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
Leyton 1959
[Report of the Medical Officer of Health for Leyton]
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TABLE 1
AIR POLLUTION RECORDS FOR TEN YEARS ENDED 31st MARCH, I960.
| YEAR ending 3lst March. | SMOKE (Milligrams per 100 cubic metres) | SULPHUR DIOXIDE (parts per 100 million) | ||||
|---|---|---|---|---|---|---|
| Summer | Winter | Year | Summer | Winter | Year | |
| 1951 | 11 | 37 | 24 | 2.9 | 9.4 | 6.2 |
| 1952 | 9 | 37 | 23 | 2.6 | 9.3 | 5.9 |
| 1953 | 8 | 40 | 24 | 3.1 | 10.4 | 6.7 |
| 1954 | 6 | 29 | 18 | 2.9 | 10.1 | 6.5 |
| 1955 | 7 | 30 | 18 | 4.4 | 11.3 | 7.8 |
| 1956 | 7 | 35 | 21 | 3.7 | 10.9 | 7.3 |
| 1957 | 8 | 38 | 23 | 3.9 | 10.6 | 7.3 |
| 1958 | 9 | 35 | 22 | 4.0 | 11.3 | 7.6 |
| 1959 | 8 | 39 | 24 | 4.3 | 13.1 | 8.7 |
| 1960 | 7 | 28 | 17 | 3.8 | 9.1 | 6.4 |
| 10 year's average | 8 | 35 | 21 | 3.6 | 10.6 | 7.0 |
TABLE 2
CONCENTRATION OF SMOKE EXPRESSED IN MILLIGRAMS PER 100 CUBIC METRES
| MONTH | MONTHLY AVERAGE | HIGHEST DAILY AVERAGE | LOWEST DAILY AVERAGE | |||
|---|---|---|---|---|---|---|
| 1950/59 | 1959/60 | 1950/59 | 1959/60 | 1950/59 | 1959/60 | |
| April | 18 | 16 | 41 | 35 | 8 | 6 |
| May | 8 | 6 | 21 | 15 | 3 | 1 |
| June | 5 | 5 | 10 | 12 | 1 | 2 |
| July | 4 | 4 | 9 | 9 | 1 | 1 |
| August | 6 | 5 | 10 | 11 | 2 | 1 |
| September | 8 | 5 | 18 | 12 | 3 | 1 |
| SUMMER AVERAGE | 8 | 7 | - | - | - | - |
| October | 24 | 16 | 76 | 46 | 7 | 6 |
| November | 39 | 42 | 101 | 119 | 13 | 14 |
| December | 45 | 28 | 131 | 70 | 13 | 10 |
| January | 40 | 30 | 109 | 114 | 13 | 10 |
| February | 36 | 31 | 81 | 101 | 16 | 12 |
| March | 29 | 21 | 76 | 40 | 12 | 8 |
| WINTER AVERAGE | 35 | 28 | - | - | - | - |
| YEARLY AVERAGE | 22 | 17 | - | - | - | - |
(32)