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
Enfield 1955
[Report of the Medical Officer of Health for Enfield]
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The monthly analyses of the contents of the deposit gauges and the daily average concentrations of sulphur trioxide for each month are set out below:—
| Station 1. | Rainfall (ra.m.) | Ph. Value. | Dissolved Solids. (Tons per sq. mile) | Suspended Solids. (Tons per sq. mile) | Total Solids. (Tons per sq. mile) | s.o3. |
|---|---|---|---|---|---|---|
| Jan. | 52.56 | 5.0 | 7.506 | 9.870 | 17.376 | 3.25 |
| Feb. | 35.57 | 4.8 | 6.35 | 5.07 | 11.42 | 2.0 |
| Mar. | Gauge interfered with—No figures availab le. | |||||
| Apr. | 22.22 | 5.2 | 2.664 | 10.02 | 12.684 | 1.6 |
| May | 105.6 | 6.5 | 4.581 | 13.55 | 18.131 | 1.36 |
| June | 61.79 | 6.4 | 5.67 | 10.61 | 16.28 | .77 |
| July .. | 3.924 | 6.0 | 1.751 | 5.093 | 6.844 | .40 |
| Aug. | 32.92 | 6.8 | 5.042 | 8.112 | 13.154 | .49 |
| Sept. | 45.51 | 6.5 | 3.48 | 7.12 | 10.60 | .69 |
| Oct. | 84.07 | 6.2 | 11.58 | 5.93 | 17.51 | 1.34 |
| Nov. | 20.92 | 5.5 | 8.108 | 8.596 | 16.704 | 2.43 |
| Dec. | 49.63 | 5.6 | 2.661 | 11.62 | 14.281 | 2.45 |
| Average | 46.792 | 5.863 | 5.399 | 8.690 | 14.089 | 1.52 |
| Station 2. | ||||||
| Jan. | Gauge damaged. | |||||
| Feb. | 24.21 | 5.0 | 5.37 | 3.68 | 9.05 | 1.45 |
| Mar. | 21.71 | 5.7 | 1.662 | 5.396 | 7.058 | 1.69 |
| Apr. * | 11.84 | 5.3 | 3.594 | 6.563 | 10.157 | — |
| May * | 108.43 | 6.5 | 7.103 | 5.507 | 12.610 | 2.4 |
| June | 50.34 | 6.4 | 3.98 | 3.73 | 7.71 | .51 |
| July | .987 | 6.9 | .957 | 1.694 | 2.651 | .24 |
| Aug. | 26.32 | 6.9 | 2.886 | 6.212 | 9.098 | .45 |
| Sept. * | 42.5 | 6.5 | 3.794 | 5.316 | 9.11 | .88 |
| Oct. | 56.11 | 6.2 | 8.73 | 5.49 | 14.22 | 1.56 |
| Nov. | 12.89 | 4.8 | 8.221 | 12.76 | 20.981 | 2.49 |
| Dec. | 37.77 | 5.6 | 5.394 | 8.604 | 13.998 | 1.86 |
| Average | 35.737 | 5.98 | 4.699 | 5.905 | 10.604 | 1.57 |
| Station 3. | ||||||
| Jan. † | 43.98 | 6.6 | 4.484 | 16.65 | 21.134 | 3.2 |
| Feb. | 31.58 | 5.5 | 5.15 | 6.89 | 12.04 | 1.8 |
| Mar. | 32.24 | 6.3 | 1.069 | 7.464 | 8.533 | 0.9 |
| Apr. * | 21.98 | 6.0 | 3.586 | 11.82 | 15.406 | 1.0 |
| May * | 103.9 | 6.5 | 7.017 | 8.547 | 15.564 | _ |
| June | 62.69 | 6.3 | 4.657 | 7.638 | 12.295 | .2 |
| July | 5.58 | 6.2 | 2.139 | 2.567 | 4.706 | .09 |
| Aug. | 32.37 | 7.0 | 3.054 | 4.900 | 7.954 | .14 |
| Sept. * | 48.42 | 6.5 | 1.48 | 11.36 | 12.84 | .38 |
| Oct. | 85.00 | 6.0 | 12.57 | 12.67 | 25.24 | .7 |
| Nov. | 16.85 | 6.5 | 4.295 | 13.67 | 17.965 | 1.07 |
| Dec. | 49.08 | 5.7 | 2.003 | 7.487 | 9.490 | 1.23 |
| Average | 44.47 | 6.26 | 4.292 | 9.305 | 13.597 | 0.89 |
* The suspended solids in these results contained large
numbers of small insects.
† This gauge was found to contain large quantities of what
appeared to be coal dust.