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

Violeta Hansen; Anders Mosbech; Frank Farsø Riget; Jens  Søgaard-Hansen; Peter Bjerregaard; Rune Dietz; Christian Sonne; Gert Asmund; Niels  Bøknæs; Maia Olsen; Kim Gustavson; David Martin Boertmann; Sandra Drewes Fabricius; Daniel Spelling Clausen; Alexander Serban  Hansen

doi:10.1016/j.scitotenv.2021.150508

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

Violeta Hansen^*, Anders Mosbech, Frank Farsø Riget, Jens Søgaard-Hansen, Peter Bjerregaard, Rune Dietz, Christian Sonne, Gert Asmund, Niels Bøknæs, Maia Olsen, Kim Gustavson, David Martin Boertmann, Sandra Drewes Fabricius, Daniel Spelling Clausen, Alexander Serban Hansen

^*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

11 Citationer (Scopus)

80 Downloads (Pure)

Abstract

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< 0.001). 210Po concentrations ranged from 0.02 Bq kg-1, w.w. in Greenland halibut (Reinhardtius hippoglossoides) muscle to 78 Bq kg-1, w.w. and 202 Bq kg-1, w.w. in ringed seal muscle and kidneys, respectively. 210Po concentration ratio for edible parts increases in the order bladderwrack (Fucus Vesiculosus), northern shrimp (Pandalus borealis), blue mussels, and from fish species to ringed seal and polar bear. 210Po distribution in fish, ringed seal, and polar bear follows a general pattern, the lowest concentrations were in muscle, and the highest concentrations were in the organs involved in metabolism. The derived 210Po annual absorbed dose in edible parts of studied marine organisms are several orders of magnitude lower than the recommended dose rate screening value of 10 µGy h-1. Effective doses from intake of 210Po to Greenland average children (1.4 mSv y-1), and high seafood and marine mammal consumers (2 mSv y-1 for adults and 3.6 mSv y-1 for children) are higher than the world average annual effective dose due to ingestion of naturally occurring radionuclides.

Originalsprog	Engelsk
Artikelnummer	150508
Tidsskrift	Science of the Total Environment
Vol/bind	806
Nummer	Part 1
Antal sider	13
ISSN	0048-9697
DOI	https://doi.org/10.1016/j.scitotenv.2021.150508
Status	Udgivet - feb. 2022

Adgang til dokumentet

10.1016/j.scitotenv.2021.150508Licens: CC BY

Hansen et al., 2021 publishedForlagets udgivne version, 1,66 MBLicens: CC BY

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https://www.sciencedirect.com/science/article/pii/S0048969721055856?via%3Dihub#!

Citationsformater

Hansen, V., Mosbech, A., Riget, F. F., Søgaard-Hansen, J., Bjerregaard, P., Dietz, R., Sonne, C., Asmund, G., Bøknæs, N., Olsen, M., Gustavson, K., Boertmann, D. M., Fabricius, S. D., Clausen, D. S., & Hansen, A. S. (2022). Background ²¹⁰Po activity concentrations in Greenland marine biota and dose assessment. Science of the Total Environment, 806(Part 1), Artikel 150508. https://doi.org/10.1016/j.scitotenv.2021.150508

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title = "Background 210Po activity concentrations in Greenland marine biota and dose assessment",

abstract = "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< 0.001). 210Po concentrations ranged from 0.02 Bq kg-1, w.w. in Greenland halibut (Reinhardtius hippoglossoides) muscle to 78 Bq kg-1, w.w. and 202 Bq kg-1, w.w. in ringed seal muscle and kidneys, respectively. 210Po concentration ratio for edible parts increases in the order bladderwrack (Fucus Vesiculosus), northern shrimp (Pandalus borealis), blue mussels, and from fish species to ringed seal and polar bear. 210Po distribution in fish, ringed seal, and polar bear follows a general pattern, the lowest concentrations were in muscle, and the highest concentrations were in the organs involved in metabolism. The derived 210Po annual absorbed dose in edible parts of studied marine organisms are several orders of magnitude lower than the recommended dose rate screening value of 10 µGy h-1. Effective doses from intake of 210Po to Greenland average children (1.4 mSv y-1), and high seafood and marine mammal consumers (2 mSv y-1 for adults and 3.6 mSv y-1 for children) are higher than the world average annual effective dose due to ingestion of naturally occurring radionuclides.",

keywords = "natural radioactivity, concentration ratio, seafood and marine mammals, absorbed dose, ingestion dose, Arctic",

