Xi'an Air Quality Index

Good(Class B)
(May 20th,2019 ,02:00:00 PM(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: 15.18μg/m3,24-hour PM2.5: 26.09μg/m3.
1-hour PM2.5 ranks #181 in China by ascending,total 367 cities.
1-hour PM10: 54.18μg/m3,24-hour PM10: 108.62μg/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 1---------
Site 24614460.319612469Excellent
Site 3491749-16612065Excellent
Site 45216540.311611870Good
Site 54714470.310511262Excellent
Site 65615620.622610953Good
Site 75514600.416611860Good
Site 8-------74-
Site 9518520.512511968Good
Site 105516590.419511998Good
Site 114517450.37513692Excellent
Site 12611871-13413286Good
Site 135118510.315311066Good

Xi'an AQI Ranking

Xi'an AQI ranks #181 in China(total 367),defeat 51% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-05-19 #26279271080.45264115105Good
2019-05-18 #31287501220.84467610691Good
2019-05-17 #3099339840.655405170151Good
2019-05-16 #26589471270.7195864338Good
2019-05-15 #293108551650.713496146117Lightly Polluted
2019-05-14 #3551901063290.847394532Moderately Polluted
2019-05-13 #3503661694720.475407133113Severely 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.