Campaigners call for closed shop doors
Media playback is unsupported on your device

London health campaigners call for closed shop doors

Campaigners are calling for London's shopkeepers to close shop doors to help cut pollution levels for customers and staff.

But many retailers have said they are reluctant to change as they fear it could affect trade.

  • 03 Apr 2017
Go to next video: How bad is air pollution for us?