§ Mr. DonohoeTo ask the Secretary of State for Transport (1) what is the difference in benzene emissions between leaded petrol, premium unleaded petrol and super premium unleaded petrol; and what is the source of the figures.
(2) if he will make a statement on the difference in the aromatics content of leaded petrol, premium unleaded petrol and super premium unleaded petrol; and what is the source of the figures.
§ Mr. NorrisBenzene in petrol is controlled at 5 per cent. maximum by EC directive and data from the Associated Octel Company show that United Kingdom fuels average some 2 per cent. to 3 per cent. with no significant trends between the various grades. The same data show that the average aromatic content of unleaded petrol in the United Kingdom is slightly higher than of leaded petrol although, in many cases, samples of leaded petrol may have a higher armomatic content than samples of unleaded petrol.
§ Mr. DonohoeTo ask the Secretary of State for Transport if his Department carries out independent analyses of the contents of leaded, unleaded and super premium unleaded petrol.
§ Mr. NorrisNo.
§ Mr. DonohoeTo ask the Secretary of State for Transport in what respects the contents of petrol supplied from refineries in different areas of the United Kingdom differ; and what statistics the Government maintain on the source and content of petrol.
§ Mr. NorrisInformation regarding the content of petrol from different refineries is not available. The Government do not routinely maintain statistics on the source and content of petrol.