Air pollution in the UK is causing 40,000 early deaths a year and costing the economy over £20 billion, according to a new report published by the Royal Colleges of Physicians and Paediatrics and Child Health.
Liberal Democrat MEP Catherine Bearder, a lead negotiator on the EU's new air quality law, commented:
"We can only tackle problems like air pollution by working together across borders.
"Almost half of deadly particulate pollution in the UK comes from overseas. That is why strong EU laws are needed to ensure every sector and country plays its part in improving air quality.
"The massive health costs to our society outlined in this report show that taking action now to tackle air pollution would more than pay for itself in the long-term."