Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Paddington]
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187
N 2
TABLE A.
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. |
---|---|---|---|
1868 | 1,000 | 484 | 254 |
1869 | 1,016 | 618 | 312 |
1870 | 795 | 550 | 246 |
1871 | 928 | 604 | 150 |
1872 | 1,243 | 819 | 221 |
1873 | 917 | 693 | 250 |
1874 | 933 | 583 | 287 |
1875 | 1,030 | 751 | 250 |
1876 | 903 | 562 | 246 |
1877 | 907 | 596 | 243 |
1878 | 1,056 | 747 | 323 |
1879 | 1,165 | 947 | 387 |
1880 | 1,254 | 1,013 | 393 |
1881 | 993 | 765 | 405 |
1882 | 1,033 | 711 | 409 |
1883 | 850 | 620 | 321 |
1884 | 723 | 500 | 264 |
1885 | 839 | 603 | 200 |
1886 | 756 | 500 | 244 |
1887 | 690 | 473 | 249 |
1888 | 722 | 506 | 241 |
1889 | 677 | 504 | 268 |
1890 | 680 | 432 | 252 |
1891 | 1,002 | 684 | 357 |
1892 | 831 | 338 | 338 |