Ulez: Expansion has improved air quality says City Hall report - BBC
- Ulez: Expansion has improved air quality says City Hall report BBC
- Ulez expansion led to significant drop in air pollutants in London, report finds The Guardian
- Breath of fresh air: Ulez expansion cut pollution 'better than expected' Evening Standard
- Sadiq Khan gloats as Ulez causes pollution levels to drop in London - ‘Working better than expected!’ GB News
- First Report on Khan's ULEZ Expansion Admits Impossible to Measure Whether Emissions Cut At All Guido Fawkes