Mayors of 20 European cities attack weak EU diesel pollution limits

Mayors from Paris, Madrid and Athens say loophole in NOx emissions tests puts citizens' health at risk

The mayors of 20 European cities including Paris, Madrid and Athens have attacked the European Union for allowing a loophole in diesel cars' pollution limits, just months after the VW emissions scandal.

MEPs in February failed to veto a proposal that watered down real world tests on limits for NOx pollution emitted by new diesel cars, a move which the mayors said was unfair and wrong, and stopped them from protecting citizens' health.