HC Deb 05 December 1988 vol 143 cc49-50W
Mr. Butler

To ask the Secretary of State for Energy (1) what was the discharge of total alpha activity to the sea from Sellafield in (i) 1974 and (ii) the latest available year;

(2) what was the discharge of total beta activity to the sea from Sellafield in (i) 1974 and (ii) the latest available year.

Mr. Michael Spicer

Discharges to sea from Sellafield in 1974 and 1987 (the latest available year) were as follows:

TBq
1974 1987
Alpha 170 2.2
Beta 7,200 89

Further reductions in discharge levels are expected in the early 1990s upon completion of BNFL's effluent treatment plant investment programme.