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| one publication added to basket [246935] |
Bioconcentration of the anionic surfactant linear alkylbenzene sulfonate (LAS) in the marine shrimp Palaemonetes varians: a radiotracer study
Renaud, F; Warnau, M; Oberhansli, F; Teyssie, L; Temara, A.; Rouleau, C; Metian, M (2014). Bioconcentration of the anionic surfactant linear alkylbenzene sulfonate (LAS) in the marine shrimp Palaemonetes varians: a radiotracer study. Mar. Pollut. Bull. 85(1): 244-247. dx.doi.org/10.1016/j.marpolbul.2014.06.023
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, meer
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| Author keywords |
Detergent; Waterborne contaminant; Radiotracer; Autoradiography;Accumulation |
| Auteurs | | Top |
- Renaud, F
- Warnau, M
- Oberhansli, F
- Teyssie, L
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- Temara, A., meer
- Rouleau, C
- Metian, M
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| Abstract |
Uptake and depuration kinetics of dissolved [14C]C12-6-linear alkylbenzene sulfonate (LAS) were determined in the shrimp Palaemonetes varians using environmentally relevant exposure concentration. The shrimp concentrated LAS from seawater with a mean BCF value of 120 L kg-1 after a 7-day exposure. Uptake biokinetics were best described by a saturation model, with an estimated BCFss, of 159 ± 34 L kg-1, reached after 11.5 days. Shrimp weight influenced significantly BCF value with smaller individuals presenting higher affinity to LAS. To the light of a whole body autoradiography, major accumulation of LAS occurred in the cephalothorax circulatory system (gills, heart, hepatopancreas) and ocular peduncle, but not in the flesh, limiting potential transfer to human consumers. LAS depuration rate constant value of the shrimp was 1.18 ± 0.08 d-1 leading to less than 1% of remaining LAS in its tissues after 8 days of depuration. |
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