HC Deb 17 February 1953 vol 511 cc116-8W
Mr. Ellis Smith

asked the Parliamentary Secretary to the Ministry of Works if he will state the average insoluble deposit, soluble deposit, total solids, sulphur dioxide and concentration of smoke up to the latest date in 1952, for Stoke-onTrent, Salford, Manchester, Armley Park, Leeds, Philips Park, Manchester, Hooks Green, Drinkwater Park, Salford, Trafford Park, Salford, Portwood, Stockport, Health Centre, Leeds, and Buile Hill Park, Salford, respectively; and the average throughout the country in tabular form.

Mr. Molson

The figures for 1950–52 are not yet available in summary form. The following tables give the latest available figures, for the five year period 194449, for those places mentioned at which observations are made. Corresponding figures for the five-year period 1939 to 1944 and for earlier years are given in the 26th Report of the Atmospheric Pollution Research Committee published

MEASUREMENTS OF DEPOSITED MATTER AVERAGES FOR THE FIVE YEARS 1ST APRIL, 1944, TO 31ST MARCH, 1949 EXPRESSED AS TONS PER SQUARE MILE PER MONTH
Station Insoluble Deposit Soluble Deposit Total Solids
STOKE-ON-TRENT:
Leek Road 10.0 6.7 16.7
Longton 10.8 7.5 18.3 2 years' average, 1944–46.
Tunstal 9.0 6.7 15.7 3 years' average, 1944–46, 1948–49.
SALFORD:
Broughton Senior School 13.0 7.2 20.2
Drinkwater Park 9.6 8.0 17.6
Ladywell Sanatorium 15.0 7.9 22.9
MANCHESTER:
Baguley 4.2 6.2 10.4
Booth Hall 7.8 6.6 14.4
Heaton Park 9.5 6.9 16.4
Monsall 12.8 8.8 21.6
Philips Park 30.9 10.8 41.7
Rusholme 11.4 7.9 19.3
Withington 7.3 6.4 13.7
LEEDS:
Armley Park 20.1 8.7 28.8 2 years' average, 1947–49.

SULPHUR DIOXIDE BY THE VOLUMETRIC METHOD
Averages for the five years 1st April, 1944, to 31st March, 1949. Results expressed in volumes of sulphur dioxide per 100 million volumes of air.
Station Mean
SALFORD:
Regent Road 11
MANCHESTER:
Rusholme 18 1 year only, 1948-49.

SULPHUR MEASUREMENTS BY THE LEAD PEROXIDE METHOD
Averages for the five years 1st April, 1944, to 31st March, 1949. Results expressed as milligrams of sulphur trioxide per day per 100 square centimetres of exposed surface.
Station Mean
STOKE-ON-TRENT:
Leek Road 1.81
SALFORD:
Ladywell Sanatorium 2.28
Regent Road 2.41
MANCHESTER:
Monsall 3.41
Rusholme 2.14
Withington 1.47
LEEDS:
Armley Park 2.47 2 years' average, 1947–49.

H.M. Stationery Office. No average figure for the whole country can be given.

MEASUREMENTS OF SUSPENDED IMPURITY (SMOKE)
Averages for the five years 1st April, 1944, to 31st March, 1949. Results expressed in milligrams per 100 cubic metres of air.
Station Mean
STOKE-ON-TRENT:
Leek Road 42
SALFORD
Regent Road 58 1 year only, 1948–49.
MANCHESTER
Rusholme 25 1 year only, 1948–49.

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