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
London County Council 1899
[Report of the Medical Officer of Health for London County Council]
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17
IV—TABULATION OF THE RESULTS OF THE CHEMICAL EXAMINATION
OF THE BACTERIALLY-TREATED CRUDE SEWAGE AND EFFLUENTS.
I.—BARKING RESULTS.
Table 1.—Chemical Results of the Estimation of the Amount of Oxygen Absorbed from Permanganate by the Sewage and by the Effluents from the Beds of Ragstone and Coke.
| Date. | Number of times filled daily. | Number of grains of oxygen absorbed from permanganate in 4 hours * by one gallon of— | ||||
|---|---|---|---|---|---|---|
| Crude sewage. | Effluent from the Ragstone series. | Effluent from the Coke series. | ||||
| Primary coarse bed. | Secondary fine bed. | Primary coarse bed. | Secondary fine bed. | |||
| 1898. | ||||||
| SeDt. 22 | Once | 4.412 | 4.759 | 5.000 | 4.59 | 1.471 |
| 23 | ” | lost | 4.510 | 4.412 | 4.608 | 0.784 |
| 26 | ” | 2.059 | 3.039 | 2.353 | 2.358 | 0.882 |
| 27 | ” | 2.330 | 2.718 | 2.524 | 2.718 | 0.777 |
| 28 | ” | 1.942 | 2.039 | 1.748 | 1.845 | 0.582 |
| 29 | ” | 2.600 | 2.500 | 1.900 | 2.700 | 0.600 |
| 30 | ” | 3.300 | 3.200 | 2.500 | 3.200 | 0.900 |
| Oct. 3 | ” | 1.900 | 2.500 | 1.900 | 1.800 | 0.600 |
| 4 | ” | 2.200 | 2.300 | 1.800 | 1.900 | 0.600 |
| 5 | ” | 2.300 | 2.800 | 1.900 | 2.100 | 0.500 |
| 6 | ” | 1.800 | 1.800 | 1.400 | 1.400 | 0.600 |
| 7 | ” | 1.800 | 1.800 | 1.400 | 1.400 | 0.700 |
| 8 | ” | 2.200 | 2.300 | 2.000 | 1.700 | 0.700 |
| 10 | ” | 1.500 | 1.500 | 1.800 | 1.700 | 0.900 |
| 11 | ” | 3.000 | 2.800 | 1.900 | 2.600 | 1.100 |
| 12 | ” | 2.000 | 1.900 | 1.600 | 1.800 | 0.800 |
| 13 | ” | 1.700 | 1.600 | 1.300 | 1.500 | 0.700 |
| 14 | ” | 1.800 | 1.700 | 1.200 | 1.700 | 0.700 |
| 15 | ” | 2.700 | 2.600 | 2.000 | 2.500 | 1.100 |
| 17 | ” | 1.400 | 1.500 | 1.300 | 1.400 | 0.800 |
| 18 | ” | 2.200 | 1.800 | 1.600 | 1.800 | 0.900 |
| 19 | ” | 1.881 | 1.980 | 1.881 | 1.881 | 1.089 |
| 21 | ” | 3.267 | 3.168 | 1.782 | 3.168 | 1.188 |
| 22 | ” | 2.178 | 1.683 | 1.386 | 1.980 | 0.792 |
| 24 | ” | 2.673 | 2.376 | 1.584 | 2.178 | 0.891 |
| 25 | ” | 2.475 | 1.881 | 1.584 | 2.079 | 1.089 |
| 26 | ” | 3.069 | 2.376 | 1.485 | 2.178 | 0.792 |
| 27 | ” | 3.564 | 2.970 | 1.881 | 2.772 | 1.188 |
| 28 | ” | 4.059 | 3.356 | 2.277 | 3.069 | 1.584 |
| 29 | ” | 2.475 | 2.277 | 1.584 | 2.178 | 0.990 |
| Nov. 2 | ” | 4.158 | 3.168 | 2.277 | 3.366 | 1.386 |
| 3 | ” | 4.059 | 3.366 | 1.782 | 3.069 | 1.287 |
| 4 | ” | 3.564 | 2.772 | 1.485 | 2.574 | 1.584 |
| 5 | ” | 4.275 | 3.366 | 2.277 | 3.267 | 1.287 |
| 7 | ” | 3.366 | 2.970 | 1.782 | 3.267 | 1.386 |
| 8 | ” | 3.960 | 3.168 | 1.881 | 3.168 | 1.287 |
| 9 | ” | 3.663 | 3.267 | 1.980 | 3069 | 1.881 |
| 10 | ” | 3.564 | 2.970 | 1.980 | 2.871 | 1.584 |
| 11 | ” | 3.663 | 3.162 | 1.782 | 3.069 | 1.386 |
| 12 | ” | 4.356 | 3.465 | 2.376 | 3.366 | 2.079 |
| 14 | ” | 3.069 | 2.871 | 1.881 | 2.673 | 1.287 |
| 15 | ” | 4.554 | 3.069 | 1.980 | 2.673 | 1.485 |
| 16 | ” | 4.158 | 2.970 | 1.386 | 2.673 | 1.683 |
| 17 | ” | 4.158 | 3.168 | 1.782 | 3.267 | 1.368 |
| 18 | ” | 4.554 | 3.069 | 1.881 | 3.069 | 1.980 |
| 19 | ” | 4.653 | 3.564 | 1.980 | 3.366 | 2.079 |
| 21 | ” | 4.000 | 3.500 | 2.000 | 3.300 | 1.400 |
| 22 | ” | 4.000 | 3.400 | 1.800 | 3.600 | 1.400 |
| 23 | ” | 4.800 | 3.600 | 2.000 | 3.500 | 1.600 |
| 24 | ” | 4.700 | 3.900 | 2.300 | 3.900 | 1.700 |
| 25 | ” | 4.800 | 3.500 | 2.100 | 4.000 | 1.500 |
| 26 | ” | 4.400 | 3.000 | 1.500 | 3.200 | 1.100 |
| 28 | ” | 4.100 | 3.000 | 1.900 | 3.000 | 1.500 |
| 29 | ” | 4.300 | 3.400 | 1.800 | 3.900 | 1.400 |
| 30 | ” | 6.000 | 3.500 | 2.500 | 3.600 | 1.900 |
| Dec. 1 | ” | 4.300 | 3.400 | 2.800 | 3.500 | 2.100 |
| 2 | ” | 5.500 | 3.800 | 2.300 | 4.100 | 1.900 |
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