The three-year running mean of PM2.5 concentrations (2008–2010) is similar to the method used to calculate the average exposure indicator. Compiled data reflects background (non-traffic and non-industrial) urban and suburban stations.
Results for countries marked with an asterisk are based on less than three years of data.
The orange dots correspond to figures provided by the EU Member States in the air quality questionnaire.
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On very hot days use public transport rather than your car.
Car exhaust emissions react with sunlight and heat to cause polluting gases such as tropospheric ozone. This is the main ingredient of poor air quality and photo-chemical smog, which can cause breathing difficulties. To find out the level of ozone pollution across Europe, go to EEA's Live Ozone Map.
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