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43
In addition to the deposit gauges and lead peroxide candles which are sited
at three positions in the Borough, the results from which are recorded monthly
as shown in the above table, the Council has installed volumetric apparatus at
the Town Hall and the Treatment Centre, Seven Sisters Road, respectively. The
concentration of smoke and sulphur-dioxide in the atmosphere is recorded daily
and such information is not only advantageous locally, but the daily findings
are forwarded to the Fuel Research Station for collation and comparison with
other Metropolitan Boroughs, in order that an overall picture may be obtained
for the whole of London.
The measurement of smoke and sulphur-dioxide, respectively, is given in the
following table.