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 1887

[Report of the Medical Officer of Health for Paddington]

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137
TABLE B.

Table: 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 and in the Lea water, the latter being delivered by the New River and East London Companies:—

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 and in the Lea water, the latter being delivered by the New River and East London Companies:—

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.
18681,000484
18691,016618
1870795550
1871928604
18721,243819
1873917693
1874933583
18751,030751
1876903562
1877907596
18781,056747
18791,165947
18801,2541,013
1881993765
18821,033711
1883850620
1884723500
1885839603
1886756500
1887690473

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