§ Mr. Adleyasked the Secretary of State for Trade and Industry, whether he will state the percentage of air pollution in the United Kingdom attributable, respectively, to aircraft, to industrial pollution, and to the internal combustion engine.
§ Mr. NobleIndustrial and domestic pollution contributes about 90 per cent. of the total air pollution in the United Kingdom as a whole. Internal combustion engines contribute the remaining 10 per cent. of which aircraft engines provide 0.1 per cent.