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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Table 7—(
| Date, 1898. | Sewage chemically treated and sedimented as supplied to the coke.bed. | Coke.bed effluent. | Quantity treated. Gallons. | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Oxygen absorbed from permanganate in four hours. | Nitrogen as | Oxygen absorbed from permanganate in four hours. | Nitrogen as | ||||||
| By the total oxidisable matter. | By the dissolved oxidisable matter. | Nitrite. | Nitrate. | By the total oxidisable matter. | By the dissolved oxidisable matter. | Nitrite. | Nitrate. | ||
| 1899. | |||||||||
| Sept. 19 | 2.021 | Nil. | 0.2410 | 0.494 | 0.0140 | 0.3470 | 422,564 | ||
| ” 20 | 3.191 | ” | 0.2916 | 0.634 | 0.0210 | 0.7043 | 455,285 | ||
| 460,100 | |||||||||
| ” 21 | 3.404 | ” | 0.2384 | 0.553 | 0.0280 | 0.7890 | 454,750 | ||
| 454,750 | |||||||||
| ” 22 | 3.085 | ” | 0.1315 | 0.559 | 0.0210 | 0.6045 | 454,750 | ||
| 454,750 | |||||||||
| ” 23 | 3.085 | ” | 0.3029 | 0.602 | 0.0182 | 1.0698 | 454,750 | ||
| 470,800 | |||||||||
| ” 25 | 3.298 | ” | 0.3586 | 0.505 | 0.0140 | 0.5726 | 481,500 | ||
| 454,750 | |||||||||
| ” 26 | 3.723 | ” | 0.2391 | 0.559 | 0.0182 | 0.4045 | 454,750 | ||
| 460,100 | |||||||||
| ” 27 | 4.042 | ” | 0.1930 | 0.602 | 0.0140 | 0.5900 | 454,750 | ||
| 454,750 | |||||||||
| ” 28 | 3.229 | ” | 0.1986 | 0.495 | 0.0140 | 0.4030 | 454,750 | ||
| 460,100 | |||||||||
| ” 29 | 2.708 | ” | 0.3460 | 0.580 | 0.0280 | 0.5715 | 481,500 | ||
| 460,976 | |||||||||
| ” 30 | 2.187 | ” | 0.3758 | 0.428 | 0.0210 | 0.5845 | 454,750 | ||
| 454,750 | |||||||||
| Oct. 2 | 3.645 | ” | 0.3645 | 0.523 | 0.0182 | 0.6042 | 455,285 | ||
| 455,285 | |||||||||
| ” 3 | 2.000 | ” | 0.2385 | 0.452 | 0.0140 | 0.3491 | 454,750 | ||
| 460,100 | |||||||||
| ” 4 | 2.812 | ” | 0.6206 | 0.428 | 0.0182 | 1.4370 | 454,750 | ||
| ” 5 | 2.105 | ” | 0.4320 | 0.750 | 0.0140 | 0.6018 | 454.750 | ||
| 454,750 | |||||||||
| ” 6 | 2.812 | ” | 0.4922 | 0.490 | 0.0140 | 0.8105 | 449,400 | ||
| 454,750 | |||||||||
| ” 7 | 2.947 | ” | 0.4800 | 0.600 | 0.0182 | 0.8236 | 454,750 | ||
| 454,750 | |||||||||
| ” 9 | 2.812 | ” | 0.1325 | 0.620 | 0.0140 | 0.4785 | 470,800 | ||
| 406,974 | |||||||||
| ” 10 | 2.947 | ” | 0.2912 | 0.700 | 0.0218 | 0.5882 | 454,750 | ||
| 454,750 | |||||||||
| ” 11 | 3.651 | ” | 0.3578 | 0.600 | 0.0218 | 0.5732 | 454,750 | ||
| 455,285 | |||||||||
| ” 12 | 3.654 | ” | 0.3936 | 0.660 | 0.0210 | 0.7047 | 449,400 | ||
| 454,750 | |||||||||
| ” 13 | 4.038 | ” | 0.3624 | 0.690 | 0.0210 | 0.5830 | 454,750 | ||
| 454,750 | |||||||||
| ” 14 | 3.654 | ” | 0.2224 | 0.660 | 0.0280 | 0.4586 | 422,564 | ||
| 454,750 | |||||||||
| ” 16 | 3.461 | ” | 0.1780 | 0.480 | 0.0210 | 0.4505 | 431,955 | ||
| 454,750 | |||||||||
| ” 17 | 3.557 | ” | 0.2417 | 0.605 | 0.0210 | 0.3975 | 454,750 | ||
| 454,750 | |||||||||
| ” 18 | 3.365 | 2.211 | ” | 0.3035 | 0.543 | 0.456 | 0.0140 | 0.4767 | 460,100 |
| ” 19 | 4.059 | 2.673 | ” | 0.3728 | 0.620 | 0.500 | 0.0140 | 0.4765 | 454,750 |
| 454,750 | |||||||||
| ” 20 | 3.663 | 2.475 | ” | 0.3993 | 0.590 | 0.480 | 0.0182 | 0.5980 | 454,750 |
| 454,750 | |||||||||
| ” 21 | 3.861 | 2.574 | ” | 0.2486 | 0.610 | 0.450 | 0.0182 | 0.4047 | 454,750 |
| 441,987 | |||||||||
| ” 23 | 4.507 | 3.431 | ” | 0.1844 | 0.666 | 0.558 | 0.0140 | 0.3526 | 486,850 |
| 465,450 | |||||||||
| ” 24 | 5.098 | 3.833 | ” | 0.2359 | 0.764 | 0.607 | 00140 | 0.4683 | 460,100 |
| 465,450 | |||||||||
| ” 25 | 5.000 | 3.725 | ” | 0.1802 | 0.794 | 0.607 | 00210 | 0.3416 | 460,100 |
| 454,750 | |||||||||
| ” 26 | 4.803 | 3.431 | ” | 0.0977 | 0.754 | 0.598 | 0.0182 | 0.2171 | 460,100 |
| 454,750 | |||||||||
| ” 27 | 4.215 | 3.431 | ” | 0.0871 | 0.784 | 0.637 | 0.0182 | 0.2843 | 454,750 |
| 454,750 | |||||||||
| ” 28 | 3.333 | 2.058 | ” | 0.0300 | 0.663 | 0.500 | 00182 | 0.0607 | 438,212 |
| 454,750 | |||||||||
| ” 30 | 3.725 | 2.549 | ” | 0.0505 | 0.672 | 0.427 | 0.0140 | 0.0787 | 443,9( 3 |
| 454,750 | |||||||||