Yan'an Air Quality Index

57
Good(Class B)
(May 25th,2019 ,01:00:00 AM(UTC+8) Published)
050
100
150
200
300
>500
Excellent
Good
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants: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.

Yan'an PM2.5

1-hour PM2.5: 21.5μg/m3,24-hour PM2.5: 23.09μg/m3.
1-hour PM2.5 ranks #89 in China by ascending,total 367 cities.
1-hour PM10: 63.75μg/m3,24-hour PM10: 61.68μg/m3.

All Air Monitoring Sites Of Yan'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)
4 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 15523600.7541155Good
Site 22819270.453588Excellent
Site 33419340.448444Excellent
Site 492251340.75461717Good

Yan'an AQI Ranking

Yan'an AQI ranks #148 in China(total 367),defeat 60% cities.

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

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-05-23 #19710318530.501488169163Lightly Polluted
2019-05-22 #2169318490.5174810162151Good
2019-05-21 #2298617490.487437155142Good
2019-05-20 #1836618550.462346129119Good
2019-05-19 #341107341620.356174132115Lightly Polluted
2019-05-18 #3078435920.651346147140Good
2019-05-17 #2858533710.603284150141Good
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.