HC Deb 18 July 1957 vol 573 cc145-6W
91. Mr. P. Noel-Baker

asked the Minister of Housing and Local Government what was the average annual deposit of solid particles per square mile in the Osmaston Ward of Derby. and in the area around the central police station, during the years 1952, 1953 and 1954.

Mr. H. Brooke

The following is the reply:

DEPOSITED MATTER IN STANDARD GAUGES, EXPRESSED IN TONS PER SQUARE MILE PER ANNUM, 1952–54*
1952 1953 1954
Central Police Station 272 225 261
Osmaston Ward 734 722 775
* The values do not necessarily indicate the average deposition over the whole square mile centred at the deposit gauge.