The general air quality of the past years is also described by an index.
It provides a general overview of the air quality situation in a given city all the year through and compare to European norms.

The regulations taken into account are some of the annual standards and objectives defined by the European directives. However, this index is aimed at better taking into account long term public exposure to air pollution but can not be used for compliance checking.

Click on a city to see the situation of every individual pollutant taken into account and their historical evolution.

		2007		2008		2009		2007		2008		2009
Andorra
Andorra		-		-		-		1.11		0.75		0.74
Austria
Graz		-		-		-		-		-		-
Innsbruck		-		-		-		-		-		-
Linz		-		-		-		-		-		-
Salzburg		-		-		-		-		-		-
Belgium
Brussels		1.03		0.98		-		0.76		0.73		-
Czech Republic
Brno		1.02		0.94		0.94		0.9		0.68		0.82
Prague		-		-		-		0.81		0.7		0.65
France
Aix-en-provence		-		0.99		1.05		-		0.98		1.07
Angoulême		-		-		-		0.56		0.46		0.49
Annecy		-		-		-		-		-		-
Annemasse		-		-		-		-		-		-
Arles		-		-		-		0.7		-		-
Avignon		-		1.1		1.15		-		0.84		0.86
Bourg-en-Bresse		-		-		-		0.7		0.86		0.81
Cannes		-		1.18		1.02		-		0.94		0.88
Chambéry		-		-		-		-		-		-
Chamonix		-		-		-		-		-		-
Clermont-Ferrand		-		-		-		-		-		-
Dunkerque		-		-		-		-		-		-
Grenoble		1.3		1.28		-		0.85		0.85		-
La Rochelle		0.98		0.9		0.95		0.57		0.57		0.54
Le Havre		0.99		1		0.94		0.58		0.63		0.55
Lens		-		-		-		-		-		-
Lille		-		-		-		-		-		-
Lyon		1.59		1.46		-		0.85		0.92		-
Marseille		-		1.14		1.28		-		0.96		0.89
Martigues		-		-		-		0.72		-		-
Melun		-		-		1.03		0.59		0.5		1.14
Montpellier		-		-		-		-		-		-
Mulhouse		-		-		-		1.01		0.87		0.91
Nancy		-		-		-		-		-		-
Nice		-		1.58		1.14		-		1.2		1.05
Niort		-		-		-		0.53		0.47		0.53
Nîmes		-		-		-		-		-		-
Orléans		0.84		0.95		-		0.69		0.64		-
Paris		1.95		1.75		2.07		1.48		0.81		0.82
Perpignan		-		-		-		-		-		-
Poitiers		-		-		0.88		0.52		0.51		0.52
Reims		-		-		-		0.63		0.59		0.57
Rennes		0.9		0.74		-		0.53		0.44		-
Rouen		1.12		1.01		0.98		0.69		0.65		0.61
Saint-Etienne		1.14		0.98		-		0.81		0.76		-
Salon de Provence		-		-		-		0.7		-		-
Strasbourg		1.14		1.06		1.14		1.06		0.92		0.88
Toulon		-		1.18		1.22		-		0.85		0.99
Toulouse		0.92		0.82		0.89		0.64		0.54		0.73
Tours		0.76		0.73		-		0.63		0.57		-
Valence		1.24		1.24		-		0.91		0.84		-
Valenciennes		-		-		-		-		-		-
Germany
Berlin		1.09		1.08		-		0.92		0.78		-
Freiburg		-		-		-		-		-		-
Karlsruhe		-		-		-		-		-		-
Mannheim		-		-		-		-		-		-
Munich		-		-		-		-		-		-
Stuttgart		-		-		-		-		-		-
Italy
Padova		1.32		1.28		1.2		1.69		1.29		1.03
Rome		1.52		1.35		-		1.15		1.12		-
Netherlands
Amsterdam		0.95		0.85		1.01		0.5		0.63		0.73
Rotterdam		0.91		0.94		0.86		0.65		0.7		0.61
Norway
Oslo		0.87		0.85		-		0.59		0.57		-
Poland
Gdansk		-		-		-		0.37		0.41		0.45
Gdynia		-		-		-		0.42		0.44		0.43
Sopot		-		-		-		0.47		0.43		0.47
Tczew		-		-		-		0.5		0.41		0.54
Slovenia
Maribor		1.07		0.93		0.84		-		-		-
Spain
Almeria		-		-		-		-		-		-
Bahia Algeciras		-		-		-		-		-		-
Cadiz		-		-		-		-		-		-
Cordoba		-		-		-		-		-		-
Granada		-		-		-		-		-		-
Huelva		-		-		-		-		-		-
Jaen		-		-		-		-		-		-
Jerez		-		-		-		-		-		-
Madrid		-		-		-		-		-		-
Malaga		-		-		-		-		-		-
Sevilla		1.17		0.9		-		1		1.13		-
Switzerland
Basel		-		-		-		-		-		-
Zurich		0.91		0.9		0.95		0.78		0.65		0.61
United Kingdom
Bexhill		-		-		-		-		-		-
Bristol		-		1.41		-		-		0.66		-
Chichester		-		-		-		-		-		-
Coventry		-		-		-		-		-		-
Eastbourne		-		-		-		-		-		-
Horsham		-		-		-		-		-		-
Leicester		-		-		-		-		-		-
Lewes		-		-		-		-		-		-
London		1.42		1.38		-		0.91		0.91		-
Storrington		-		-		-		-		-		-