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 Ilford]
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Smoke Observation Records—May, 1957 to April, 1958
Average daily concentrations of :— | Mg. of SO3/ day collected by 100 sq. cm. of Batch A PbO2 (louvered cover) | Monthly Deposits | Tons per sq. mile | |||||||
---|---|---|---|---|---|---|---|---|---|---|
SMOKE in mg. per cubic metre | SULPHUR DIOXIDE in parts per 100 million | Water (litres) | PH Value | Water Insoluble matter | Ash | Other Combustible matter | Water Soluble matter | SO4 | ||
Station No.l | ||||||||||
Gantshell Library | ||||||||||
1957 May | 0.04 | 1.8 | 0.94 | 2.0 | 4.4 | 7.25 | 3.16 | 4.09 | 7.69 | 1.38 |
June | 0.04 | 1.8 | 0.60 | 1.35 | 4.1 | 3.39 | 0.74 | 2.65 | 5.50 | 0.97 |
July | 0.03 | 1.1 | 0.58 | 8.2 | 4.7 | 4.3 | 1.48 | 2.82 | 10.33 | 1.38 |
August | 0.05 | 1.8 | 0.61 | 2.25 | 4.8 | 3.93 | 2.72 | 1.21 | 4.73 | 1.01 |
September | 0.06 | 2.1 | 0.85 | 4.0 | 4.7 | 6.04 | 3.66 | 2.38 | 7.68 | 1.38 |
October | 0.07 | 5.4 | 1.5 | 3.5 | 4.4 | 7.69 | 4.70 | 2.99 | 6.74 | 2.05 |
November | 0.20 | 6.1 | 1.7 | 4.15 | 5.0 | 5.30 | 2.31 | 2.99 | 7.85 | 1.71 |
December | 0.37 | 14.5 | 2.7 | 2.6 | 4.5 | 6.88 | 2.52 | 4.36 | 7.01 | 2.25 |
1958 January | 0.34 | 9.6 | 2.3 | 3.35 | 3.9 | 9.67 | 4.16 | 5.51 | 7.59 | 1.71 |
February | 0.15 | 7.04 | 1.8 | 4.2 | 3.9 | 10.43 | 6.20 | 4.23 | 8.28 | 1.74 |
March | 0.21 | 7.5 | 1.60 | 1.65 | 4.5 | 6.37 | 4.36 | 2.01 | 5.67 | 1.17 |
April | 0.17 | 4.6 | 1.1 | 3.10 | 4.3 | 6.68 | 2.92 | 3.76 | 5.84 | 1.17 |
Station No. 2 | ||||||||||
John Bramston School | ||||||||||
1957 May | 0.03 | 1.2 | 0.83 | 1.15 | 3.8 | 6.94 | 3.79 | 3.15 | 7.52 | 1.51 |
June | 0.03 | 1.6 | 0.91 | 1.7 | 3.9 | 5.43 | 3.49 | 1.94 | 6.17 | 1.04 |
July | 0.02 | 1.0 | 0.73 | 6.65 | 4.6 | 3.52 | 1.61 | 1.91 | 8.29 | 0.84 |
August | 0.03 | 1.5 | 0.80 | 2.55 | 5.0 | 1.75 | 0.87 | 0.87 | 5.20 | 0.77 |
September | 0.05 | 1.6 | 1.1 | 3.65 | 4.3 | 4.29 | 2.88 | 1.41 | 5.87 | 1.27 |
October | 0.06 | 3.3 | 1.9 | 2.85 | 4.4 | 2.88 | 0.67 | 2.21 | 5.44 | 1.41 |
November | 0.17 | 4.2 | 2.1 | 3.75 | 4.5 | 3.69 | 1.95 | 1.74 | 7.45 | 1.44 |
December | 0.30 | 8.04 | 3.6 | 2.25 | 4.6 | 5.07 | 2.72 | 2.35 | 7.41 | 2.11 |
1958 January | 0.24 | 5.7 | 2.5 | 3.5 | 4.1 | 6.21 | 3.76 | 2.45 | 8.19 | 1.88 |
February | 0.13 | 4.1 | 2.4 | 3.6 | 3.9 | 7.63 | 4.84 | 2.79 | 6.61 | 1.34 |
March | 0.12 | 3.6 | 1.4 | 1.35 | 4.5 | 4.56 | 3.12 | 1.44 | 4.39 | 0.57 |
April | 0.12 | 2.9 | 1.1 | 2.40 | 4.0 | 4.70 | 1.91 | 2.79 | 4.50 | 0.97 |
Station No. 3 | ||||||||||
Ilford Town Hall | ||||||||||
1957 May | 0.07 | 3.0 | 1.6 | 1.9 | 3.9 | 4.67 | 1.13 | 3.54 | 9.47 | 0.90 |
June | 0.05 | 2.9 | 1.1 | 0.25 | 4.1 | 4.27 | 2.30 | 1.97 | 3.90 | 1.07 |
July | 0.04 | 2.8 | 1.2 | 7.5 | 4.7 | 5.24 | 2.0 | 3.24 | 10.8 | 1.53 |
August | 0.05 | 2.9 | 1.1 | 1.45 | 5.1 | 3.54 | 2.27 | 1.27 | 4.67 | 1.37 |
September | 0.09 | 4.0 | 1.7 | 2.7 | 4.3 | 5.94 | 3.87 | 2.07 | 8.04 | 2.07 |
October | 0.37 | 8.9 | 3.1 | 2.25 | 4.1 | 6.30 | 3.23 | 3.07 | 6.97 | 2.00 |
November | 0.27 | 9.1 | 3.3 | 2.3 | 4.5 | 9.74 | 5.07 | 4.67 | 8.47 | 1.97 |
December | 0.49 | 19.1 | 4.5 | 2.0 | 4.3 | 10.47 | 4.74 | 5.73 | 11.97 | 3.03 |
1958 January | 0.42 | 13.5 | 4.0 | 1.95 | 3.6 | 9.10 | 5.67 | 3.43 | 8.24 | 0.67 |
February | 0.21 | 12.8 | 3.2 | 2.8 | 3.8 | 11.94 | 6.17 | 5.77 | 8.67 | 2.23 |
March | 0.31 | 10.5 | 2.2 | 1.15 | 4.2 | 2.57 | 0.67 | 1.90 | 5.97 | 1.23 |
April | 0.24 | 8.2 | 2.3 | 2.60 | 4.1 | 6.30 | 0.77 | 5.53 | 7.70 | 1.67 |