London's Pulse: Medical Officer of Health reports 1848-1972

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Southall 1962

[Report of the Medical Officer of Health for Southall]

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Graph C
Atmospheric Pollution by Sulphur Oxides (Lead Peroxide Method)
48
Sulphur Compounds as Milligrams SO3 per day per 100 sq. cm.
Lead Peroxide Gauge at Railway Allotments
Lead Peroxide Gauge at The Recreation Ground