HC Deb 28 March 1956 vol 550 cc194-5W
24. Mr. Sorensen

asked the Minister of Transport and Civil Aviation if he is satisfied that the problem of the effective treatment of fumes from diesel driven omnibuses has now been solved as a result of his Department's action in 1954; and, in view of the importance of this problem due to replacement of trolley by diesel omnibuses, if he will make a further statement.

Mr. Watkinson

I understand that the Fuel Research Station is investigating the possibility of reducing substances which might be harmful in motor vehicle exhausts including those of diesel engines. Work on the various constituents of exhaust fumes under different running conditions is being carried out both by the Fuel Research Station and the Medical Research Council.