Keep it clean - campaign for drivers to switch off when parked in London.
Drivers are being urged not to leave their engines running while parked or waiting in a bid to help cut harmful pollution in London and improve people's health.
London Councils is backing a new campaign encouraging drivers to switch their engines off when stationary for more than a minute rather than leaving them running. London's councils have powers to fine drivers if they leave their engines running at the roadside.
Councillor Catherine West, Chair of London Councils' Transport and Environment Committee, said: “Exhaust fumes are bad for our health and for the environment. More than 4,000 Londoners die prematurely every year because of poor air quality, so drivers can make a huge difference. Turning off your engine even for a short while when you are parked or loading at the roadside will make London’s air a lot cleaner and save you fuel.”