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
Chislehurst 1960
[Report of the Medical Officer of Health for Chislehurst]
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Monthly deposit in tons per square mile during 1960.
| Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (in rain in inches) | 1.40 | 1.38 | 1.59 | 0.37 | 1.84 | 1.08 | 3.31 | 3.05 | 4.15 | 5.31 | 3.23 | 2.52 |
| pH Value | 5.90 | 6.58 | 5.98 | 7.04 | 7.14 | 7.21 | 6.70 | 6.84 | 6.62 | 6.75 | 4.83 | 4.64 |
| Total water in soluble matter | 5.02 | 5.34 | 9.58 | 5.99 | 8.36 | 6.92 | 5.07 | 4.07 | 5.99 | 4.43 | 2.70 | 6.66 |
| Soluble in CS, | 0.08 | 0.08 | 0.08 | 0.05 | 0.13 | 0.12 | 0.12 | 0.12 | 0.07 | 0.11 | 0.09 | 0.17 |
| Ash | 3.69 | 3.74 | 7.00 | 4.28 | 6.30 | 5.01 | 3.09 | 2.54 | 4.24 | 2.96 | 1.52 | 4.46 |
| Other combustible matter | 1.26 | 1.52 | 2.50 | 1.65 | 1.93 | 1.78 | 1.86 | 1.41 | 1.68 | 1.35 | 1.09 | 2.03 |
| Total water soluble matter | 5.37 | 5.13 | 13.66 | 4.46 | 9.83 | 7.55 | 5.03 | 4.43 | 11.54 | 9.40 | 5.50 | 5.57 |
| Ca + + | 0.81 | 0.74 | 2.55 | 0.84 | 1.91 | 1.85 | 0.64 | 0.73 | 1.80 | 1.55 | 0.42 | 0.73 |
| CI' | 1.14 | 0.97 | 1.28 | 0.50 | 0.67 | 0.60 | 0.74 | 0.54 | 0.94 | 1.34 | 1.28 | 1.14 |
| SO." | 2.45 | 1.88 | 5.83 | 1.51 | 3.50 | 2.69 | 2.21 | 2.24 | 4.42 | 4.53 | 1.85 | 2.43 |
| Total solids | 10.39 | 10.47 | 23.24 | 10.45 | 18.19 | 14.47 | 10.11 | 8.50 | 17.54 | 13.83 | 8.20 | 12.23 |
| Sulphur dioxide (milligrams of S.O., per day collected by 100 sq. cms. PB.O,) | 3.30 | 2.41 | 3.37 | 1.62 | 1.94 | 1.63 | 0.54 | 0.59 | 1.38 | 2.04 | 1.44 | 2.64 |