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The average concentration of smoke for the year ended 31st March, I960, was 17
milligrams per 100 cubic metres, compared with 22 milligrams for the previous nine
years - a decrease of 22.7%.whilst the concentration of sulphur dioxide for the same
period was 6.4 parts per 100 million, compared with 7.1 parts for the previous nine
years - a decrease of 9.9%.
The average smoke concentrations for the year ended 3lst March, 1960 (17 milligrams
per 100 cubic metres) and for the winter of 1959/60 (28 milligrams per 100 cubic
metres) were the lowest in Leyton since records began, and were considerably lower than
the figures for 1958/59.
1,660 visits of inspection were made under the Clean Air Act in connection with
the establishment of smoke control areas, observations of factory chimneys, inspection
of boiler installations, advice to boiler operatives on proper use of fuel and methods
of stoking, and discussions with managerial staff. It was necessary to institute legal
proceedings in respect of a contravention of the Dark Smoke (Permitted Periods) Regulations,
1958. The prosecution was successful and a fine of 10 guineas plus 10 guineas
costs was imposed.
Special surveys are in progress for the scientific measurement of grit and dust
deposited in specified parts of the Borough; for this purpose nine standard deposit
gauges are being used, the results from which are published monthly in the bulletin of
of the Department of Scientific and Industrial Research.
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