§ Mr. ButlerTo ask the Secretary of State for the Environment what information he has on the total amount of benzene emitted to the atmosphere by combustion engines in the United Kingdom.
§ Mr. BaldryBenzene emissions into the atmosphere have been estimated by the Harwell laboratory in a report: "Hydrocarbon involvement in Photochemical Ozone in Europe, AERE-R 13736". Copies of the report have been deposited in the Library of the House. In 1987 total benzene emissions for the United Kingdom amounted to about 36,000 tonnes, of which 61 per cent. has been attributed to petrol vehicle exhaust, 21 per cent. from the evaporation of motor spirit and 10 per cent. from diesel vehicle exhaust.