HC Deb 20 July 1967 vol 750 c312W
67. Sir J. Langford-Holt

asked the Minister of Technology what have been the levels of radioactive fall-out in the United Kingdom over the last three years; and what he estimates this level to be as a result of the recent Chinese H-bomb explosion.

Mr. Benn

Long lived radioactive fallout was at a maximum in 1963. In succeeding years the levels have fallen by approximately 25 per cent, 60 per cent. and 40 per cent. of the previous year's figures.

No fall-out attributable to the present Chinese tests has been detected in the United Kingdom up to the present.