asked the Secretary of State for Employment what studies his Department has made of information regarding the application of organochlorine pesticides to timber in roof spaces and other enclosed situations; and what action his Department has taken as a result.

The Health and Safety Executive, as a participant in the pesticides safety precautions scheme, studies all relevant information when considering a pesticide for clearance. Clearances are reviewed in the light of any significant new information. As a result, the clearance for use of certain organochlorine pesticides has been withdrawn and the use of others severely restricted.