Air pollution

Do clean-air zones like London's Ulez work?

Sunak hits out over Ulez but Khan says charge is vital for clean air

Air pollution fall seen in three road areas

Mayor accused of 'quashing research' on Ulez

Council spends £100,000 on LEZ-compliant vehicles

Struggling with asthma in world's most polluted city

Number of Glasgow low emission zone fines doubles

Campaign group display fake pollution signs

Ulez expansion: Contested claims examined

PM urges Sadiq Khan to reconsider Ulez plans

London mayor hails 'landmark' Ulez expansion ruling

Council leader issues Ulez warning to London mayor

Air pollution impact on city's health - study

Starmer urges Khan to reflect on clean-air zone

ULEZ has become political football - London mum

ULEZ has become political football - London mum. Video, 00:01:15ULEZ has become political football - London mum

Can houseplants purify the air in your home?

Air quality tested near two schools in Jersey

Does Starmer back mayor or candidate on air pollution fee? Video, 00:01:43Does Starmer back mayor or candidate on air pollution fee?

Why are councils taking London's mayor to court?

Should you wear a mask because of wildfire smoke?

Americans struggle under smoke-filled air. Video, 00:00:41Americans struggle under smoke-filled air

The Documentary Podcast. BBC OS Conversations: Air pollution. Audio, 25 minutesThe Documentary Podcast