HC Deb 16 July 1957 vol 573 cc111-2W
99. Mr. Russell

asked the Minister of Housing and Local Government to what extent there has been an increase in the pollution of rivers by sewage in recent years.

Mr. H. Brooke

It is impossible to estimate to what extent the pollution of rivers is due to sewage as distinct from other effluents. As I said in reply to the hon. Member for Rugby (Mr. J. Johnson) on 25th June, the overall pollution is, although still serious, decreasing.

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