This is the best summary I could come up with:
The number of the most polluting vehicles driven in London has fallen by almost half since the capital’s ultra-low emission zone (Ulez) was expanded, taking almost 80,000 older cars off the roads.
About 77,000, or 45%, fewer non-compliant cars and vans were detected on average a day in September, the first month of operation of the expanded zone – compared with June 2023.
TfL and Khan have said any net revenue raised through the Ulez will be reinvested into public transport, including the expansion of bus services in outer London.
Rishi Sunak’s government has used the expansion of Ulez to attack political opponents over what it has called “Labour’s war on motorists”, part of a battle against green policies it hopes could prove popular with voters.
The TfL director of strategy and policy, Christina Calderato, said the figures showed that the Ulez was “highly effective in taking the oldest, most polluting vehicles off the roads”.
Analysis of how much the expanded Ulez has affected air pollution in the capital is due to be published after six months of operation, with the data collected from 150 monitoring stations over a longer term to allow for factors such as weather.
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