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

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
  • From the section London
Go to next video: How bad is air pollution for us?