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 Kingston-upon-Thames]
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Smoke and Sulphur Dioxide, 1962.
Results obtained from the Volumetric
Instrument at Tiffin Girls’ School.
SMOKE-Mioregrammes per cu.m.
so2 - Microgrammes per eu.m.