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37
NOTICES SERVED.
Informal Notices 2,182
Statutory Notices 506
Section 36, Public Health Act, 1875 38
Section 94, Public Health Act, 1875 334
Section 41, Public Health Act, 1875 4 506
Section 5, Infectious Disease (Prevention) Act,
1890 1
Section 3, Housing Act, 1925 129;
SMOKE ABATEMENT.
During the year 196 observations were made of factory
chimneys in the district and in 70 instances there were emissions
of black smoke in excess of the permissible period of 2 minutes in
each 30-minute observation.
Most of the offences occurred at a factory where the processes
have since been electrified, with a consequent decrease in black
smoke emission from the chimney.
The question of "grit" discharge from the super-power
station at Creeksmouth has received attention and the station
kept under observation. A considerable amount of grit escapes
into the atmosphere, causing nuisance to workmen in the locality,
and would undoubtedly be a serious matter if the station was
situated other than in its present position of isolation.
The demand for higher and higher efficiency in steam raising
installations, with consequent increasing popularity of high
temperature air pre-heating and the rapid increase in the capacity
of boiler units designed for a high rate of evaporation per square
foot of heating surface have brought about many new problems,
the most serious of which from the public health point of view are
the discharge of sulphur fumes and very fine grit from the chimneys
of modern electric power houses where there is a concentration of a
large amount of power in a relatively small space. How serious
these discharges are can best be gauged when it is realised that
the modern furnace is designed to burn any class of fuel, and that
the average fuel contains 2 per cent. of sulphur and 14 per cent
ash.