§ Mr. Sillarsasked the Secretary of State for the Environment what progress is being made in research work, sponsored 139W fully or partly by his Department, which is directed towards the elimination of river pollution through mineral and other discharges from disused colliery workings.
§ Mr. Graham PageFollowing open discussion between my Department, the Department of Trade and Industry and the National Coal Board the question of what research will be required is under consideration.