London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Hackney 1959
[Report of the Medical Officer of Health for Hackney]
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AIR POLLUTION
Table II: Concentration of smoke, and Sulphur Dioxide by the Volumetric Method,
| Jan. | Feb. | Mar. | Apr. | May. | June. | July. | Aug. | Sep. | Oct. | Nov. | Dec. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Monthly Average | - | - | 32 | 22 | - | - | 9 | 12 | 23 | 55 | ||
| Highest Daily Average | - | 78 | 47 | - | - | - | 14 | 24 | 41 | 152 | - | |
| Monthly Average | - | - | 7 | 6 | - | - | - | 3 | 5 | 6 | 12 | - |
| Highest Daily Average | - | - | 17 | 15 | - | - | - | 6 | 10 | 13 | 39 | - |
| Monthly Average | 44 | 37 | 21 | 15 | 7 | 6 | 5 | 6 | 7 | 11 | 27 | 17 |
| Highest Daily Average | 121 | 144 | 39 | 34 | 27 | 13 | 12 | 12 | 19 | 23 | 83 | 57 |
| Monthly Average | 15 | 13 | 8 | 8 | 5 | 3 | 2 | 3 | 4 | 4 | 2 | 2 |
| Highest Daily Average | 48 | 67 | 14 | 23 | 11 | 7 | 6 | 7 | 8 | 7 | 4 | 3 |
| Monthly Average | 39 | 38 | 19 | 12 | 6 | 4 | 4 | 6 | 5 | 11 | 30 | 19 |
| Highest Daily Average | 125 | 134 | 51 | 30 | 21 | 6 | 6 | 13 | 1 4 | 30 | 78 | 52 |
| Monthly Average | 7 | 10 | 3 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Highest Daily Average | 27 | 46 | 8 | 14 | 6 | 3 | 3 | 2 | 3 | 3 | 7 | 5 |
Figures for Smoke are expressed in "milligrams per 100 cubic metres", for Sulphur Dioxide in "Parts per 100 million parts of air".