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 Southall]
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Atmospheric Pollution Estimation
Month of Year | Sulphur Trioxide Lead Peroxide Method, Milligrams per day per 100 sq. cms. | DEPOSIT GAUGES | ||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Rainfall in Inches | Tons per Square Mile per Month | |||||||||||||||||||||||||||
Soluble | Insoluble | T otal | ||||||||||||||||||||||||||
Recreation Ground | Railway Allotment | Hortus Cemetery | New Primary School | Railway Allotment | Hortus Cemetery | New Primary School | Railway Allotment | Hortus Cemetery | New Primary School | Railway Allotment | Hortus Cemetery | New Primary School | Railway Allotment | |||||||||||||||
957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | 1957 | 1956 | |
January | 1.5 | 1.8 | 2.9 | 37 | 87 | 38 | 67 | 31 | 81 | 6.0 | 8.41 | 5.4 | 6.02 | 8.1 | 9.04 | 8.2 | 4.89 | 4.7 | 4.35 | 14.0 | 11.34 | 14.2 | 13.3 | 10.1 | 10.37 | 22.1 | 20.38 | |
February | 3.5 | 3.1 | 2.1 | 68 | 2 | 67 | 0.3 | 62 | 3.0 | 6.3 | 2.0 | 7.9 | 4.16 | 6.3 | 1.90 | 7.0 | 5.16 | 4.5 | 1.67 | 12.4 | 4.77 | 13.3 | 7.16 | 12.4 | 5.84 | 18.7 | 6.67 | |
March | 3.7 | 3.29 | 2.6 | 24 | 19 | 23 | 1 | 22 | 15 | 3.3 | 5.79 | 3.6 | 3.71 | 6.3 | 14.33 | 4.2 | 9.13 | 6.5 | 4.25 | 14.9 | 17.06 | 7.5 | 14.92 | 10.1 | 7.96 | 21.2 | 31.39 | |
April | 1.6 | 2.3 | 1.3 | 1 | 21 | 1 | 2 | 22 | 0.8 | 6.13 | 1.1 | 1.9 | 5.23 | 7.9 | 7.51 | 3.8 | 8.5 | 11.27 | 8.7 | 13.64 | 4.9 | 10.4 | 16.5 | |||||
May | 1.2 | 1.06 | 1.7 | 15 | 3 | 10 | 0.4 | 15 | 1.0 | 3.4 | 2.02 | 3.4 | 1.96 | 5.3 | 2.45 | 6.4 | 7.18 | 4.3 | 5.74 | 13.1 | 10.40 | 9.8 | 9.2 | 7.7 | 7.7 | 18.1 | 12.85 | |
June | 1.0 | 0.89 | 1.5 | 18 | 43 | 3 | 40 | 10 | 44 | 2.9 | 6.13 | 2.3 | 6.51 | 3.7 | 4.69 | 9.3 | 11.65 | 4.0 | 4.12 | 5.0 | 11.61 | 12.2 | 17.78 | 6.3 | 10.63 | 8.7 | 16.3 | |
July | 1.0 | 0.68 | 1.4 | 87 | 100 | 68 | 93 | 78 | 98 | 2.1 | 3.56 | 8.4 | 2.83 | 6.0 | 6.73 | 6.3 | 7.45 | 4.6 | 4.06 | 10.6 | 10.34 | 8.1 | 11.01 | 13.0 | 6.89 | 16.6 | 17.07 | |
August | 1.0 | 0.61 | 1.9 | 57 | 106 | 41 | 93 | 43 | 100 | 3.5 | 12.46 | 6.7 | 6.18 | 8.9 | 9.21 | 5.4 | 8.27 | 3.7 | 4.50 | 9.4 | 9.24 | 8.9 | 20.73 | 10.4 | 10.68 | 18.3 | 18.45 | |
September | 1.2 | 1.31 | 3.4 | 56 | 93 | 45 | 91 | 52 | 93 | 4.5 | 5.47 | 4.9 | 8.15 | 6.1 | 7.10 | 6.3 | 8.33 | 3.6 | 4.37 | 10.4 | 10.38 | 10.8 | 13.8 | 8.5 | 12.52 | 16.5 | 17.48 | |
October | 1.9 | 1.97 | 2.5 | 2.15 | 47 | 23 | 44 | 20 | 45 | 22 | 3.2 | 4.39 | 5.0 | 5.39 | 4.1 | 4.08 | 9.2 | 4.21 | 4.2 | 3.51 | 8.2 | 6.51 | 12.4 | 8.61 | 9.2 | 8.9 | 12.3 | 10.59 |
November | 2.68 | 2.8 | 2.53 | 56 | 10 | 49 | 8 | 50 | 10 | 4.3 | 4.94 | 6.2 | 5.75 | 6.2 | 4.75 | 2.0 | 7.98 | 4.7 | 3.48 | 6.0 | 6.29 | 6.3 | 12.92 | 10.9 | 9.23 | 12.2 | 11.04 | |
December | 2.1 | 1.84 | 3.9 | 28.5 | 38 | 65 | 32 | 63 | 36 | 58 | 4.6 | 5.67 | 6.6 | 8.74 | 6.0 | 9.11 | 10.9 | 4.43 | 4.1 | 5.67 | 18.9 | 16.89 | 15.5 | 10.1 | 10.5 | 14.41 | 24.9 | 26.0 |
Average for Year | 1.7 | 1.71 | 2.33 | 2.77 | 42 | 50 | 34.6 | 43 | 38.6 | 46 | 3.74 | 5.59 | 5.1 | 5.4 | 5.75 | 6.56 | 6.92 | 7.18 | 4.4 | 4.19 | 10.95 | 10.51 | 10.66 | 12.93 | 9.5 | 9.55 | 16.7 | 17.05 |