Air Pollution Level
Pollutant Low Moderate High Very High
CO 0 - 7000 7000 - 15000 15000 - 20000 >20000
C6H6 0 - 5 5 - 15 15 - 20 >20
NO2 0 - 100 100 - 150 150 - 200 >200
O3 0 - 100 100 - 140 140 - 180 >180
SO2 0 - 150 150 - 250 250 - 350 >350
PM2.5 0 - 25 25 - 50 50 - 100 >100
PM10 0 - 50 50 - 100 100 - 200 >200
Air Pollution Info