Xi'an Air Quality Index

Excellent(Class A)
(September 27th,2017 ,03:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:-
Health Implications:Air quality is satisfactory,almost no air pollution.

Xi'an PM2.5

1-hour PM2.5: 12.33μg/m3,24-hour PM2.5: 16.6μg/m3.
1-hour PM2.5 ranks #92 in China by ascending,total 367 cities.
1-hour PM10: 24.17μg/m3,24-hour PM10: 32.3μg/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 1209200.71445762Excellent
Site 2228220.81786054Excellent
Site 32310230.81516761Excellent
Site 43114310.81374340Excellent
Site 52813280.82284949Excellent
Site 619890.91455956Excellent
Site 71611130.918104538Excellent
Site 83914390.81974751Excellent
Site 9---------
Site 102612260.79106866Excellent
Site 113421340.93651819Excellent
Site 122514251.221135252Excellent
Site 132114200.5836760Excellent

Xi'an AQI Ranking

Xi'an AQI ranks #54 in China(total 367),defeat 85% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-09-26 #6940183413274842Excellent
2017-09-25 #2136138711.1763775449Good
2017-09-24 #349124931931.7417518137109Lightly Polluted
2017-09-23 #336120841891.6987523165139Lightly Polluted
2017-09-22 #28692511331.2773177051Good
2017-09-21 #306111541221.2126914209172Lightly Polluted
2017-09-20 #2577635881.1266114150120Good
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.