NO2 <16 ug/m3 NO2 16-19 ug/m3 NO2 19-22 ug/m3 NO2 22-25 ug/m3 NO2 25-28 ug/m3 NO2 28-31 ug/m3 NO2 31-34 ug/m3 NO2 34-37 ug/m3 NO2 37-40 ug/m3 NO2 40-43 ug/m3 NO2 43-46 ug/m3 NO2 46-49 ug/m3 NO2 49-52 ug/m3 NO2 52-55 ug/m3 NO2 55-58 ug/m3 NO2 >58 ug/m3
<16 16 19 22 25 28 31 34 37 40 43 46 49 52 55 >58
Passes annual mean objective Fails annual mean objective