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
Hanover Square 1891
[Report of the Medical Officer of Health for Hanover Square, The Vestry of the Parish of Saint George]
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| Date of Collection | April 21. | May 23. | June 25. | July 24. | Aug. 21. | Sept. 30. | Oct. 31. | Nov. 29. | Dec. 31. | Jan. 30. | Feb. 27. | Mar. 20. | Average. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grand Jnnction Co.'s Water. | Total Solid Matters | 36 | 22 | 28 | 30 | 32 | 36 | 24 | 38 | 38 | 30 | 36 | 38 | 32.3 | |
| 16 | 8 | 14 | 12 | 12 | 22 | 10 | 18 | 16 | 12 | 16 | 16 | 14.3 | |||
| 20 | 14 | 14 | 18 | 20 | 14 | 14 | 20 | 22 | 18 | 20 | 22 | 18.0 | |||
| Chlorine | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | ||
| Equivalent to Common Salt | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | ||
| Nitrogen as Nitrates | 0.12 | 0.078 | 0.10 | 0.10 | 0.116 | 0.175 | 0.156 | 0.25 | 0.212 | 0.25 | 0.218 | 0.155 | 0.161 | ||
| Saline Ammonia | 3.0 | 2.2 | 1.5 | 1.6 | 1.4 | 2.2 | 0.8 | 2.2 | 4.8 | 14.6 | 0.8 | 1.4 | 3.0 | ||
| Organic Ammonia | 11.6 | 13.2 | 12.6 | 16.4 | 11.2 | 9.8 | 7.0 | 12.6 | 10.6 | 23.4 | 13.0 | 15.4 | 13.1 | ||
| Chelsea Company's Water. | Total Solid Matters | 34 | 28 | 29 | 28 | 28 | 28 | 22 | 34 | 36 | 30 | 38 | 34 | 30.7 | |
| 16 | 12 | 15 | 8 | 10 | 14 | 12 | 16 | 12 | 8 | 14 | 12 | 12.4 | |||
| 18 | 16 | 14 | 20 | 18 | 14 | 10 | 18 | 24 | 22 | 24 | 22 | 18.3 | |||
| Chlorine | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 .1 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 | ||
| Equivalent to Common Salt | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | 2.96 | ||
| Nitrogen as Nitrates | 0.12 | 0.078 | 0.10 | 0.07 | 0.087 | 0.175 | 0.156 | 0.25 | 0.156 | 0.233 | 0.28 | 0.233 | 0.161 | ||
| Saline Ammonia | 2.4 | 2.2 | 1.5 | 0.8 | 0.8 | 2.0 | 0.8 | 0.8 | 1.6 | 4.6 | 0.8 | 0.8 | 1.6 | ||
| Organic Ammonia | 10.8 | 12.8 | 11.6 | 9.2 | 9.6 | 10.8 | 7.4 | 10.8 | 10.6 | 9.8 | 12.2 | 11.8 | 10.6 | ||