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46
The following table shows the cost of the work of adaptation to
fireplaces made necessary by the Orders that have been made. This is
based on claims for grant met up to 31st December, 1962.
No. of Total cost of Cost of Total amount
claims settled work involved Approved work of grant paid
974 £16,023 £12,322 £8,729
Of the above sum of grant paid £106 represents the cost to the
Corporation of additional grants to approved applications on the grounds
of hardship.
It is interesting to note from the figures that householders are on an
average spending on the adaptations nearly double the amount of money
they receive by way of grant.
Industrial Premises.
Two more of the larger industrial premises in the district with boiler
plants using coal as a fuel with hand controlled stoking have installed new
fully autmomatic oil fired installations during the year, leaving only two
hand fired steam raising boiler plants in operation within the Borough. At
the end of the year a discussion took place with the management of one of
these establishments and it is expected that a new boiler plant will be
installed here during 1963.
National Survey of Air Pollution.
Harrow is one of the towns co-operating in this survey with the
Warren Spring Laboratory of the Department of Industrial and Scientific
Research. Four recording stations were set up during the year and
measurements of smoke and sulphur dioxide commenced during the
Autumn. Each station is in a different type of district.
Station No. 1 is at the offices of the Health Department, Harrow
Weald, in an area of light development, boarded by green belt. Station No.
2 is situated at a factory in Wealdstone, in a heavily developed area,
including dwelling houses and industrial premises. Station No. 3 is at a
school in Roxeth in an area covered by Smoke Control Orders, and
Station No. 4 is at a school in Stanmore in a similar built up area, which
is not smoke controlled.
The readings produced by all stations participating in the survey are
submitted to the Warren Spring Laboratory, and the observations are
summarised and a monthly bulletin issued giving the average and the
highest daily concentrations of smoke and sulphur dioxide in microgrammes
per cubic metre.
The calculations necessary to produce daily concentration figures
from the instrument readings would normally be done by compute
through the Warren Spring Laboratory but as the computer programme
is not yet up to date provisional figures have been produced in the
department.