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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Graph C
Atmospheric Pollution by Sulphur Oxides (Lead Peroxide Method)
Lead Peroxide Gauge at Jubilee Gardens
[Atmospheric Sulphur Dioxide S03(Mgs/Day/1oo/Cms2)]
Lead Peroxide Recreation Ground
[Atmospheric Sulphur Dioxide S03(Mgs/Day/1oo/Cms2)]
Lead Peroxide Railway Allotments
[Atmospheric Sulphur Dioxide S03(Mgs/Day/1oo/Cms2)]
MILLIGRAMS PER DAY PER 100 SQUARE CMS.
40