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
Caen 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
2010 0.88 0.65 0.4 - - 0.11 0.64
2011 0.85 0.6 0.54 - - 0.21 0.66
2012 0.83 0.53 0.51 - - 0.21 0.62

Caen 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
2010 0.5 0.5 0.31 0.24 - - 0.39
2011 0.5 0.55 0.57 0.24 - - 0.47
2012 0.45 0.48 0.49 0.36 - 0.13 0.44

Caen Background Annual index chart

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