§ Mr. Maginnisasked the Minister of Technology what is the present level of strontium 90 in Northern Ireland; and how this compares with the same period in 1966.
§ Dr. BrayI am glad to tell the House that preliminary measurements of the concentration of strontium 90 in rainwater at Aldergrove, Antrim, for the first quarter of 1967 show a fall of about 50 per cent. compared with the same period last year.