§ 50. Dr. Stross
asked the Minister of Transport whether, in view of the rising potential danger of sulphur pollution from public service and other vehicles powered by diesel engines which discharge their exhaust gases at ground level, he will take steps to ensure that diesel fuels should not contain more than a prescribed maximum sulphur content.
§ Vice-Admiral Hughes Hallett
No. According to the evidence available to me the amount of sulphur in the atmosphere derived from diesel vehicles is small in comparison with that derived from domestic and industrial fires and no effects on health have yet been demonstrated. The sulphur content of diesel fuel for road vehicles in this country has been substantially reduced in recent years with a view to increasing engine life. Any further reduction would increase the price of the fuel appreciably.