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TitleAerial measurement of radioxenon concentration off the west coast of Vancouver Island following the Fukushima reactor accident
AuthorSinclair, L E; Seywerd, H C J; Fortin, R; Carson, J M; Saull, P R B; Coyle, M J; Van Brabant, R A; Buckle, J L; Desjardins, S M; Hall, R M
SourceJournal of Environmental Radioactivity vol. 102, 2011 p. 1018-1023, (Open Access)
Alt SeriesEarth Sciences Sector, Contribution Series 20110080
PublisherElsevier BV
Mediapaper; on-line; digital
File formatpdf
ProvinceWestern offshore region
Subjectsenvironmental geology; marine geology; radioactivity; radioactive waste; marine environments
Illustrationsplots; graphs
ProgramCanadian Hazard Information Service, Canadian Hazard Information Service
AbstractIn response to the Fukushima nuclear reactor accident, on March 20th, 2011, Natural Resources Canada conducted aerial radiation surveys over water just off the west coast of Vancouver Island. Doseerate levels were found to be consistent with background radiation, however a clear signal due to 133Xe was observed. Methods to extract 133Xe count rates from the measured spectra, and to determine the corresponding 133Xe activity concentration, were developed. The measurements indicate that 133Xe concentrations on average lie in the range of 30e70 Bq/m3.