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 1956
[Report of the Medical Officer of Health for Westminster, City of]
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| Month. | Monthly deposits of impurities—tons per square mile. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Mayfair. | Pimlico. | Charing Cross. | |||||||
| Insol. | Sol. | Total. | Insol. | Sol. | Total. | Insol. | Sol. | Total. | |
| January | 18.07 | 23.08 | 41.15 | 22.65 | 18.53 | 41.18 | 22.87 | 15.56 | 38.43 |
| February | 11.25 | 6.82 | 18.07 | 7.32 | 6.44 | 13.76 | 10.52 | 5.97 | 16.49 |
| March | 24.34 | 9.79 | 34.13 | 21.68 | 11.48 | 33.16 | 24.39 | 12.15 | 36.54 |
| April | 15.24 | 8.63 | 23.87 | 15.77 | 8.93 | 24.70 | 14.43 | 6.51 | 20.94 |
| May | 9.75 | 4.60 | 14.35 | 10.20 | 4.03 | 14.23 | 9.13 | 4.31 | 13.44 |
| June | 13.09 | 14.70 | 27.79 | 13.19 | 14.73 | 27.92 | 10.32 | 13.21 | 23.53 |
| July | 14.42 | 14.05 | 28.47 | 22.41 | 13.63 | 36.04 | 13.90 | 11.42 | 25.32 |
| August | 11.01 | 31.20 | 42.21 | 16.88 | 24.03 | 40.91 | 23.76 | 25.69 | 49.45 |
| September | 13.40 | 17.25 | 30.65 | 16.51 | 18.09 | 34.60 | 12.21 | 14.50 | 26.71 |
| October | 14.32 | 11.39 | 25.71 | 14.93 | 11.28 | 26.21 | 17.09 | 7.73 | 24.82 |
| November | 13.09 | 10.23 | 23.32 | 11.07 | 11.24 | 22.31 | 26.05 | 14.93 | 40.98 |
| December | 14.52 | 11.46 | 25.98 | 15.80 | 8.93 | 24.73 | 51 .77 | 21.18 | 72.95 |
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.
The following table gives the degree of sulphation expressed in empirical units, viz., milligrams of sulphur trioxide per day per 100 square centimetres of standard lead peroxide exposed in the standard apparatus.
| Month. | SO 3 in milligrams per 100 sq. cms. per day. | ||
|---|---|---|---|
| Mayfair. | Pimlico. | Charing Cross. | |
| January | 6.21 | 6.16 | 5.01 |
| February | 5.22 | 6.28 | 5.51 |
| March | 3.93 | 5.12 | 4.28 |
| April | 4.67 | 5.36 | 5.09 |
| May | 1.67 | 2.19 | 2.03 |
| June | 4.65 | 3.56 | 2.18 |
| July | 1.57 | 2.30 | 1.86 |
| August | 2.17 | 3.20 | 2.59 |
| September | 1.97 | 3.06 | 2.17 |
| October | 2.70 | 3.15 | 5.90 |
| November | 4.05 | 5.14 | 4.86 |
| December | 3.90 | 6.08 | 3.67 |