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

Paddington 1890

[Report of the Medical Officer of Health for Paddington]

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Table: TABLE A.Taking the mean proportion of organic impurity in the Thames water delivered in London in 1868 as 1,000, in the subsequent years the following proportions were present respectively in the Thames water, in the Lea water, and in the Deep Well water.

TABLE A.

Taking the mean proportion of organic impurity in the Thames water delivered in London in 1868 as 1,000, in the subsequent years the following proportions were present respectively in the Thames water, in the Lea water, and in the Deep Well water.

Year.Proportion of organic impurity present in Thames water as delivered in London.Proportion of organic impurity present in Lea water as delivered in London.Proportion of organic impurity present in Deep Well water as delivered in London.
18681,000484254
18691,016618312
1870795550246
1871928604150
18721,243819221
1873917693250
1874933583287
18751,030751250
1876903562246
1877907596243
18781,056747323
18791,165947387
18801,2541,013393
1881993765405
18821,033711409
1883850620321
1884723500264
1885839603200
1886756500244
1887690473249
1888722506241
1889677504268
1890680432252

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* For purposes of comparison the average yearly amount of organic elements
(organic carbon and organic nitrogen) found during the nine years ending 1876
in the water supplied by the Kent Company is taken as the unit.