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Trial to cut capital lorry numbers

Island opposes city clean air charges

Car scrappage cash in clean air plans

Nine streets in 'ultra-low emission' scheme

New 'pollution' death inquest urged

'Dry wood only' for wood burning stoves

Edinburgh is busiest ever Scottish airport

Babies in prams 'face more pollution'

Office parking plan to help cut pollution

Even low air pollution may damage heart

May announces new environment bill

Study links pollution to hospital visits

The flying lab testing wildfire smoke. Video, 00:02:25The flying lab testing wildfire smoke

Electric car points in all new homes planned

Air pollution linked to child's death

Reality Check: Do clean air zones work?

'Clean air zone is bad for business' Video, 00:00:42'Clean air zone is bad for business'

Take a pollution tour of Birmingham. Video, 00:01:44Take a pollution tour of Birmingham

City's new plans for £50 clean air tax

Clearing the air in Brum - at what cost?

New 50mph limits to tackle pollution

Older cars face Glasgow city centre ban

First electric bus for Cardiff