HC Deb 12 February 1964 vol 689 c64W
72. Mr. Sorensen

asked the Minister of Transport what reports he has received recently in respect of the emission of exhaust fumes and smoke by diesel-engined vehicles; to what extent prosecutions for this offence have increased during the past 12 months; and whether new vehicles of this type have proved to be free from this occurrence.

Mr. Galbraith

The report on a nationwide check of over 25,000 diesel-engined vehicles made in September, 1963, showed that the proportion emitting excessive smoke or fumes was 10 per cent. Figures for prosecutions in 1963 are not yet available, but there were two-thirds more in 1962 than in 1961. New vehicles can cause the same nuisance if their engines are not properly maintained and adjusted.