Emissions from Sellafield and activities in soil

The discharges of radioactivity from the Windscale piles and other installations at Sellafield remain a matter of concern, though 30 or 40 years have elapsed since most of the emissions occurred. New data on emissions and activities in soil have become available in the past few years. They are reviewed, together with the older data, with particular reference to the emissions of irradiated uranium oxide from the Windscale piles, the releases in the 1957 accident, and the aerial emissions from the re-processing plant.