Air pollution

Steeper fines for idling car 'repeat offenders'

Road noise makes blood pressure rise, study finds

Students build pollution filters for classrooms

'Green screens' trial to improve school pollution

Child protection referral lodged after tree felled

Bus gate plans 'disastrous' for business

Wood burners: On smoke patrol in London

Clean air zone charges, times and more explained

ULEZ expansion and the price of pollution

Authority given £290K to improve air quality

ULEZ expansion is anti-worker, Unite says

First Minister's Questions: Trefnydd Lesley Griffiths stands in

Ella Kissi-Debrah's mum still fighting 10 years on

ULEZ cut London emissions by 46% - City Hall data

Study links London dirty air and teen blood pressure

Polluting cars could ramp up pay-and-display fees

London emission zone extension 'extremely unfair'

Pollution-battling backpack wins design prize

Clean air zone rule 'unfair on Blue Badge holders'

If You Don't Know. Let’s talk air pollution… it could be damaging your health. Audio, 34 minutesIf You Don't Know

Fears as emissions zone expands to London boundary

Mayor issues high air-pollution alert for London