- Ulez: Cleaner air for Londoners after expansion, study finds BBC.com
- Dramatic fall in London’s levels of deadly pollutants after Ulez expansion The Guardian
- Cleaner air for Londoners after Ulez – report BBC
- London-wide Ulez cut pollution most in the areas that opposed it The Times
- Sadiq Khan’s Ulez expansion hurt high streets, report reveals The Telegraph
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