§ Mr. D. E. Thomas
asked the Secretary of State for the Environment if he will update to calendar years 1983 and 1984 the information on discharges of radionuclides to sea from the Sellafield site given in National Radiological Protection Board Paper R171; and what proportion of the plutonium contained in the discharges made to sea from the Sellafield site up to 31 December 1984 is estimated to have originated in the magnox reactors of the Central Electricity Generating Board and South of Scotland Electricity Board.
§ Mr. Waldegrave
[pursuant to his reply, 3 July 1985: The information requested for 1983 is given in the table. The equivalent figures for 1984 are not yet available.
Figures for the proportion of liquid discharges from the Sellafield site from various sources were given in paragraphs 3.9 and 3.10 of the Black report, a copy of which is in the Library of the House. About 70 per cent. of the total alpha discharge is attributable to storage and 220W reprocessing of magnox fuel from the Central Electricity Generating Board and South of Scotland Electricity Board nuclear power stations.
Bq discharged in 1983 Sr 90 Zr/Nb 95 Ru 106 Cs 134 Cs 137 2.04 E14 5.96 E14 5.53 E14 8.9 E13 1.2 E15 Ce 144 Pu 238 Pu 239 Pu 241 Am 241 2.4 E13 2.9 E12 8.2 E12 3.3 E14 2.2 E12