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Calls to improve 'watered down' clean air zone

More than half reject city congestion charge plans

Half of outer London vans not fit for ULEZ - data

Pollution fines on hospital visits 'kick in teeth'

Health workers cycle 250km to support ULEZ expansion

City leaders urged to reconsider lorry ban

City's clean air zone generates £4.5m in 6 months

ULEZ: 5,000 scrappage grants approved amid issues

Pollution causes harm at all stages of life - report

ULEZ expansion plans to face judicial review

Council does not say how many drivers fined in CAZ

Road noise makes blood pressure rise, study finds

Students build pollution filters for classrooms

'Green screens' trial to improve school pollution

Wood burners: On smoke patrol in London

Clean air zone charges, times and more explained

Charging begins in city's clean air zone

ULEZ expansion and the price of pollution

'Toxic air caused my son's asthma attack' Video, 00:01:16'Toxic air caused my son's asthma attack'

ULEZ to hit 1m people outside London - report

Authority given £290K to improve air quality

'I want to be on right side of history over ULEZ'