The expansion of the Ultra Low Emission Zone (ULEZ) to outer London has been highly effective in reducing the proportion and number of older, more polluting vehicles in Greater London, a report by the Greater London Authority has found.1
The ULEZ expansion has also been associated with a fall in air pollutants and better air quality in outer London, said the report.
The zone was expanded to outer London on 29 August 2023, and by February 2024 96.2% of all vehicles driven in the expanded zone were ULEZ compliant—up from 90.9% in June 2023. The February figure is almost …
