Xi'an Air Quality Index

Good(Class B)
(November 21st,2018 ,08:00:00 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: 27.31μg/m3,24-hour PM2.5: 44.93μg/m3.
1-hour PM2.5 ranks #157 in China by ascending,total 367 cities.
1-hour PM10: 70.69μg/m3,24-hour PM10: 92.58μg/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 1451445167162056Excellent
Site 25522601.18616852Good
Site 36026701.39714556Good
Site 45724641.18412-52Good
Site 57123920.68413549Good
Site 66135711675622Good
Site 77339961.37627744Good
Site 84922441.19711552Excellent
Site 9865312217510551Good
Site 105129511.1788659Good
Site 116127711.778191661Good
Site 126024690.99015959Good
Site 135717641.18812658Good

Xi'an AQI Ranking

Xi'an AQI ranks #194 in China(total 367),defeat 47% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-11-20 #317110831361.476114139Lightly Polluted
2018-11-19 #29387591131.32269143525Good
2018-11-18 #2216033680.96444127862Good
2018-11-17 #1724529420.81836104840Excellent
2018-11-16 #2515226530.7733482725Good
2018-11-15 #2858552119140101814Good
2018-11-14 #3431861401971.766681298Moderately 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.