§ Dr. David Clarkasked the Secretary of State for Agriculture, Fisheries and Food what research has been undertaken or commissioned by his Department into the bioaccumulation of metals in shellfish in estuaries as a result of acid deposition; and what were the findings.
§ Mr. Gummer[pursuant to his reply, 6 May 1987]: The research programme of my Department covers the bioaccumulation of metals in fish and shellfish from all sources. Present levels are generally lower than those found previously.