ULEZ cuts number of worst polluting cars in central London

Mayor hails 'significant impact' in first month of capital's ultra-low emission zone

The number of the worst polluting cars and vans driving into central London dropped sharply in the first month of the ultra-low emissions zone.

Initial figures show that on average 9,400 fewer such vehicles entered central London each day in April compared with March. There were 36,000 fewer than in February 2017 when the ultra-low emission zone plans were announced, though much of that drop could be attributed to drivers switching to cleaner vehicles.