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During the year the contract with the Central Electricity Authority to undertake
rodent treatments at their Power Station in Townmead Road was varied, as improvements
effected demonstrated that visits could now safely be reduced by one half.
Two sewer treatments were carried out during the year on the lines agreed with the
Infestation Division of the Ministry of Agriculture, Fisheries and Pood
It is of interest to record that in a high proportion of the rat infestations
investigated the cause was found to be defective drains between interceptors and sewers
ATMOSPHERIC POLLUTION
During 19 57 atmospheric measurement stations continued to be maintained by
courtesy of the occupying firms, managements at sites selected after consultation with
experts from the Puel Research Station of the Department of Scientific and Industrial
Research
In April, it was considered desirable to effect changes in the siting, The
deposit gauges and lead peroxide instruments at Shell Wharf Messrs. Reckitt & Colman s
premises in Demorgan Road and Messrs Manbre & Garton s factory in Rannoch Road had
been sited in areas where it was known that atmospheric pollution problems were
greatest None of the recordings obtained from these sources therefore, was repre
sentative of the Borough as a whole. The instruments at the De Morgan Road site were
moved accordingly to Queen s Club grounds, a site almost in the centre of the Borough
and immediately adjoining the proposed Smoke Control Area No 1