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38
Smoke Measuring Station
Public Health Department, Lavender Hill.
Average Concentration of Smoke and Sulphur Dioxide
in Microgrammes per Cubic Metre of Air.
Notification of Installation of Furnaces.
Notification is required under Section 3 of the Clean Air Act, 1956,
of the installation of any furnace with a heating capacity of 55,00
B.T.U's or more per hour. The Section does not generally apply to
furnaces designed solely or mainly for use for domestic purposes. The
purpose of the Section is to see that any new furnaces installed shall
be, so far as is practicable, capable of being operated without emitting
smoke. One such notification was received during the year.
Exemption of Premises engaged in Investigation and Research.
Section 21 of the Clean Air Act, 1956, provides for firms engaged
in research with regard to air pollution and the efficiency of furnaces
generally to apply for exemption in the event of emission of smoke
above the prescribed density.
One application for exemption under this Section was received,
and this was granted for one year. No untoward emissions were
observed.