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(c) New Furnaces.
Nine notifications under Section 3 of the Clean Air Ast
were received regarding the installation of new furnaces. It
is interesting to note that all eicept the smallest of them were
oil fired.
One application for prior approval was received but the
applicant was not prepared to meet the Council's requirements
and the application was therefore not granted.
(d) The Dark Smoke (Permitted Periods) Regulations, 1958.
These regulations lay down the maximum period for which
dark and black smoke may be emitted from industrial furnaces.
One contravention was observed and dealt with by a warning
letter. The firm concerned undertook to install a smoke warning
device.
(e) Grit and Dust.
No complaints were received during the year and on the
whole the position is considered to be reasonably satisfactory.
In one or two specific cases it is doubtful whether the require
ments of Section 5 of the Act are being fully met. The Section
requires the emission of dust and grit to be minimised, i.e.
reduced to a practicable minimum but if the emission expressed
in terms of grains per cubic meter of flue gases was small, even
although with better firing methods the figure could be even
further reduced, it would probably be difficult to establish a
contravention of the section.
(f) New Building Byelaws re Heating and Cooking Appliances.
A new building byelaw, made under Section 24 of the Clean
Air Act, has been in force in this district from the 1st Septem
ber, 1957. It requires that new dwellings should be provided
with heating and cooking appliances which are suitably designed
for burning gas, electricity, oil or solid smokeless fuel.
(g) Pollution from Road Vehicles.
Although the Council have no statutory powers to deal with
the emission of smoke or fumes from road vehicles any cases
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