Xi'an Air Quality Index

Heavily Polluted(Class E)
(January 20th,2018 ,06:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:PM2.5
Health Implications:Exercise tolerance is reduced in people with heart and lung conditions;healthy people may exhibit symptoms.
Suggestion:People with heart or lung disease, older adults, and children should avoid all physical activity outdoors. Everyone else should avoid prolonged or heavy exertion.

Xi'an PM2.5

1-hour PM2.5: 178.54μg/m3,24-hour PM2.5: 174.46μg/m3.
1-hour PM2.5 ranks #321 in China by ascending,total 367 cities.
1-hour PM10: 245.46μg/m3,24-hour PM10: 247.95μg/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 12021521922.1134392026Heavily Polluted
Site 22181682042150353647Heavily Polluted
Site 32121622171.3108364948Heavily Polluted
Site 42331832462.2137392450Heavily Polluted
Site 52351852791.9139274843Heavily Polluted
Site 62021522321.9112253540Heavily Polluted
Site 72321822743.2157401329Heavily Polluted
Site 82441942661.7113277164Heavily Polluted
Site 92351852511.8123343750Heavily Polluted
Site 102081581911.464229567Heavily Polluted
Site 113152653912.8134371745Severely Polluted
Site 122201702281.796417669Heavily Polluted
Site 132151652201.996295961Heavily Polluted

Xi'an AQI Ranking

Xi'an AQI ranks #318 in China(total 367),defeat 13% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2018-01-19 #2732031532352.435101325038Heavily Polluted
2018-01-18 #2961891422242.40493362518Moderately Polluted
2018-01-17 #2961911432472.10280316451Moderately Polluted
2018-01-16 #3362592092832.78101338154Heavily Polluted
2018-01-15 #3573422913443.24112384630Severely Polluted
2018-01-14 #3583272773182.91111376444Severely Polluted
2018-01-13 #3592842332842.751109422317Heavily 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.