"More than 90% of people living in European cities breathe air that the UN's World Health Organisation says leads to respiratory problems, heart disease and shortened lives, according to a study published on Tuesday. But because EU legal limits or targets for some pollutants still lag well behind UN recommendations, most countries have been able to downplay the hazards of dirty air despite evidence that it leads to 430,000 shortened lives in Europe every year and costs governments tens of billions of pounds in hospital admissions." (Quoted from article)