London's Pulse: Medical Officer of Health reports 1848-1972

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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London

Carshalton 1957

[Report of the Medical Officer of Health for Carshalton]

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Table: Smoke and Atmospheric Sulphur Dioxide

Smoke and Atmospheric Sulphur Dioxide

MonthSmoke(Milligrams per 100 cubic metres)S.O,2.(Parts per 100 million)
Highest Daily ReadingLowest Daily ReadingAverageDaily ReadingHighest Daily ReadingLowest Daily ReadingAverageDaily Reading
January26.261.969.5712.41.34.7
February28.772.0112.149.51.13.9
March17.062.907.066.41.02.8
April15.623.027.587.61.84.3
May8.662.074.976.60.73.5
June6.900.503.117.60.73.0
July4.140.501.484.20.41.3
August6.490.512.203.40.40.9
September8.801.003.483.20.41.3
October23.792.0110.389.60.73.6
November23.781.5610.7011.50.64.7
December60.042.0114.4223.51.86.8
Whole year60.040.507.2023.50.43.4

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Prevention of Damage by Pests Act, 1949
As in past years rodent destruction was carried out according to a
programme agreed with the Minister of Agriculture, Fisheries & Food.
Eight thousand six hundred and ninety-five visits were made by the Rodent
Operatives concerning 1,427 properties and 322 rat and mouse infestations
found. Of that number 268 were found in private premises, 43 in business
premises, 11 in Council premises.

Table: and the other in November. The results are shown in the following table, together with the three previous years :—

and the other in November. The results are shown in the following table, together with the three previous years :—

May TreatmentNovember Treatment
19541955195619571954195519561957
Manholes baited166186188194172193191199
Manholes in which takes of prebait were recorded6556676253577583
Percentage of manholes showing infestations39.130.135.633.030.829.539.342.7
Percentage in relation to total manholes in district5.74.95.95.74.75.06.67.5

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Swimming Baths
The one swimming bath in the district at the Highfield Hall is owned
by the Council who acquired it from a private owner in 1953. The purification
plant subjects the water to continuous precipitation, filtration and
chlorination. Routine daily testing for free chlorine checks the effectiveness
of this apparatus.
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