Trophic dilution of rare earth elements along the food chain of the Seine estuary (France).
Mar Pollut Bull
; 206: 116671, 2024 Sep.
Article
em En
| MEDLINE
| ID: mdl-39024907
ABSTRACT
Society's interest in rare earth elements (REEs) and their increasing use in many fields is leading to enrichments in aquatic environments, such as estuaries. This study of the Seine estuary assessed the distribution of REEs along the food web, including different species from 5 phyla representing different trophic levels. Total REE concentrations, which were higher in algae, mollusks, crustaceans and annelids (4.85-156; 1.59-4.08; 2.48 ± 1.80 and 0.14 ± 0.11 µg/g dw, respectively) than in vertebrates (0.03-0.15 µg/g dw), correlated with δ15N indicated a trophic dilution. REE contributions in the studied species were higher for light REEs than for heavy and medium REEs. Positives anomalies for Eu, Gd, Tb and Lu were highlighted particularly in vertebrates, possibly due to species-dependent bioaccumulation/detoxification or related to anthropogenic inputs. The calculated BAF and BSAF indicated an important partitioning of REEs in organisms compared to the dissolved phase and a limited transfer from sediment to organisms.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
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Monitoramento Ambiental
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Estuários
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Cadeia Alimentar
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Metais Terras Raras
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2024
Tipo de documento:
Article