Nanjing Air Quality Index

Good(Class B)
(May 20th,2019 ,03:00:00 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.

Nanjing PM2.5

1-hour PM2.5: 18.56μg/m3,24-hour PM2.5: 22.84μg/m3.
1-hour PM2.5 ranks #234 in China by ascending,total 367 cities.
1-hour PM10: 53.38μg/m3,24-hour PM10: 78.83μg/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 1489480.611810389Excellent
Site 25910670.5912119107Good
Site 3589660.3510113100Good
Site 4-68-0.514810893-
Site 5518510.397121107Good
Site 63716370.331411196Excellent
Site 75221540.5148118101Good
Site 85416580.261211499Good
Site 94610460.7149117105Excellent

Nanjing AQI Ranking

Nanjing AQI ranks #172 in China(total 367),defeat 53% cities.

Last 7 days rankings and AQI data of Nanjing City

Date/AQI rankingAQIPM2.5PM10CONO2SO203-1hO3-8hLevel
2019-05-19 #1145120370.6182211111101Good
2019-05-18 #604612240.4391699691Excellent
2019-05-17 #2547655860.8514411150108Good
2019-05-16 #1195434570.67134109873Good
2019-05-15 #664424430.51261310786Excellent
2019-05-14 #30411341730.6833210199174Lightly Polluted
2019-05-13 #2278351920.8234313154139Good
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.