§ Mr. Simon HughesTo ask the Secretary of State for Health what the committed effective dose to children in the terrestrial critical group will be for each year of discharge if the proposed liquid and gaseous radioactive discharges from BNFL's Sellafield installation are granted, and whether any children within that critical group will be exposed to doses exceeding the latest National Radiological Protection board's dose constraints of 0.3 mSv.
§ Mr. JackI have been asked to reply.
The estimated committed effective dose to children in the terrestrial critical group from liquid and gaseous radioactive discharges from Sellafield at the proposed authorised discharge limits is 239 uSv—microsievert—per year. This dose, calculated on the basis of pessimistic assumptions, is below the National Radiological Protection Board's recommended annual dose constraint of 300 uSv in respect of discharges from new plant.