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Measurement
For the purposes of measuring the degree of certain aspects of atmospheric pollution, various
gauges are in operation in various parts of the Borough.
Daily readings of smoke and sulphur dioxide are taken at four places where standard
Volumetric equipment is in operation and each month the contents of the three standard Deposit
gauges and the one 4-point Directional gauge are reported upon by the Analyst retained by
the Thames-side Joint Committee for the abatement of Atmospheric Pollution, upon which
Committee two members of this Council serve.
Apart from supplying local information e.g. in the case of the Deposit Gauges, the amount
of dust from cement works, the results are used in Regional and National Surveys.
Chimney Heights
Chimneys provided for large furnaces are required to satisfy the local authority and the
Clean Air Act 1968 as respects to the height of the chimney. These requirements are quite
apart from any planning or other permission needed or any approval of the furnace or its ancillary
plant, including any systems to clean the flue gases.
Discussions with consulting engineers and their contractors, the assessment of the technical
detail and the use of published recommendations has in all cases produced an agreed height that
can be approved allowing proper dispersal of flue gases.
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