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 Poplar, Metropolitan Borough]
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TABLE VII (Contd.)
CONSTITUENTS | JULY | AUGUST | SEPTEMBER | OCTOBER | NOVEMBER | DECEMBER | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
WATER | 43 mm. rain | 1.69 in. rain | 54 mm. rain | 2.13 in. rain | 49 mm. rain | 1.93 in. rain | 59 mm. rain | 2.32 in. rain | 59 mm. rain | 2.32 in. rain | 68 mm. rain | 2.68 in. rain |
Grams per 100 sq. metres | Tons per square mile | Grams per 100 sq. metres | Tons per square mil e | Grams per 100 sq. metres | Tons per square mile | Grams per 100 sq. metres | Tons per square mile | Grams per 100 sq. metres | Tons per square mile | Grams per 100 sq. metres | Tons per square mile | |
Total Water — Insoluble Matter | 367 | 9.36 | 274 | 6.98 | 686 | 17.48 | 501 | 12.79 | 422 | 10.77 | 666 | 16.98 |
Soluble in CS2 | 3 | 0.07 | 4 | 0.10 | 7 | 0.17 | 5 | 0.13 | 4 | 0.10 | 3 | 0.07 |
Ash | 291 | 7.42 | 216 | 5.50 | 582 | 14.83 | 393 | 10.03 | 340 | 8.66 | 446 | 11.38 |
Other combustible matter | 74 | 1.88 | 54 | 1.38 | 97 | 2.48 | 103 | 2.62 | 79 | 2.01 | 217 | 5.54 |
Total Water — Soluble Matter | 216 | 5.50 | 217 | 5.54 | 346 | 8.83 | 533 | 13.59 | 386 | 9.83 | 544 | 13.86 |
Ca++ | 24 | 0.60 | 25 | 0. 64 | 51 | 1.31 | 42 | 1.07 | 42 | 1.07 | 51 | 1.31 |
Cl' | 17 | 0.44 | 17 | 0.44 | 26 | 0.67 | 46 | 1. 17 | 61 | 1.54 | 79 | 2.01 |
SO" 4 | 64 | 1.64 | 82 | 2.08 | 138 | 3.52 | 137 | 3.49 | 149 | 3.79 | 157 | 3.99 |
TOTAL SOLIDS | 583 | 14.86 | 491 | 12.52 | 1032 | 26.31 | 1034 | 26.38 | 808 | 20.60 | 1210 | 30.84 |
Wt. of S03 collected estimated on mg./100 Sq. c./day (PbO cylinder) 2 | 1.15 | 1.42 | 2.27 | 2.82 | 3.53 | 4.13 |