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investigated in detail by the Department and approved by
the Council. The application concerned the proposed
installation of new oil burning plant in place of an outof-date
solid fuel boiler.
In addition, six notifications were received of
proposals to alter boiler plant with a maximum rating
of less than 55,000 B.T.U's.
CLEAN AIR MEASURING STATIONS
Two main types of atmospheric pollution measuring
stations are being used in the Borough, namely, a
standard deposit gauge, and a lead peroxide candle of
which there are five in use in the Borough. There are
also three daily smoke and sulphur dioxide instruments
in regular use.
The deposit gauge and lead peroxide instruments
give details of the solids falling in the area and the
concentration of sulphur dioxide. These results are
analysed monthly by the Public Analyst.
By means of the daily smoke and sulphur dioxide
apparatus the amount of pollution from suspended smoke
and the amount of sulphur dioxide in the atmosphere can
be estimated.
To enable more detailed readings to be taken,
particularly where Smoke Control Areas are in operation
or proposed, the Council have decided to establish a
further nine daily smoke and sulphur dioxide measuring
instruments which would give further information on the
trend of pollution in a Smoke Control Area. To obtain
worthwhile results the instruments need to operate for a
number of years to compensate for chance variations, and
two instruments are to be used for each area, i.e. one
on the windward and the other on the leeward side.
The following table gives details of the monthly
measurements of deposits of sulphur trioxide and solid
matter at the five measuring stations in the Borough
during 1959.
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