Doctors urge Sadiq Khan to cancel Silvertown tunnel over pollution fears

GPs tell London mayor the environmental hazard' will disproportionately affect capital's poorest people

Doctors have accused Sadiq Khan of betraying his commitment to view pollution as a social justice issue, as they handed in a letter to his office calling for him to cancel a major new road tunnel.

The Silvertown tunnel will pass beneath the Thames between Greenwich and Newham, one of London's most deprived riverside boroughs. Experts say it will massively increase air pollution faced by some of the capital's poorest people.