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137
The survey of three proposed smoke control areas (Nos. 10;
11 and 12) which was discontinued in 1968 because of Council
policy was resumed and completed during 1969. Smoke Control
Orders in respect of these areas were made by the Council and
submitted to the Minister of Housing and Local Government for
confirmation at the turn of the year.

A survey of three further areas (No. 13, part Bickley Ward;
No. 14, part Farnborough Ward and part Hayes and Keston Ward;
and No. 15, part Manor House Ward) which it is hoped to bring
under smoke control in 1971 was commenced.
No contravention of the requirements of the various Smoke
Control Orders was reported or detected during the year.
Section 9 of the Clean Air Act, 1968, which came into
operation on 1st April, 1969, now makes the acquisition and sale
of unauthorised fuel in a smoke control area an offence under the
Act.
A tmospheric Pollution
Although the Borough does not suffer very much from
industrial pollution a few complaints were received of smoke and
grit from industrial sources and these were fully investigated and
appropriate measures taken.
A number of applications for approval to the height of
chimney stacks were received and dealt with under the provisions
of the Clean Air Act, 1968, during the year. The applications
related mainly to the chimneys of oil fired central heating boiler
plants at schools and similar institutional buildings.
The instruments for determining the concentration in the
atmosphere of the two main pollutants, i.e. smoke and sulphur
dioxide continue to be maintained at four sites by the Public Health
Inspectorate and the recorded measurements are forwarded each
month to the Minstry of Technology (Warren Spring Laboratory).
Eleven premises within the Borough are licensed by the
Ministry of Housing and Local Government for the storage and use
of radio-active materials.