Directive 2008/50/EC of the European Parliament and of the Council on ambient air quality and cleaner air for Europe.
This Directive defines objectives for ambient air quality designed to avoid, prevent or reduce harmful effects on human health and the environment as a whole. To this end, it sets out measures for the assessment of ambient air quality in Member States as well as for obtaining information on ambient air quality in order to help combat air pollution and nuisance. The Directive aims at increasing cooperation between the Member States in reducing air pollution.