HC Deb 30 July 1959 vol 610 cc152-3W
80. Mr. Fletcher-Cooke

asked the Minister of Housing and Local Government and Minister for Welsh Affairs what changes there have been in the amount of smoke discharged due to fuel combustion in Great Britain since 1952.

Mr. H. Brooke

The amount of smoke discharged to the atmosphere in Great Britain is estimated to have been about 15 per cent. less in 1958 than in 1952. At ground level the measurements taken over the country as a whole record only a slight decrease, no doubt because so much of the smoke is still discharged at a low level from domestic chimneys. In the London area, however, there has been a marked decrease in the average concentration of smoke at ground level.