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 Hammersmith Borough]
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Description of the Samples | Number of Samples Day of the Month | Ammoniacal Nitrogen | Albuminoid Nitrogen | Nitrate Nitrogen | Oxygen abs. from KMnO44 hrs at 27° C | B.O.D. 5 days at 20°c | Hardness (total) CaCO3 | Hardness (non-carbonate) CaCO3 | Magnesium as Mg | Sodium as Na | Potassium as K | Chloride as cl | Phosphate as P04 | Silicate as Si02 | Sulphate as S04 | Natural Flouride as F | Surface-active material as Manoxal O.T | Turbidty units | Colour (Burgess units) | PH value | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) | (15) | (16) | (17) | (18) | (19) | (20) | (21) | (22) |
River Thames - Derived | 363 | 0.026 | 0.083 | 4.8 | 1.02 | - | 274 | 79 | 5 | 27.7 | 5.6 | 40 | 2.7 | 9 | 70 | 0.20 | 0.03 | 0.1 | 1† | 7.9 |
B. 17
B. 17