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

Croydon 1935

[Report of the Medical Officer of Health for Croydon]

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No.Sample.Adulteration or Deficiency.Remarks.
213.Milk3 per cent. deficiency in milk fat.Vendor warned.
214.Milk3 per cent, deficiency in milk fat.
229.Milk17 per cent. deficiency in milk fat.Appeal to cow sample proved below minimum. The producers of this milk were given legal warning.
230.Milk5 per cent, added water.
351.Milk3 per cent. deficiency in milk fat.
472.Milk'3 percent. deficiency in milk solids other than milk fat.
133.Smoked Sausage.Sulphur dioxide— 0.003 per cent. equal to 30 parts per million by weight.Vendor warned.
313.JamStrawberry.Contained sulphur dioxide 0.0108 per cent., equal to 108 parts per million by weight.Manufacturers warned.
til.Jam, Red Plum.Deficient in soluble solids to the extent of not less than four percent.Manufacturers warned.
537.Milk44 per cent. deficiency in milk fat.Proceedings taken and costs of £3 Is. incurred.
667.Pork SausageSulphur dioxide— 0.012 per cent., equal to 120 parts per million by weight.Vendor warned.
600.Chopped SuetContained 15 per cent. Rice Flour.Vendor warned.

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Open—Air Swimming Pool—Purley Way.
The Corporation opened a large swimming pool in Purley
Way, near the Aerodrome, in July. Purification of the water is
by means of mechanical filters, and ozone, with a chlorination
Plant as a stand-by. Regular bacteriological examinations were
carried out by the Public Health Department to gauge the purity
the water and the effectiveness of the purification processes.
It was found that ozonsation was insufficient to maintain a proper
standard alone when the load became heavy; and chlorination had
to be carried out. This kept the water in a satisfactory condition.
it is doubtful if ozonisation, as applied in this case, will suffice
alone, as the actual period of contact between the ozone and the
water is short.