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
ATMOSPHERIC POLLUTION RECORDING TABLE
Constituents | JANUARY | FEBRUARY | MARCH | APRIL | MAY | JUNE | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
WATER | 31.45 mm. rain Grams per 100 sq. metres | 1.24 in. rain Tons per square mile | 37.51 mm. rain Grams per 100 sq. metres | 1.48 in. rain Tons per square mile | 38.16 mm. rain Grains per 100 sq. metres | 1.50 in. rain Tons per square mile | 10.08 mm. rain Grams per 100 sq. metres | 0.40 in. rain Tons per square mile | 51.65 mm. rain Grams per 100 sq. metres | 2.04 in. rain Tons per square mile | 30.47 mm. rain Grams per 100 sq. metres | 1.20 in. rain Tons per square mile |
TOTAL WATER -INSOLUBLE MATTER | 499 | 12.72 | 1042 | 26.58 | 482 | 12.28 | 551 | 14.06 | 451 | 11.51 | 434 | 11.07 |
Soluble in CS2 | 5 | 0.13 | 8 | 0.20 | 11 | 0.27 | 5 | 0.13 | 4 | 0.10 | 3 | 0.07 |
Ash | 399 | 10.17 | 967 | 24.67 | 390 | 9.93 | 478 | 12.18 | 320 | 8.15 | 357 | 9.09 |
Other Combustible matter. | 95 | 2.42 | 67 | 1.71 | 82 | 2.08 | 68 | 1.75 | 128 | 3.25 | 75 | 1.91 |
TOTAL WATER - | ||||||||||||
SOLUBLE MATTER | 379 | 9.66 | 301 | 7.69 | 345 | 8.79 | 192 | 4.90 | 259 | 6.61 | 274 | 6.98 |
Ca++ | 45 | 1.14 | 43 | 1.11 | 50 | 1.27 | 33 | 0.84 | 39 | 1.01 | 38 | 0.97 |
Cl' | 55 | 1.41 | 49 | 1.24 | 39 | 1.01 | 28 | 0.70 | 20 | 0.50 | 24 | 0.60 |
SO"4 | 126 | 3.22 | 101 | 2.58 | 161 | 4.09 | 68 | 1.75 | 112 | 2.85 | 97 | 2.48 |
TOTAL SOLIDS | 878 | 22.38 | 1343 | 34.27 | 827 | 21.07 | 743 | 18.96 | 710 | 18.12 | 708 | 18.05 |
Wt. of S03 collected estimated on mg/100 sq. cm. /day. (Pb02 cylinder) | 4.61 | 4. 28 | 4.78 | 2.92 | 3.06 | 2.41 |