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. | ||
| 1898. | |||||||||
| Dec. 8 | 5.000 | 3.500 | 0.6300 | Nil | 1.100 | 0.551 | 0.0280 | 0.6420 | 574,797 |
| 557,506 | |||||||||
| ” 9 | 4.000 | 3.800 | 0.0560 | 0.0221 | 0.800 | 0.551 | 0.0210 | 0.4690 | 605,676 |
| 524,300 | |||||||||
| ” 10 | 4.000 | 3.800 | Trace | 0.0656 | 0.900 | 0.622 | 0.0280 | 0.3420 | 588,500 |
| 583,150 | |||||||||
| ” 12 | 6.000 | 4.500 | 0.0737 | 0.900 | 0.550 | 0.0210 | 0.7502 | 588,500 | |
| 540,350 | |||||||||
| ,, 13 | 6.000 | 4.700 | 0.0140 | Nil | 1.200 | 0.640 | 0.0238 | 0.3468 | 540,651 |
| ,, 14 | 4.000 | 2.700 | 0.0490 | ” | 0.700 | 0.530 | 0.0210 | 0.4040 | 569,106 |
| 552,033 | |||||||||
| ” 15 | 5.000 | 4.300 | 0.0420 | ” | 1.100 | 0.620 | 0.0238 | 0.2199 | 558,724 |
| 567,100 | |||||||||
| ” 16 | 5.000 | 4.800 | 0.0070 | 0.0199 | 1.100 | 0.650 | 0.0280 | 0.1507 | 572,450 |
| 597,562 | |||||||||
| ” 17 | 4.000 | 3.700 | Nil | 0.0806 | 2.300 | 0.630 | 0.0378 | 0.1759 | 557,555 |
| 557,724 | |||||||||
| ” 19 | 6.000 | 4.700 | 0.0112 | 0.1363 | 1.300 | 0.690 | 0.0280 | 0.3395 | 572,450 |
| 572,450 | |||||||||
| ” 20 | 6.000 | 5.300 | 0.0210 | 0.1059 | 1.200 | 0.683 | 0.0238 | 0.3512 | 545,700 |
| 561,750 | |||||||||
| ” 21 | 6.000 | 5.200 | 0.0112 | 0.1063 | 1.200 | 0.702 | 0.0420 | 0.1967 | 551,050 |
| 551,050 | |||||||||
| ” 22 | 7.000 | 5.100 | Trace | 0.6375 | 1.400 | 0.712 | 0.0182 | 0.1462 | 545,700 |
| 545,700 | |||||||||
| ” 23 | 6.000 | 5.400 | Nil | 0.0394 | 1.300 | 0.697 | 0.0140 | 0.1522 | 545,700 |
| 567,100 | |||||||||
| ” 24 | 3.000 | 2.900 | 0.1400 | 0.3062 | 1.000 | 0.545 | 0.0376 | 1.1676 | 524,300 |
| ” 28 | 588,500 | ||||||||
| 535,000 | |||||||||
| ” 29 | 4.000 | 3.800 | 0.0700 | 0.1362 | 1.100 | 0.545 | 0.0182 | 0.3093 | 535,000 |
| 535,000 | |||||||||
| ” 30 | 3.000 | 2.600 | 0.0560 | 0.0802 | 2.000 | 0.762 | 0.0322 | 0.2228 | 545,700 |
| 535,000 | |||||||||
| ” 31 | 6.000 | 4.100 | Nil | 0.0231 | Lost | 0.663 | 0.0182 | 0.1143 | 518,950 |
| 1899 | |||||||||
| Jan. 2 | 5.880 | 4.118 | 0.1400 | Nil | 1.473 | 0.577 | 0.0210 | 0.5259 | 569,764 |
| 561,750 | |||||||||
| ” 3 | 6.860 | 4.706 | 0.0070 | 0.0417 | 1.276 | 0.663 | 0.0210 | 0.5877 | 549,416 |
| 540,350 | |||||||||
| ” 4 | 7.000 | 4.500 | Nil | 0.0337 | 1.400 | 0.635 | 0.0420 | 0.2011 | 577,505 |
| 551,050 | |||||||||
| ” 5 | 7.000 | 4.600 | 0.1190 | Nil | 1.400 | 0.712 | 0.1050 | 0.0675 | 568,114 |
| 524,300 | |||||||||
| ” 6 | 7.000 | 4.600 | 0.0240 | 1.500 | 0.683 | 0.0700 | Nil | 551,050 | |
| 540,350 | |||||||||
| ” 7 | 6.000 | 4.200 | Nil | 0.0344 | 1.200 | 0.606 | 0.0910 | 0.0959 | 556,400 |
| 556,400 | |||||||||
| ” 9 | 10.000 | 4.800 | 0.0140 | 0.1047 | 1.300 | 0.400 | 0.0840 | 0.0822 | 588,500 |
| ” 10 | 6.000 | 4.300 | 0.0182 | 0.0112 | 1.300 | 0.680 | 0.0742 | 0.1183 | 561,750 540,350 |
| 535,000 | |||||||||
| ” 11 | 4.000 | 2.500 | 0.1400 | Nil | 1.300 | 0.580 | 0.0350 | 0.2606 | 545,700 |
| ” 12 | 4.000 | 2.700 | 0.1050 | ” | 1.000 | 0.610 | 0.0210 | 0.2190 | 561,750 |
| 563,415 | |||||||||
| ” 13 | 3.000 | 3.200 | 0.2800 | ” | 0.900 | 0.580 | 0.0560 | 0.3084 | 569,106 |
| 548,923 | |||||||||
| ” 14 | 4.000 | 2.700 | 0.1050 | ” | 1.000 | 0.560 | 0.0420 | 0.5275 | 552,033 |
| 557,724 | |||||||||
| ” 16 | 4.000 | 3.300 | 0.3500 | ” | 1.000 | 0.560 | 0.0490 | 0.6667 | 591,871 |
| 572,450 | |||||||||
| ” 17 | 4.000 | 3.600 | 0.2100 | ” | 1.000 | 0.570 | 0.0420 | 0.5380 | 540,350 |
| 561,750 | |||||||||
| ” 18 | 8.000 | 5.400 | 0.1050 | ” | 1.400 | 0.750 | 0.0280 | 0.5451 | 540,350 |
| ” 19 | 6.000 | 4.100 | 0.1190 | ” | 1.200 | 0.654 | 0.0420 | 0.3811 | 521,224 |
| 529,067 | |||||||||
| ” 20 | 5.000 | 4.800 | 0.0280 | ” | 1.300 | 0.635 | 0.0140 | 0.2872 | 537,206 |
| 533,137 | |||||||||