Background 210Po activity concentrations in Greenland marine biota and dose assessment

Polonium-210 (210Po) is a radionuclide sentinel as it bioaccumulates in marine organisms, thereby being the main contributor to committed dietary doses in seafood consumers. Although seafood and marine mammals are an important part of the traditional Inuit diet, there is a general lack of informatio...

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Published in:The Science of the total environment 2022-02, Vol.806, p.150508-150508, Article 150508
Main Authors: Hansen, Violeta, Mosbech, Anders, Rigét, Frank Farsø, Søgaard-Hansen, Jens, Bjerregaard, Peter, Dietz, Rune, Sonne, Christian, Asmund, Gert, Bøknæs, Niels, Olsen, Maia, Gustavson, Kim, Boertmann, David, Fabricius, Sandra Drewes, Clausen, Daniel Spelling, Hansen, Alexander Serban
Format: Article
Language:English
Subjects:
Absorbed dose
Arctic
bioaccumulation
Concentration ratio
diet
environment
fish
food chain
Fucus vesiculosus
Greenland
humans
ingestion
Ingestion dose
Inuit
metabolism
muscles
Mytilus edulis
Natural radioactivity
Pandalus borealis
Pusa hispida
Reinhardtius hippoglossoides
Seafood and marine mammals
seafoods
seals
Ursus maritimus
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Summary:Polonium-210 (210Po) is a radionuclide sentinel as it bioaccumulates in marine organisms, thereby being the main contributor to committed dietary doses in seafood consumers. Although seafood and marine mammals are an important part of the traditional Inuit diet, there is a general lack of information on the 210Po concentrations in the Greenlandic marine food chain leading to the human consumer. Here, we determine background 210Po concentrations in edible parts of different marine organisms from Greenland and provide a dose assessment. Blue mussels (Mytilus edulis), organs of ringed seal (Pusa hispida) and polar bear (Ursus maritimus) displayed significantly elevated 210Po concentrations in respect to all other studied organisms (p 
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2021.150508