Nanjing Air Quality Index

Lightly Polluted(Class C)
(August 21st,2017 ,05:00:00 PM(UTC+8) Published)
Lightly Polluted
Moderately Polluted
Heavily Polluted
Severely Polluted
Main Air Pollutants:O3-8h
Health Implications:Members of sensitive groups may experience health effects
Suggestion:People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion.

Nanjing PM2.5

1-hour PM2.5: 26.89μg/m3,24-hour PM2.5: 18.5μg/m3.
1-hour PM2.5 ranks #209 in China by ascending,total 367 cities.
1-hour PM10: 52.56μg/m3,24-hour PM10: 38.06μg/m3.

All Air Monitoring Sites Of Nanjing 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)
9 Monitoring SitesAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
Site 110526471.12129209184Lightly Polluted
Site 25929680.7179166169Good
Site 39028352.4235192168Good
Site 416420531.62710327254Moderately Polluted
Site 51092244-2019218182Lightly Polluted
Site 65819581.33210166127Good
Site 77944770.81710183159Good
Site 811921260.61716237186Lightly Polluted
Site 98333650.74815186153Good

Nanjing AQI Ranking

Nanjing AQI ranks #349 in China(total 367),defeat 5% cities.

Last 7 days rankings and AQI data of Nanjing City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2017-08-20 #934711230.95281110693Excellent
2017-08-19 #2236416421.0133414142116Good
2017-08-18 #2357214411.1323519158125Good
2017-08-17 #2467916421.1074114161134Good
2017-08-16 #1665915381.122471210296Good
2017-08-15 #1856527530.951269128117Good
2017-08-14 #2346823430.9712110131121Good
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.