NDLI: Bioconcentration of Ag, Cd, Co, Mn and Zn in the Mangrove Oyster (Crassostrea gasar) and Preliminary Human Health Risk Assessment: A Radiotracer Study

Content Provider	Springer Nature Link
Author	Kuranchie Mensah, Harriet Teyssié, Jean Louis Oberhänsli, François Tumi, Yutthana Pouil, Simon Warnau, Michel Metian, Marc
Copyright Year	2016
Abstract	Bioaccumulation kinetics of five dissolved metals were determined in the mangrove oyster Crassostrea gasar, using corresponding radiotracers (54Mn, 57Co, 65Zn, 109Cd and 110mAg). Additionally, their bioaccessibility to human consumers was estimated. Results indicated that over a 14-day exposure 54Mn and 57Co were linearly concentrated in oysters whereas 109Cd, 65Zn and 110mAg were starting to saturate (steady-state not reached). Whole-body concentration factors at 14 days (CF14d in toto) ranged from 187 ± 65 to 629 ± 179 with the lowest bioconcentration capacity for Co and the highest for Ag. Depuration kinetics were best described by a double-exponential model with associated biological half-lives ranging from 26 days (Ag) to almost 8 months (Zn and Cd). Bioaccessible fraction of the studied elements was estimated using in vitro digestions, which suggested that oysters consumed seasoned with lemon enhanced the accessibility of Cd, Mn and Zn to human consumers, but not Ag and Co.
Starting Page	413
Ending Page	417
Page Count	5
File Format	PDF
ISSN	00074861
Journal	Bulletin of Environmental Contamination and Toxicology
Volume Number	97
Issue Number	3
e-ISSN	14320800
Language	English
Publisher	Springer US
Publisher Date	2016-05-19
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metals Bioaccumulation Tropical African bivalve Seafood safety Pollution Environmental Health Ecotoxicology Soil Science & Conservation Environmental Chemistry Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Pollution Medicine Toxicology

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