721431.3673899Good
Site 111981482921.6593455Moderately Polluted
Site 1292581331.1722655Good
Site 13123931431.3612677Lightly Polluted

Xi'an AQI Ranking

Xi'an AQI ranks #326 in China(total 367),defeat 11% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-11-17 #3582912413232.7999830169Heavily Polluted
2017-11-16 #3592612112842.639100261617Heavily Polluted
2017-11-15 #3551831381972.31980294633Moderately Polluted
2017-11-14 #3581851392042.29679234228Moderately Polluted
2017-11-13 #3581781342242.14890195132Moderately Polluted
2017-11-12 #352124941681.88968243723Lightly Polluted
2017-11-11 #31886511211.51659212619Good
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.