Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Westminster, City of]
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Atmospheric Pollution
Investigation into the atmospheric pollution in the City was continued during the year at three sites, Mayfair, Pimlico and Charing Cross, where deposit gauges, which measure the deposited pollution, and lead peroxide cylinders, which measure the sulphur activity, are sited. The following table gives the results of the monthly analyses, and shows separately the amounts of insoluble and soluble constituents.
Month. | Monthly deposits impurities-tons per square mile. | ||||||||
---|---|---|---|---|---|---|---|---|---|
Mayfair. | Pimlico. | Charing Cross. | |||||||
Insol. | Sol. | Total. | Insol. | Sol. | Total. | Insol. | Sol. | Total. | |
January | 14.42 | 21.48 | 35.90 | 19.80 | 22.05 | 41.85 | 36.01 | 19.41 | 55.42 |
February | 15.24 | 1.19 | 16.43 | 17.61 | 1.85 | 19.46 | 25.06 | 2.65 | 27.71 |
March | 15.34 | 8.39 | 23.73 | 20.23 | 8.36 | 28.59 | 21.57 | 8.96 | 30.53 |
April | 12.68 | 8.12 | 20.80 | 17.58 | 9.40 | 26.98 | 21.96 | 10.52 | 32.48 |
May | 10.43 | 4.53 | 14.96 | 11.74 | 4.36 | 16.10 | 13.01 | 6.11 | 19.12 |
June | 11.25 | 10.26 | 21.51 | 13.59 | 8.79 | 22.38 | 13.11 | 8.30 | 21.41 |
July | 10.84 | 7.91 | 18.75 | 9.86 | 6.78 | 16.64 | 12.71 | 7.77 | 20.48 |
August | 9.55 | 10.23 | 19.78 | 10.53 | 10.14 | 20.67 | 10.62 | 8.20 | 18.82 |
September | 10.33 | 5.12 | 15.45 | 10.27 | 5.30 | 15.57 | 10.62 | 5.24 | 15.86 |
October | 13.81 | 10.26 | 24.07 | 16.81 | 12.45 | 29.26 | 21.31 | 13.47 | 34.78 |
November | 13.09 | 10.98 | 24.07 | 14.56 | 13.12 | 27.68 | 20.38 | 13.44 | 33.82 |
December | 11.46 | 24.75 | 36.21 | 13.15 | 25.07 | 38.22 | 19.98 | 19.98 | 39.96 |
Estimation of sulphur activity by the lead peroxide method
The cylinders for the estimation of sulphur activity are situated at
Alhambra House, Farm Street Depot and Bessborough Street Clinic.