§ Mr. Llew SmithTo ask the Secretary of State for Health what studies have been conducted by her Department into the health effects of Krypton-85.
§ Mr. SackvilleAssessments of the dose to a local population resulting from a release of the currently allowed does limit of Krypton-85 have been made by the National Radiological Protection Board, the Ministry of Agriculture, Fisheries and Food and Her Majesty's inspectorate of pollution. I am advised that the dose at this level would be of the order of one microSievert per annum and may be regarded as negligible in relation to the average natural background dose from all types of natural radiation of 2,200 microSievert per annum.