HC Deb 31 July 1963 vol 682 cc71-2W
71. Mr. Dudley Smith

asked the Minister of Transport what further progress has been made by his Department on research into the problem of diesel fumes from heavy lorries and other vehicles; if an effective smoke measurement meter can yet be brought into operation; and if he will make a statement.

Mr. Galbraith

There is no immediate prospect of a meter being developed which could be used from the roadside to make useful observations of smoke emitted by moving vehicles. There are, however, meters which work by attachment to the exhaust pipe of the vehicle to be tested; the possibility of using them as a means of enforcing a stautory standard of smoke emission on roads is being investigated.

The real remedy to the problem of diesel exhaust fumes lies in correct maintenance and operation of engines.