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
City of Westminster 1949
[Report of the Medical Officer of Health for Westminster, City of]
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| 1949 | Mayfair. | Pimlico. | ||
|---|---|---|---|---|
| Total Solids. | Sulphates. | Total Solids. | Sulphates. | |
| January | 16.00 | 1.71 | 27.40 | 2.32 |
| February | 23.46 | 2.10 | 23.62 | 2.62 |
| March | 14.35 | 1.79 | 18.64 | 1.95 |
| April | 25.25 | 2.78 | 32.35 | 3.16 |
| May | 21.42 | 2.30 | 23.38 | 2.71 |
| June | 8.88 | 0.28 | 9.66 | 0.44 |
| July | 16.97 | 1.95 | 23.70 | 2.27 |
| August | 9.19 | 1.54 | 22.03 | 1.78 |
| September | 10.54 | 1.29 | 16.49 | 1.60 |
| October | 34.25 | 3.19 | 38.57 | 6.86 |
| November | 22.55 | 1.61 | 32.71 | 2.94 |
| December | 15.68 | 1.79 | 19.22 | 1.92 |
Estimation of Sulphur Activity by the Lead Peroxide Method.
These lead peroxide cylinders for the estimation of sulphur activity
are in use at —
1. Farm Street Depot, Mayfair.
2. Alhambra House, Charing Cross Road.
3. Bessborough Street Clinic, Pimlico.
The following table indicates the daily absorption of sulphur due to
active sulphurous gases in the air.
| 1949 | Mayfair. | Charing Cross. | Pimlico. |
|---|---|---|---|
| January | 4.72 | 4.96 | 5.22 |
| February | 4.34 | 5.09 | 5.14 |
| March | 3.63 | 4.68 | 4.28 |
| April | 2.61 | 3.06 | 3.25 |
| May | 2.09 | 2.52 | 2.52 |
| June | 1.64 | 1.62 | 2.07 |
| July | 1.71 | 2.01 | 1.96 |
| August | 1.44 | 2.18 | 1.80 |
| September | 1.73 | 2.46 | 2.45 |
| October | 2.91 | 3.31 | 3.83 |
| November | 3.05 | 2.23 | 4.35 |
| December | 2.97 | 3.45 | 3.68 |
Owens Automatic Filter.
An hourly record made of suspected impurities in the air was continued
by the Owens method at Alhambra House, Charing Cross Road, AV.C.2.
Estimation of Sulphur Dioxide by the Hydrogen Peroxide Method.
A weekly estimation of the sulphur as S02 in the atmosphere was
carried out by the Hydrogen Peroxide Method at Alhambra House,