§ Mrs. Bridget Prentice
To ask the Secretary of State for the Environment what evidence he has received about the impact of vehicle emissions on air quality in London.
§ Mr. Atkins
The London energy study carried out by the London Research Centre was published on 15 September 1993. It was funded by the European Commission, London Electricity plc and the Department of the Environment. One of the principal outputs of the study was a very detailed inventory of energy use, and the resultant emissions of pollutants to the London atmosphere covering almost 2,000 sq km in and around London. The table illustrates the contribution from road transport for each pollutant in 1991.
London road transport 1991 Percentage of total emissions Carbon dioxide (as carbon) 33 Sulphur dioxide 22 Black smoke 96 Carbon monoxide 99 Nitrogen oxides 76 Volatile organic compounds 97