Pollution still high across England and south Wales

Pollution levels remain 'high' across England and south Wales and 'very high' in London, the Department for Environment, Food and Rural Affairs (Defra) has said.

Read: Sharp rise in 999 calls as parts of UK hit by smog


High levels of pollution expected to clear

Air pollution levels remain high across parts of England and Wales but are expected to reduce later today. The South East and Greater London are still experiencing "high" levels of pollution, Defra warns.