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 I.—SINGLE AND DOUBLE COKE-BEDS—
| Date. | Number of grains of oxygen absorbed in 4 hours by one gallon of | |||
|---|---|---|---|---|
| Raw sewage. | Effluent from the single coke-bed (4 feet). | Effluent from the primary coke-bed (6 feet). | Effluent from the secondary cokebed (6 feet). | |
| 1899. | ||||
| January 17 | 2.680 | 1.444 | 1.546 | 1.237 |
| ,, 18 | 3.390 | 1.939 | 1.633 | .020 |
| ,, 19 | 3.082 | 1.531 | 1.663 | .918 |
| ,, 20 | 4.286 | 2.450 | 2.551 | 1.429 |
| „ 21 | 4.000 | 1.895 | 2.105 | 1.158 |
| ,, 23 | 2.800 | 1.500 | 1.600 | .900 |
| „ 24 | 3.232 | 1.717 | 1.717 | 1.111 |
| ,, 25 | 3.030 | 1.717 | 1.616 | .888 |
| „ 26 | 2.500 | 1.300 | 1.500 | 1.000 |
| ,, 27 | 3.900 | 1.900 | 2.200 | 1.100 |
| ,, 28 | 3.417 | 1.935 | 1.709 | 1.093 |
| ,, 30 | 3.093 | 1.752 | 1.752 | 1.031 |
| ,, 31 | 2.680 | 1.546 | 1.444 | .928 |
| February 1 | 4.000 | 2.152 | 2.316 | 1.052 |
| ,,2 | 2.959 | 1.633 | 1.735 | .817 |
| ,, 3 | 4.286 | 2.450 | 2.551 | 1.428 |
| ,, 4 | 3.542 | 1.980 | 1.771 | 1.146 |
| ,, 6 | 3.480 | 1.826 | 1.938 | .965 |
| ,, 7 | 2.844 | 1.630 | 1.630 | .933 |
| ,, 9 | 4.275 | 2.200 | 2.436 | 1.112 |
| ,, 10 | 3.500 | 1.800 | 1.900 | 1.000 |
| ,, 11 | 4.061 | 2.354 | 2.579 | 1.270 |
| ,, 13 | 3.488 | 1.860 | 1.959 | 1.163 |
| ,, 14 | 4.048 | 2.326 | 2.471 | 1.294 |
| 15 | 3.372 | 1.647 | 1.895 | 1.170 |
| „ 16 | 2.706 | 1.512 | 1.512 | .948 |
| ,, 17 | 2.495 | 1.163 | 1.368 | .841 |
| ,, 18 | 3.139 | 1.647 | 1.774 | 1.059 |
| Average | 3.696 | 1.747 | 1.851 | 1.137 |