author = "Violeta Hansen and Anders Mosbech and Riget, {Frank Fars{\o}} and Jens S{\o}gaard-Hansen and Peter Bjerregaard and Rune Dietz and Christian Sonne and Gert Asmund and Niels B{\o}kn{\ae}s and Maia Olsen and Kim Gustavson and Boertmann, {David Martin} and Fabricius, {Sandra Drewes} and Clausen, {Daniel Spelling} and Hansen, {Alexander Serban}",

year = "2022",

month = feb,

doi = "10.1016/j.scitotenv.2021.150508",

language = "English",

volume = "806",

journal = "Science of the Total Environment",

issn = "0048-9697",

publisher = "Elsevier B.V.",

number = "Part 1",

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Hansen, V, Mosbech, A, Riget, FF, Søgaard-Hansen, J, Bjerregaard, P, Dietz, R , Sonne, C , Asmund, G, Bøknæs, N, Olsen, M, Gustavson, K , Boertmann, DM , Fabricius, SD , Clausen, DS & Hansen, AS 2022, 'Background ²¹⁰Po activity concentrations in Greenland marine biota and dose assessment', Science of the Total Environment, bind 806, nr. Part 1, 150508. https://doi.org/10.1016/j.scitotenv.2021.150508

TY - JOUR

T1 - Background 210Po activity concentrations in Greenland marine biota and dose assessment

AU - Hansen, Violeta

AU - Mosbech, Anders

AU - Riget, Frank Farsø

AU - Søgaard-Hansen, Jens

AU - Bjerregaard, Peter

AU - Dietz, Rune

AU - Sonne, Christian

AU - Asmund, Gert

AU - Bøknæs, Niels

AU - Olsen, Maia

AU - Gustavson, Kim

AU - Boertmann, David Martin

AU - Fabricius, Sandra Drewes

AU - Clausen, Daniel Spelling

AU - Hansen, Alexander Serban

PY - 2022/2

Y1 - 2022/2

N2 - 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< 0.001). 210Po concentrations ranged from 0.02 Bq kg-1, w.w. in Greenland halibut (Reinhardtius hippoglossoides) muscle to 78 Bq kg-1, w.w. and 202 Bq kg-1, w.w. in ringed seal muscle and kidneys, respectively. 210Po concentration ratio for edible parts increases in the order bladderwrack (Fucus Vesiculosus), northern shrimp (Pandalus borealis), blue mussels, and from fish species to ringed seal and polar bear. 210Po distribution in fish, ringed seal, and polar bear follows a general pattern, the lowest concentrations were in muscle, and the highest concentrations were in the organs involved in metabolism. The derived 210Po annual absorbed dose in edible parts of studied marine organisms are several orders of magnitude lower than the recommended dose rate screening value of 10 µGy h-1. Effective doses from intake of 210Po to Greenland average children (1.4 mSv y-1), and high seafood and marine mammal consumers (2 mSv y-1 for adults and 3.6 mSv y-1 for children) are higher than the world average annual effective dose due to ingestion of naturally occurring radionuclides.

AB - 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< 0.001). 210Po concentrations ranged from 0.02 Bq kg-1, w.w. in Greenland halibut (Reinhardtius hippoglossoides) muscle to 78 Bq kg-1, w.w. and 202 Bq kg-1, w.w. in ringed seal muscle and kidneys, respectively. 210Po concentration ratio for edible parts increases in the order bladderwrack (Fucus Vesiculosus), northern shrimp (Pandalus borealis), blue mussels, and from fish species to ringed seal and polar bear. 210Po distribution in fish, ringed seal, and polar bear follows a general pattern, the lowest concentrations were in muscle, and the highest concentrations were in the organs involved in metabolism. The derived 210Po annual absorbed dose in edible parts of studied marine organisms are several orders of magnitude lower than the recommended dose rate screening value of 10 µGy h-1. Effective doses from intake of 210Po to Greenland average children (1.4 mSv y-1), and high seafood and marine mammal consumers (2 mSv y-1 for adults and 3.6 mSv y-1 for children) are higher than the world average annual effective dose due to ingestion of naturally occurring radionuclides.

KW - natural radioactivity, concentration ratio, seafood and marine mammals, absorbed dose, ingestion dose, Arctic

UR - https://www.sciencedirect.com/science/article/pii/S0048969721055856?via%3Dihub#!

U2 - 10.1016/j.scitotenv.2021.150508

DO - 10.1016/j.scitotenv.2021.150508

M3 - Journal article

C2 - 34844309

SN - 0048-9697

VL - 806

JO - Science of the Total Environment

JF - Science of the Total Environment

IS - Part 1

M1 - 150508

ER -