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Legend:
Air Quality Index Value
EU Standards are
exceeded by one
pollutant or more		   > 1
EU Standards are
fulfilled on average		   1
The situation is better
than the norms requirements on average		   < 1
London Yearly Air Quality Index

Year NO2 Year average PM10 year average PM10 exceedences daily average O3, # of days with 8-hour average >=120µg/m3 SO2 year average Benzene year average City Index
2006 2.6 0.73 0.86 0.68 0.25 - 1.39
2007 2.6 0.73 1 0.12 0.2 - 1.44
2008 2.6 0.68 0.83 0.28 0.15 - 1.37

London Roadside Annual index chart



Year NO2 Year average PM10 year average PM10 exceedences daily average O3, # of days with 8-hour average >=120µg/m3 SO2 year average Benzene year average City Index
2006 1.85 0.58 0.34 1.28 0.25 - 1.01
2007 1.9 0.55 0.46 0.48 0.2 - 0.85
2008 1.78 0.53 0.29 0.68 0.15 - 0.82

London Background Annual index chart

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