HC Deb 08 July 1987 vol 119 cc159-60W
Dr. David Clark

asked the Secretary of State for the Environment (1) if he will provide a table of information outlining nitrogen oxide emissions in grams per kilometre for average cars in service performing standard test cycles using 95 RON petrol, according to (a) the ECE 15–04 urban test cycle and (b) at constant speeds of 90 kilometres per hour and 120 kilometres per hour for the following: (i) the current conventional spark ignition engine with carburettor, (ii) the July 1985 Luxembourg agreement for combined nitrogen oxides and hydrocarbons, (iii) United States 1983 standards and (iv) California 1989 standards;

(2) if he will provide a table of information containing estimates of reductions in nitrogen emissions, additional vehicle production costs and fuel penalty for the following technical systems of exhaust emission control for average cars in service performing standard test cycles using unleaded 95 RON petrol: (a) the current conventional spark ignition engine with carburettor, (b) the July 1985 Luxembourg agreement for combined nitrogen oxides and hydrocarbons, (c) the United States 1983 standards and (d) California 1989 standards.

Mr. Ridley

Information on vehicle emission control costs and performance in the terms set out in the hon. Member's questions is currently being analysed by international experts, including delegates from the United Kingdom, for the Executive Body for the Convention of Long-range Transboundary Air Pollution of the United Nations Economic Commission for Europe. I would expect the Executive Body to approve the final report for publication at its next session in November this year and I will ensure a copy is placed in the Library of the House at the earliest opportunity.