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. | |||||||||
| Aug. 9 | 2.062 | Nil. | 0.1477 | 0.485 | 0.0140 | 0.2827 | 465,450 | ||
| 465,450 | |||||||||
| ” 10 | 2.371 | ” | 0.2415 | 0.485 | 0.0210 | 0.9540 | 470,800 | ||
| 454,750 | |||||||||
| ” 11 | 2.500 | ” | 0.3016 | 0.566 | 0.0182 | 0.4639 | 465,450 | ||
| 454,750 | |||||||||
| ” 12 | 2.500 | ” | 0.2378 | 0.639 | 0.0252 | 0.3377 | 470,800 | ||
| 455,285 | |||||||||
| ” 14 | 2.700 | ” | 0.2366 | 0.601 | 0.0210 | 0.2310 | 422,564 | ||
| 454,750 | |||||||||
| ” 15 | 2.900 | ” | 0.3696 | 0.592 | 0.0210 | 0.5131 | 422,564 | ||
| 454,750 | |||||||||
| ” 16 | 2.900 | ” | 0.0705 | 0.563 | 0.0210 | 0.4603 | 422,564 | ||
| 492,200 | |||||||||
| ” 17 | 2.500 | ” | 0.1186 | 0.533 | 0.0182 | 0.2235 | 422,564 | ||
| 454,750 | |||||||||
| ” 18 | 2.400 | ” | 0.1201 | 0.524 | 0.0182 | 0.2836 | 417,869 | ||
| 460,100 | |||||||||
| ” 19 | 1.700 | ” | 0.3603 | 0.512 | 0.0238 | 0.5799 | 427,259 | ||
| ” 21 | 2.083 | ” | 0.1790 | 0.500 | 0.0210 | 0.3167 | 508.250 422,564 | ||
| ” 22 | 2.500 | ” | 0.2986 | 0.521 | 0.0210 | 0.5723 | 470,800 | ||
| 454,750 | |||||||||
| ” 23 | 2.916 | ” | 0.1068 | 0.521 | 0.0210 | 0.3418 | 454,750 | ||
| 460,100 | |||||||||
| ” 24 | 2.395 | ” | 0.3582 | 0.574 | 0.0140 | 0.5841 | 481,500 | ||
| 460,100 | |||||||||
| ” 25 | 2.812 | ” | 0.3058 | 0.680 | 0.0128 | 0.5847 | 406,975 | ||
| 460,100 | |||||||||
| ” 26 | 2.500 | ” | 0.4112 | 0.667 | 0.0252 | 0.7454 | 406,975 | ||
| 427,260 | |||||||||
| ” 28 | 3.226 | ” | 0.2351 | 0.594 | 0.0140 | 0.3503 | 481,500 | ||
| 454,750 | |||||||||
| ” 29 | 3.215 | ” | 0.3611 | 0.625 | 0.0210 | 0.5769 | 454,750 | ||
| 454,750 | |||||||||
| ” 30 | 2.796 | ” | 0.0850 | 0.583 | 0.0140 | 0.2876 | 454,750 | ||
| 454,750 | |||||||||
| ” 31 | 2.688 | ” | 0.2398 | 0.427 | 0.0210 | 0.4607 | 481,500 454,750 | ||
| Sept. 1 | 4.285 | ” | 0.0620 | 0.670 | 0.0140 | 0.2258 | 422,564 454,750 | ||
| ” 2 | 2.526 | ” | 0.2406 | 0.680 | 0 0210 | 0.4615 | 454,750 | ||
| ” 4 | 2.211 | ” | 0.4737 | 0.503 | 0.0140 | 0.6966 | 481,500 | ||
| ” | 454,750 | ||||||||
| ” 5 | 2.812 | ” | 0.3551 | 0.505 | 0.0140 | 0.5791 | 470,800 | ||
| 422,564 | |||||||||
| ” 6 | 1.915 | ” | 0.2996 | 0.670 | 0.0112 | 0.4643 | 422,564 | ||
| 454,750 | |||||||||
| ” 7 | 2.340 | ” | 0.4765 | 0.558 | 0.0182 | 0.5824 | 465,450 | ||
| 454,750 | |||||||||
| ” 8 | 2.447 | ” | 0.3558 | 0.579 | 0.0182 | 0.5718 | 460,100 | ||
| 454,750 | |||||||||
| ” 9 | 3.469 | ” | 0.2928 | 0.706 | 0.0210 | 0.5900 | 460,100 | ||
| 422,564 | |||||||||
| ” 11 | 2.842 | ” | 0.1081 | 0.645 | 0.0182 | 0.2243 | 481,500 | ||
| 454,750 | |||||||||
| ” 12 | 2.316 | ” | 0.2008 | 0.624 | 0.0182 | 0.4099 | 431,955 | ||
| 460,100 | |||||||||
| ” 13 | 3.263 | ” | 0.0401 | 0.763 | 0.0210 | 0.0972 | 422,564 | ||
| 431,955 | |||||||||
| ” 14 | 2.128 | ” | 0.2436 | 0.581 | 0.0182 | 0.3453 | 427,260 | ||
| 465,450 | |||||||||
| ” 15 | 2.978 | ” | 0.2378 | 0.354 | 0.0182 | 0.3411 | 408,479 | ||
| 454,750 | |||||||||
| ” 16 | 2.446 | ” | 0.2980 | 0.623 | 0.0210 | 0.6960 | 417,869 | ||
| 419,184 | |||||||||
| ” 18 | 2.872 | ” | 0.0720 | 0.494 | 0.0140 | 0.4628 | 431,955 | ||
| 465,450 | |||||||||