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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T able 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 | |||||||||
| Jan. 21 | 5.000 | 2.600 | Nil | Trace | 1.100 | 0.606 | 0.0420 | 0.5017 | 540,350 |
| ” 23 | 551,050 | ||||||||
| 1.980 | 0.1610 | Nil | 0.413 | 0.0322 | 0.8640 | 561,750 | |||
| ” 24 | 3.366 | 0.1330 | ” | 0.452 | 0.0280 | 0.5970 | 561,750 | ||
| ” 25 | 3.267 | 0.0280 | ” | 0.442 | Trace | 0.5781 | 561,750 | ||
| ” 26 | 3.900 | 0.0140 | 0.0654 | 0.557 | 0.0140 | 0.2922 | 529,650 | ||
| ” 27 | 561,750 | ||||||||
| 3.600 | 0.0210 | 0.0309 | 0.546 | 0.0140 | 0.1947 | 535,000 | |||
| ” 28 | 561,750 | ||||||||
| 3.100 | Nil | 0.1456 | 0.515 | 0.0140 | 0.7879 | 545,700' | |||
| ” 30 | 529,067 | ||||||||
| 4.300 | Trace | 0.660 | 0.0238 | 0.1524 | 551,050 | ||||
| ” 31 | 545,700 | ||||||||
| 5.100 | 0.0420 | 0.0767 | 0.700 | 0.0210 | 0.1146 | 540,350 | |||
| Feb. 1 | 535,000 | ||||||||
| 5.400 | 0.0140 | 0.0422 | 0.800 | 0.0140 | 0.0854 | 535,000 | |||
| 508,250 | |||||||||
| ” 2 | 5.500 | Nil | 0.0437 | 0.840 | 0.0210 | 0.1027 | 563,419 | ||
| ” 3 | 546,342 | ||||||||
| 5.000 | ” | Trace | 0.800 | 0.0210 | 0.0890 | 557,554 | |||
| 518,950 | |||||||||
| ” 4 | 4.500 | ” | ” | 0.740 | 0.0280 | 0.1532 | 535,000 | ||
| 526,300 | |||||||||
| ” 6 | 4.300 | 0.1050 | Nil | 0.680 | 0.0140 | 0.2379 | 551,050 | ||
| 489,431 | |||||||||
| ” 7 | 3.800 | 0.1260 | 0.1052 | 0.630 | 0.0350 | 0.1937 | 529,650 | ||
| 535,000 | |||||||||
| ” 8 | 3.300 | 0.0910 | Nil | 0.693 | 0.0210 | 0.0877 | 502,900 | ||
| ” 9 | 512,195 | ||||||||
| 1.400 | 0.1750 | 1.0356 | 0.500 | 0.0560 | 0.5996 | 518,950 | |||
| ” 10 | 2.700 | 0.1400 | 0.0931 | 0.592 | 0.0308 | 0.2361 | 540,650 | ||
| ” 11 | 544,639 | ||||||||
| 2.900 | Nil | 0.0512 | 0.604 | 0.0280 | 0.0510 | 518,950 | |||
| 527,371 | |||||||||
| ” 13 | 3.100 | 0.0700 | Nil | 0.653 | 0.0210 | 0.3371 | 507,280 | ||
| 481,500 | |||||||||
| ” 14 | 3.800 | Nil | 0.0162 | 0.704 | 0.0210 | 0.3377 | 497,235 | ||
| 497,235 | |||||||||
| ” 15 | 4.200 | 0.0140 | 0.0285 | 0.690 | 0.0210 | 0.3102 | 511,772 | ||
| 486,850 | |||||||||
| ” 16 | 3.900 | 0.1400 | 0.1062 | 0.720 | 0.0280 | 0.2682 | 492,200 | ||
| 497,550 | |||||||||
| ” 17 | 4.500 | 0.0280 | 0.0914 | 0.710 | 0.0280 | 0.2351 | 518,950 | ||
| 508,250 | |||||||||
| ” 18 | 4.200 | Nil | 0.0531 | 0.780 | 0.0280 | 0.0930 | 508,250 | ||
| 502,382 | |||||||||
| ” 20 | 4.500 | 0.0210 | 0.0652 | 0.680 | 0.0210 | 0.2490 | 524,300 | ||
| 508,250 | |||||||||
| ” 21 | 5.000 | Nil | Trace | 0.710 | 0.0140 | 0.1929 | 540,350 | ||
| 502,800 | |||||||||
| ” 22 | 4.600 | 0.0140 | 0.0516 | 0.770 | 0.0210 | 0.0284 | 535,000 | ||
| 508,250 | |||||||||
| ” 23 | 2.400 | Trace | 0.0900 | 0.620 | 0.0210 | Nil | 492,200 | ||
| ” 24 | 4.100 | 0.0350 | 0.0331 | 0.660 | 0.0280 | ” | 492,200 | ||
| 497,550 | |||||||||
| ” 25 | 3.800 | Nil | 0.1144 | 0.630 | 00420 | 00080 | 513,600 | ||
| 518,950 | |||||||||
| ” 27 | 3.600 | 0.0420 | 0.0692 | 0.610 | 00280 | 00900 | 517,326 | ||
| 508,250 | |||||||||
| ” 28 | 4.000 | 0.0140 | 0.0140 | 0.622 | 00280 | 0.2038 | 502,900 | ||
| 518,950 | |||||||||
| March 6 | 4.500 | 0.0140 | 0.0604 | 0.690 | 00350 | 0.7168 | 535,000 | ||
| 508,250 | |||||||||
| ” 7 | 5.500 | 0.0070 | 0.0392 | 0.810 | 0.0280 | 0.2651 | 492,439 | ||
| 513,600 | |||||||||
| ” 8 | 5.300 | Nil | 0.1944 | 0.800 | 00140 | 00866 | 486,850 | ||
| 508,250 | |||||||||