Xi'an Air Quality Index

70
Good(Class B)
(July 29th,2017 ,02:00:00 AM(UTC+8) Published)
050
100
150
200
300
>500
Excellent
Good
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
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: 50.58μg/m3,24-hour PM2.5: 22.04μg/m3.
1-hour PM2.5 ranks #318 in China by ascending,total 367 cities.
1-hour PM10: 81.91μg/m3,24-hour PM10: 41.18μg/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 17252941.31833538Good
Site 26446691.81923336Good
Site 391381321.92443838Good
Site 47555891.42363335Good
Site 589461281.22772832Good
Site 69369861.62143031Good
Site 7140107-23073436Lightly Polluted
Site 87555781.61753436Good
Site 9---------
Site 105337541.23153334Good
Site 114833361.31765255Excellent
Site 126232741.32443639Good
Site 135637610.92052625Good

Xi'an AQI Ranking

Xi'an AQI ranks #291 in China(total 367),defeat 21% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-07-27 #30111139881.248266200172Lightly Polluted
2017-07-26 #30511543781.134276202176Lightly Polluted
2017-07-25 #2389032750.998317181148Good
2017-07-24 #33112720610.903368212189Lightly Polluted
2017-07-23 #30611025611.04356201171Lightly Polluted
2017-07-22 #31310425631.051356195164Lightly Polluted
2017-07-21 #35713828590.975347275198Lightly 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.