Pollutant Averaging Time Interim Targets Interim Targets Interim Targets Interim Targets AQG Evidence Certainty
PM2.5, µg/m3 Annual 35 25 15 10 5 High
24-houra 75 50 37.5 25 15 High
PM10, µg/m3 Annual 70 50 30 20 15 High
24-houra 150 100 75 50 45 High
O3, µg/m3 Peak seasonb 100 70 - - 60 Low-moderate
8-houra 160 120 - - 100 High
NO2, µg/m3 Annual 40 30 20 - 10 Moderate-high
24-houra 120 50 - - 25 High
SO2, µg/m3 24-houra 125 50 - - 40 Low-high
CO, mg/m3 24-houra 7 - - - 4 Moderate