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Below are shown average figures in micrograms per cubic metre for
the year ending March 1969, as supplied by the Warren Springs
Laboratory. These are for two sites within the Borough. Site No.2 is
within and Site No.3 outside existing Smoke Control Areas.
Smoke S.0.2
Summer Winter Year Summer Winter Year
No. 2 John Bramston
School, Hainault 11 33 22 51 109 81
No. 3 17/23, Clements
Road, llford. 25 1 04 6 4 1 03 2 08 155
At a meeting of the Standing Conference of Co-operating Bodies on
2nd June 1969, a paper read at the meeting concluded that the reduction
in smoke appears to be continuing smoke concentrations in London
are now on an average not much higher than the urban areas in the
rest of the southern part of the country. Also London had by 1967-8
a concentration of smoke which was only 23-30% of the 1956 level.
With regard to sulphur dioxide, concentrations were, on the average,
about two thirds of their value ten years previously. Decreases are expected
to continue as natural gas and nuclear energy take over from the
more traditional fuels. Mo less an authority than the London Weather
Centre have praised the efforts of the London Clean Air Campaigns. In
an article in the Daily Express on Saturday, September 27th, 1969 headed
"The Cleaned-up Smoke gets a Place in the Sun", it was stated that
London today is seeing half as much winter sunshine again. This referred
to the months of November to January, and the comparison was made
against the long term average (1931-1960). The article went on to say
that this improvement was probably associated with the decrease of
smoke since the Clean Air Act came into force. The traditional London
"pea-souper" appears to have vanished and the last bad fog in London
was in December 1962.
(b) Smoke Control Areas:
Applications for conversions and adaptations on No. 15 (Cranbrook
and Park) Smoke Control Area are now being accepted and the Order for
this area will come into operation on the 1st July 1970.