Ulez expansion results in 60% reduction in ‘dirty’ cars in inner London

The expansion of the ultra-low emission zone to the edge of the North and South Circular roads resulted in an astonishing 60 per cent reduction in the number of non-compliant vehicles being driven in inner London.

This included a 63 per cent reduction in the number of “dirty” diesel cars – those which break the Ulez rules and would have to pay the £12.50-a-day levy.