Assessing air quality with regards to its effect on human health in the European Union through air quality indices

► CO and SO2 do not form a public health hazard at the sites studied. ► 2007 NO2 “moderate pollution”/“unhealthy for sensitive” days reach 33/1.5% respectively. ► 50-70% of days present moderate risk of increased total mortality at all sites. ► PM10 contributes to roughly 30% to the risk of increased total mortality at all sites. ► O3 and NO2 contributions are quite variable depending on the station type.