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no complaints have been received about grit emission for a
long time it is considered that two furnaces in the District
do not comply with the Act in this respect and negotiations
are taking place at the moment withaview to grit arresting
plant being installed at both of them.
(f) New Building Byelaw re Heating and Cooking Appliances.
A new building byelaw made under Section 24 of the
Clean Air Act has been in force in the District from the
1st September 1957. It requires that new dwellings should
be provided with heating or 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 which are observed are drawn to the attention of the
owners of the vehicles and in most cases a co operative
attitude is met with
If local authorities were given powers to deal with
this aspect of clean air an improvement would soon be
effected
(h) Measurement of Atmospheric Pollution
Three stations for the measurement of atmospheric
pollution by the daily volumetric method are in use The
pollutants measured are smoke and sulphur dioxide.
An electric reflectometer is used for assessing smoke
stains and the figures obtained are therefore far more
accurate than if obtained from visual comparison with a
shade card
The measuring station at William Byrd School is situated
in fairly close proximity to the Bath Road and London
Airport but is a considerable distance away from any source
of smoke particularly in a southerly and south westerly
direction; the station at Coldharbour Lane is in the cen
tre of the town where it is likely to receive the full
effect of industrial pollution and the station at Grange
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