View report page

42
SECTION H
DISEASES OF ANIMALS
Throughout the year, the Borough remained free from any
outbreak of notifiable disease, although there were numerous outbreaks
throughout the country which necessitated exercising the
utmost vigilance to see that no animals were moved into the
Borough from infected areas.
SECTION J
ATMOSPHERIC POLLUTION
There has been no major change in the siting or recording of
the three deposit gauge and seven lead peroxide stations and analyses
have been maintained throughout the year.
ESTIMATION OF ATMOSPHERIC SULPHUR BY THE
LEAD PEROXIDE METHOD
The monthly figures for each station for the years 1956 and
1957 are shown on page 43 and the 1957 figures are illustrated
graphically on page 44.
The station with the highest monthly figure—4.5—was Wesley
Road and that with the highest average figure—2.6—was Bashley
Road. The station with the lowest monthly figure—0.38—and with
the lowest average figure—1.1—was Acacia Road.
The average of all stations for the year was 1.9 which is below
that of the previous year.
DEPOSIT GAUGES
The monthly figures for each station are shown statistically on
page 45 and graphically on page 44.
The yearly average figure—15.55 tons/sq. mile—has fallen below
that of the previous year although the amount of combustible
material in the deposit has again increased by a small amount.
Once again the station with the greatest monthly deposit—
26.20 tons/sq. mile — and the greatest average deposit — 18.19
tons/sq. mile — was Bashley Road. The Kendal Avenue gauge
showed the lowest monthly deposit of 10.68 tons/sq. mile and the
lowest average deposit of 13.97 tons/sq. mile.