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 Hornsey, Borough of]
This page requires JavaScript
Date | Time | Archway Road | Shepherds Hill | |
---|---|---|---|---|
a. m. | p.m. | |||
Comparison of Recordings
During past years 68 London sites showed overall averages for
smoke concentrations as follows:-
Summer (April to September) 100
Winter (October to March) 310
Yearly (April to March) 209
Sample results under special atmospheric conditions were as
follows:-
5th - 8th December 1952 - The Great London Smog. The average
concentration in the Thames Valley was 3750. At Woolwich figures
of 5430 and 5220 were recorded.
During November 1959, hourly readings were taken at Greenwich during
light fog conditions and the maximum reading obtained over three days
was 3600.
33