The Assessment of the Principal Public Radiation Exposure From, and the Resulting Control of, Discharges of Aqueous Radioactive Waste from the United Kingdom Atomic Energy Authority Factory at Windscale, Cumberland

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Abstract
The discharge of aqueous radioactive effluent to the sea from the United Kingdom Atomic Energy Authority's Windscale factory is limited by the contamination of Porphyra seaweed used for the manufacture of the foodstuff “laverbread” in South Wales. Data gathered for the estimation of the radiation dose received by consumers of this food, and estimates of the annual dose to the gastro-intestinal tract of adult consumers eating at the highest observed rate, are presented for the years since 1959. In particular, the production, distribution and consumption of laverbread are discussed in relation to their effect on the interpretation of radioassay results from the seaweed raw material collected in the vicinity of the Windscale discharge point.