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51.
Mr. Gould
asked the Secretary of State for the Environment whether he will seek to introduce effective statutory controls over the amount of sulphur dioxide emitted by oil refineries and oil-burning power stations.
Mr. Denis Howell
The system of control for oil refineries and oil-burning power stations was explained in the answer to my hon. Friend on 28th November.—[Vol. 882, c. 247.] I am satisfied as to the effectiveness of these measures.