§ 81 and 82. Mr. G. M. Thomson
asked the Parliamentary Secretary for Science (1) what was the average strontium level in fresh milk in the United Kingdom in 1959; and what was the average strontium level in fresh milk at the latest convenient date this year;
(2) what increases in strontium levels have been recorded in the United Kingdom during the present year, following the 1962 series of nuclear tests.
§ Mr. Denzil Freeth
The average level in milk for 1959 was 9.8 units (picocuries of strontium 90 per gram of calcium). The corresponding figure for the 12 months to the end of September, 1962, was 9.6 units. More recent figures will be published in detail in about two months. They are likely to show that the 12-month average increased by about one-third between September, 1962, and March, 1963.