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The variability of Chernobyl Cs retention in the water column of lakes in the English Lake District, two years and four years after deposition

TitleThe variability of Chernobyl Cs retention in the water column of lakes in the English Lake District, two years and four years after deposition
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication1993
AuthorsSpezzano, Pasquale, Hilton J., Lishman J.P., and Carrick T.R.
JournalJournal of Environmental Radioactivity
Volume19
Pagination213-232
ISSN0265931X
Keywordsarticle, caesium retention, cesium, Chernobyl accident, Chernobyl fallout, clay, Clay minerals, England, English Lake District, Environmental radioactivity, fallout, lake, Lake District, lake water contamination, Lakes, Nuclear reactor accidents, priority journal, Radioactive materials, Radiocesium activity, radionuclide remobilisation, sediment, Soil, UK, United kingdom, Water columns, water contamination, Water pollution
Abstract

Radiocaesium activity was measured in 26 lakes in the English Lake District (North-West England) in 1988 and in 1990. Several lakes showed measurable Cs activity, even though calculations suggested that, by these times, levels of Chernobyl fallout should have been undetectable in almost all lakes. Several factors, including negative correlations between Cs activity levels in the water column and illitic clay mineral content in the sediment, point to remobilisation from fibrous peat soils (peat bogs) within the catchment as the source of residual Cs activity in the water column. Loss rates of up to 2.2% of the catchment inventory per annum were observed. Extrapolation of these arguments suggests that all lakes in catchments containing soils poor in clay minerals are likely to receive significant radiocaesium contributions from the catchment, considerably increasing the recovery time after an accidental input. © 1993.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0027336507&doi=10.1016%2f0265-931X%2893%2990004-Q&partnerID=40&md5=75d2c4e910e7dbab1aeb94ec8ebd8c20
DOI10.1016/0265-931X(93)90004-Q
Citation KeySpezzano1993213