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
| 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. | |||||||||
| June 28 | 3.558 | Nil. | 0.1075 | 0.630 | 0.0280 | 0.5101 | 481,500 502,900 | ||
| ” 29 | 3.269 | Trace | 0.0381 | 0.640 | 0.0322 | 0.4447 | 508,250 | ||
| 551,050 | |||||||||
| ” 30 | 2.788 | Nil | 0.1606 | 0.590 | 0.0280 | 0.3376 | 497,550 | ||
| 502,900 | |||||||||
| July 1 | 2.019 | ” | 0.1337 | 0.530 | 0.0378 | 0.5684 | 481,500 | ||
| 508,250 | |||||||||
| ” 3 | 3.365 | ” | 0.0994 | 0.520 | 0.0238 | 0.6343 | 535,000 | ||
| 518,950 | |||||||||
| ” 4 | 3.846 | ” | 0.0537 | 0.529 | 0.0280 | 0.5170 | 508,250 | ||
| 508,250 | |||||||||
| ” 5 | 3.558 | ” | 0.0862 | 0.559 | 0.0280 | 0.3901 | 486,850 | ||
| 508,250 | |||||||||
| ” 6 | 1.635 | ” | 0.1137 | 0.451 | Trace | 0.2843 | 486,850 | ||
| ” 7 | 2.308 | ” | 0.0562 | 0.539 | 0.0378 | 0.1865 | 527,371 | ||
| 507,077 | |||||||||
| ” 8 | 1.827 | ” | 0.1034 | 0.471 | 0.0308 | 0.1804 | 497,550 | ||
| 486,850 | |||||||||
| ” 10 | 2.212 | ” | 0.0650 | 0.500 | 0.0280 | 0.5657 | 527,371 | ||
| 447,672 | |||||||||
| ” 11 | 2.971 | ” | 0.0331 | 0.622 | 0.0238 | 0.1331 | 497,550 | ||
| 486,850 | |||||||||
| ” 12 | 3.269 | ” | 0.1037 | 0.674 | 0.0350 | 0.2437 | 527,371 | ||
| 481,500 | |||||||||
| ” 13 | 2.971 | ” | 0.1012 | 0.643 | 0.0350 | 0.2100 | 507,281 | ||
| 481,500 | |||||||||
| ” 14 | 2.788 | ” | 0.1387 | 0.582 | Nil | 0.2331 | 497,550 | ||
| 451,742 | |||||||||
| ” 15 | 2.596 | ” | 0.0337 | 0.674 | 0.0448 | 0.2064 | 496,409 | ||
| 508,250 | |||||||||
| ” 17 | 3.048 | ” | 0.2200 | 0.581 | 0.0252 | 0.5668 | 492,992 | ||
| 481,500 | |||||||||
| ” 18 | 2.962 | ” | 0.0787 | 0.612 | 0.0280 | 0.5890 | 492,992 | ||
| 492,200 | |||||||||
| ” 19 | 2.962 | ” | Trace | 0.581 | 0.0350 | 1.8051 | 488.297 | ||
| 513,600 | |||||||||
| ” 20 | 2.761 | ” | ” | 0.561 | 0.0280 | 0.0980 | 497,550 497,550 | ||
| ” 21 | 2.381 | ” | 0.551 | 0.0210 | 0.0984 | 486,850 | |||
| 502,900 | |||||||||
| ” 22 | 1.619 | ” | 0.0772 | 0.490 | 0.0238 | 0.1116 | 492,200 | ||
| ” 24 | 2.380 | ” | 0.1758 | 0.514 | 0.0210 | 0.4592 | 535,000 | ||
| 518,950 | |||||||||
| ” 25 | 3.238 | ” | 0.2491 | 0.476 | 0.0210 | 0.2823 | 508,250 | ||
| 486,850 | |||||||||
| ” 26 | 3.052 | ” | 0.1807 | 0.609 | 0.0210 | 0.1620 | 481,500 | ||
| 481,500 | |||||||||
| ” 27 | 3.052 | ” | 0.1882 | 0.580 | 0.0252 | 0.4280 | 502,900 | ||
| 447,010 | |||||||||
| ” 28 | 2.631 | ” | 0.1206 | 0.628 | 0.0252 | 0.3384 | 455,811 | ||
| 446,040 | |||||||||
| ” 29 | Lost | ” | 0.2930 | 0.636 | 0.0210 | 0.3370 | 502,258 | ||
| 422,564 | |||||||||
| ” 31 | 3.093 | ” | 0.1791 | 0.555 | 0.0210 | 0.2208 | 492,213 | ||
| 446,040 | |||||||||
| Aug. 1 | 3.505 | ” | 0.1796 | 0.572 | 0.0182 | 0.3408 | 399,605 | ||
| 377,229 | |||||||||
| ” 2 | 2.268 | ” | 0.2346 | 0.570 | 0.0210 | 0.3321 | 416,979 508,250 | ||
| ” 3 | 3.402 | 0.2392 | 0.580 | 0.0210 | 0.3951 | 481,500 470,800 | |||
| ” 4 | 3.505 | ” | 01297 | 0.580 | 0.0128 | 0.2883 | 481,500 454,750 | ||
| ” 5 | 481,500 | ||||||||
| ” 8 | 1.702 | ” | 0.1785 | 0.534 | 0.0210 | 0.2456 | 444,050 | ||
| 470,800 | |||||||||