§ Mr. Johnasked the Secretary of State for Wales if he will place in the Library of the House a copy of the Press statement made by the Welsh Office on 25th June 1973, regarding the results of tests for PCB in milk from the areas of Maendy and Brofiskin.
§ Mr. Peter ThomasThere was no formal Press statement. Information given by my Office on 25th June related to further analyses undertaken by the laboratory of the Government Chemist, subsequent to the answer I gave my hon. Friend the Member for Barry (Mr. Gower) on 15th June, when I reported that tests down to a limit of 0.02 parts per million had failed to detect PCBs. The further analysis of milk samples from Maendy and Brofiskin detected PCBs below this limit, the highest level found in Maendy milk being 0.015 parts per million and in Brofiskin milk 0.003 parts per million. I am advised that PCBs at this level are of no public health significance.