Air pollution

Air filters for London's polluted schools - mayor

Borough council says area's air quality is improving

Pollution zones to be removed as air improves

Purifier installed to improve station's air quality

High Court action over girl's air pollution death

Clean air campaign shines light on wood burning

Trees with smaller leaves top pollution study

Council draws up plan to block clean air zone

City's clean air zone raises £26m in first year

Bus retrofit failed because of city's hills - MP

Children more vulnerable to air pollution - study

Doctor calls for car idling measures to go further

No road repairs from clean air zone cash, say council

CAZ could be scrapped in 'three to four years'

The Documentary Podcast. BBC OS Conversations: Climate change and the young. Audio, 24 minutesThe Documentary Podcast

The Food Chain. How to stop cooking killing. Audio, 27 minutesThe Food Chain

The school planting trees to keep children safe

Pollution concerns continue despite clean air zone

Toxic gas putting millions at risk in Middle East

Business Daily. Asia's air pollution problem. Audio, 18 minutesBusiness Daily

Indian court's 40-year quest to clean Delhi's foul air

Ulez ruled out despite air quality concerns