Xi'an Air Quality Index

Moderately Polluted(Class D)
(January 18th,2019 ,05:00:00 AM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Members of sensitive groups may experience more serious health effects,may impact the heart,respiratory system of healthy groups.
Suggestion:People with heart or lung disease, older adults, and children should avoid prolonged or heavy exertion; everyone else should reduce prolonged or heavy exertion.

Xi'an PM2.5

1-hour PM2.5: 120.38μg/m3,24-hour PM2.5: 88.09μg/m3.
1-hour PM2.5 ranks #340 in China by ascending,total 367 cities.
1-hour PM10: 180.92μg/m3,24-hour PM10: 138.45μg/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 1115871562931279Lightly Polluted
Site 2123931421.4851355Lightly Polluted
Site 3117881261.5931655Lightly Polluted
Site 41731311811.7871356Moderately Polluted
Site 5130991411.4791144Lightly Polluted
Site 61961253411.1931055Moderately Polluted
Site 71371041541.3722355Lightly Polluted
Site 82421922062.4863289Heavily Polluted
Site 92491992761.9761344Heavily Polluted
Site 10125951421.681644Lightly Polluted
Site 111451111671.671181012Lightly Polluted
Site 121561191441.2861567Moderately Polluted
Site 131601221761.3861444Moderately Polluted

Xi'an AQI Ranking

Xi'an AQI ranks #340 in China(total 367),defeat 7% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-01-17 #279102761241.23872196442Lightly Polluted
2019-01-16 #1826636800.95352174233Good
2019-01-15 #1717036890.72741126458Good
2019-01-14 #3362742242622.11492195739Heavily Polluted
2019-01-13 #3372872372802.58798192919Heavily Polluted
2019-01-12 #3342632132582.21584124329Heavily Polluted
2019-01-11 #3372331822181.95973103021Heavily Polluted
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.