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. | |||||||||
| March 9 | 5.600 | 0.0280 | 0.0370 | 0.870 | 0.0140 | 0.1572 | 486,850 | ||
| 481,500 | |||||||||
| ” 10 | 4.400 | 0.0280 | 0.0857 | 0.720 | 0.0140 | Nil | 487,190 | ||
| 492,200 | |||||||||
| ” 11 | 3.100 | Nil | 0.1337 | 0.660 | 0.0140 | 0.1510 | 483,601 | ||
| May 8 | 2.885 | Nil | 0.1075 | 0.798 | 0.3500 | 10.5910 | 657,322 | ||
| ” 9 | 4.808 | 0.0070 | 0.1630 | 0.879 | 0.4200 | 7.9369 | 633,847 | ||
| ” 10 | 5.000 | Nil | 0.0450 | 0.919 | 0.2800 | 4.2037 | 642,000 | ||
| ” 15 | 2.115 | ” | 0.1712 | 0.608 | 0.0462 | 4.3138 | 615,250 | ||
| ” 16 | 3.654 | ” | Nil | 0.500 | 0.0700 | 2.4769 | 615,250 | ||
| ” 17 | 2.885 | ” | 0.1662 | 0.476 | 0.0350 | 2.2525 | 563,419 | ||
| ” 18 | 3.010 | ” | 0.1162 | 0.408 | 0.0308 | 1.4192 | 549.415 | ||
| ” 19 | 4.423 | Trace | Trace | 0.592 | 0.0420 | 1.4811 | 563,419 | ||
| ” 20 | 563,419 | ||||||||
| ” 23 | 584,102 | ||||||||
| ” 24 | 2.981 | Nil | 0.1100 | 0.524 | 0.0280 | 0.9570 | 563,419 | ||
| ” 25 | 2.404 | ” | 0.1731 | 0.486 | 0.0238 | 0.7087 | 539,943 | ||
| ” 26 | 2.981 | ” | 0.1206 | 0.467 | 0.0280 | 0.5276 | 521,224 | ||
| ” 27 | 2.788 | ” | 0 0525 | 0.505 | 00350 | 0.4500 | 539,943 | ||
| ” 29 | 3.654 | ” | 0.1168 | 0.476 | 0.0280 | 0.9957 | 563,419 | ||
| ” 30 | 4.327 | ” | 0.1194 | 0.514 | 0.0462 | 1.1925 | 563,419 | ||
| 577,800 | |||||||||
| ” 31 | 3.750 | ” | Nil | 0.604 | 0.0322 | 0.6359 | 539,943 | ||
| 544,639 | |||||||||
| June 1 | 3.558 | ” | 0.0662 | 0.584 | 0.0280 | 0.3826 | 567,100 | ||
| 539,943 | |||||||||
| ” 2 | 3.077 | ” | 0.1125 | 0.554 | 0.0280 | 0.6338 | 567,100 | ||
| 549,334 | |||||||||
| ” 3 | 2.788 | ” | 0.0187 | 0.535 | 0.0560 | 0.6752 | 572,450 | ||
| 516,468 | |||||||||
| ” 5 | 3.654 | 00140 | 0.0747 | 0.554 | 0.0210 | 1.0665 | 554,029 | ||
| 567,100 | |||||||||
| ” 6 | 3.173 | Nil | 0.0487 | 0.510 | 0.0210 | 0.6646 | 567,100 | ||
| 551,750 | |||||||||
| ” 7 | 1.827 | ” | 0.0737 | 0.451 | 0.0182 | 0.4049 | 540,350 | ||
| ” 8 | 2.855 | ” | 0.1043 | 0.510 | 0.0210 | 01459 | 577,800 | ||
| 545,700 | |||||||||
| ” 9 | 3.077 | ” | 0.0675 | 0.471 | Trace | 0.2375 | 472,090 | ||
| 567,100 | |||||||||
| ” 10 | 2.404 | ” | 0.0618 | 0.500 | 0.0210 | 0.3277 | 549,334 | ||
| 518,950 | |||||||||
| ” 12 | 3.173 | 0 0070 | 0.1011 | 0.490 | 0.0182 | 0.2780 | 544,638 | ||
| 529,650 | |||||||||
| ” 13 | 3.269 | Nil | 0.0881 | 0.500 | 0.0238 | 0.5830 | 539,943 | ||
| 529,650 | |||||||||
| ” 14 | 4.528 | ” | 0.0681 | 0.667 | 0.0210 | 0.3015 | 539,943 | ||
| 540.350 | |||||||||
| ” 15 | 4.423 | ” | 0.0700 | 0.725 | 0.0420 | 0.2517 | 549,333 | ||
| 540,350 | |||||||||
| ” 16 | 4.134 | ” | 0.0262 | 0.725 | 0.0350 | 0.1975 | 530,553 | ||
| 508,250 | |||||||||
| ” 17 | 511,772 | ||||||||
| 518,950 | |||||||||
| ” 19 | 4.423 | ” | 0.0900 | 0.676 | 0.0210 | 0.7509 | 516,468 | ||
| 508,250 | |||||||||
| ” 20 | 4.038 | 0.0042 | 0.0795 | 0.689 | 0.0350 | 0.6212 | 532,393 | ||
| 508,250 | |||||||||
| ” 21 | 4.528 | Nil | 0.1400 | 0.621 | 0.0210 | 0.2127 | 530,553 | ||
| 497,550 | |||||||||
| ” 22 | 2.788 | ” | 0.0744 | 0.621 | 0.0210 | 0.1165 | 502,382 | ||
| 497,550 | |||||||||
| ” 23 | 1000 | ” | 0.1394 | 0.466 | 0.0238 | 0.2393 | 527,371 | ||
| ” 24 | 3.173 | ” | 0.0987 | 0.641 | 0.0350 | 0.1075 | 508,250 | ||
| 527,371 | |||||||||
| ” 26 | 2.885 | ” | 0.1944 | 0.600 | 0.0238 | 0.4149 | 508,250 | ||
| 527,371 | |||||||||
| ” 27 | 3.269 | ” | 0.0862 | 0.610 | 0.0280 | 0.3445 | 492,200 | ||
| 512,303 | |||||||||