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
Holborn 1927
[Report of the Medical Officer of Health for Holborn Borough]
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| Jan. | Feb. | March | April | May | June | July | August | Sept. | Oct. | Nov. | Dec. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| London— | ||||||||||||
| Hampstead | 0.39 | 0.55 | 1.34 | 2.55 | 3.9 | 3.22 | 3.15 | 4.15 | 2.66 | 1.42 | 0.50 | 0.32 |
| Kingsway | 0.21 | 0.21 | 0.74 | 1.50 | 3.45 | 2.57 | 2.83 | 3.03 | 2.53 | 1.38 | 0.45 | 0.26 |
| Lowestoft | 1.50 | 1.39 | 3.16 | 2.96 | 3.48 | 3.66 | 4.27 | 4.67 | 3.06 | 3.22 | 0.88 | 0.71 |
| Ventnor | 2.77 | 2.48 | 3.29 | 3.86 | 5.19 | 5.42 | 4.53 | 5.08 | 3.50 | 2.33 | 0.96 | 0.42 |
| Hull | 0.18 | 0.23 | 0.55 | 0.86 | 1.43 | 2.13 | 2.79 | 2.61 | 1.47 | 1.42 | 0.75 | 0.34 |
This table represents biologically active ultra.violet rays measured by the acetone blue fading method.
One degree on the scale equals 2.4 times the amount of ultra-violet required to produce a very moderate erythema of the white arm—arms
differing in sensitiveness.