Report from the National Audit Office finds overall improvement in air quality but does not expect to meet EU targets until 2021
The cost of health impacts from air pollution, including fine particulate matter and nitrogen oxides, is estimated at £20bn. Nearly 30,000 deaths were thought to be caused in 2008 by fine particulate matter pollution, some of it caused by diesel cars, according to the report. About 13% of fine particulate matter pollution is thought to come from diesel engines. This is in spite of improving air quality overall.