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 Brentford and Chiswick]
This page requires JavaScript
GRAPH D
COMPARISON OF CONCENTRATIONS OF SMOKE IN THE AIR AT BRENTFORD, CHISWICK
(2 STATIONS) CENTRAL LONDON, LEEDS AND LERWICK DURING 1962
CONCENTRATIONS EXPRESSED IN MICROGRAMMES PER CUBIC METRE
-50-