Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Annual report of the Medical Officer of Health for the year 1957
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Concentration of Smoke and Sulphur-Dioxide
Month | Smoke expressed in mgs. per cubic metre | Sulphur dioxide Expressed in parts per million | ||
---|---|---|---|---|
Monthly Average | Highest Daily Average | Monthly Average | Highest Daily Average | |
January | .281 | .722 | 9.60 | 25.00 |
February | .343 | .889 | 13.40 | 21.30 |
March | .222 | .630 | 10.40 | 21.30 |
April | .134 | .353 | 8.40 | 20.20 |
May | .066 | .189 | 6.00 | 11.60 |
June | .040 | .086 | 5.30 | 13.20 |
July | .045 | .131 | 6.44 | 20.80 |
August | .059 | .131 .183 | 7.13 | 15.40 |
September | .073 | .249 | 6.10 | 16.50 |
October | .280 | .920 | 11.97 | 32.83 |
November | .363 | .641 | 15.83 | 30.92 |
December | .631 | 2.310 | 25.77 | 94.92 |
Matter deposited in tons per square mile
Month | Grange Road | Brunei Road | ||
---|---|---|---|---|
Rainfall ins. | Matter deposited in tons per sq. ml. | Rainfall ins. | Matter deposited in tons, per sq. ml. | |
January | 1.32 | 17.72 | 1.30 | 18.79 |
February | 2.59 | 21.44 | 1.11 | 16.57 |
March | 0.69 | 20.13 | 0.72 | 22.37 |
April | 0.08 | 38.32 | 0.19 | 13.68 |
May | 0.67 | 21.82 | 0.19 | 19.77 |
June | 0.65 | 22.83 | 0.89 | 13.54 |
July | 3.65 | 24.94 | 4.04 | 23.84 |
August | 1.43 | 15.50 | 2.12 | 16.71 |
September | 2.02 | 12.02 | 1.95 | 17.47 |
October | 1.67 | 12.02 | 1.54 | 21.78 |
November | 1.82 | 27.47 | 1.64 | 21.78 |
December | 1.70 | 24.62 | 1.73 | 26.68 |