Journal ArticleDOI
Accumulation of cadmium by the American oyster, Crassostrea virginica
Gerald E. Zaroogian,Sue Cheer +1 more
TLDR
In this paper, the authors reported that oysters reared in seawater containing 0.005 p.p.m. accumulated up to 10.75 p.m in 40 weeks.Abstract:
CADMIUM is a major environmental pollutant potentially harmful to health, and if the sea becomes polluted with this metal there could be a reduction in extensive sources of food1. Seafoods constitute a source of cadmium in the human diet2 and in view of abundant evidence that shellfish accumulate trace metals3–6, it is important to investigate cadmium pollution. People have become ill from cadmium poisoning after ingesting foods containing concentrations of 13–15 µg g−1 (13–15 p.p.m., ref. 7). We now report that adult oysters reared in seawater containing 0.005 p.p.m. cadmium accumulated up to 10.75 p.p.m. in 40 weeks. This accumulation, plus cadmium naturally present, brought the concentration of cadmium to 13 p.p.m. in the soft tissue, which represents a potential health hazard if oysters constitute a major item of the diet.read more
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Journal ArticleDOI
Bioaccumulation of Cd, Se, and Zn in an estuarine oyster (Crassostrea rivularis) and a coastal oyster (Saccostrea glomerata)
Caihuan Ke,Wen-Xiong Wang +1 more
TL;DR: It is demonstrated that estuarine and coastal oysters differed in their strategies in accumulating a high metal concentration in their tissues, with metal CF the highest among different bivalve species studied so far.
Journal ArticleDOI
Steady-state model of biota sediment accumulation factor for metals in two marine bivalves
TL;DR: A potential significance of the metal-binding protein metallothionein is indicated, which results in relatively high binding of metal and resulting low depuration rates in marine bivalves.
Journal ArticleDOI
Influence of temperature and salinity on the uptake, distribution and depuration of mercury, cadmium and lead by the black-lip oyster Saccostrea echinata
G.R.W. Denton,C. Burdon-Jones +1 more
TL;DR: Accumulation rates of cadmium and lead in the majority of tissues examined were significantly greater in lowsalinity water at both temperatures, and lead was lost the most rapidly from oyster tissues, followed by mercury and then Cadmium.
Journal ArticleDOI
Bioaccumulation of cadmium in marine organisms.
TL;DR: Experimental studies designed to investigate the influence of factors which influence cadmium concentrations, such as regional differences, seasonal fluctuations and salinity in a filter feeding bivalve mollusk, the American oyster, demonstrate that an inducible Cadmium binding protein, similar to metallothiomein, is present in the oyster.
References
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Book
Cadmium in the environment
TL;DR: In this paper, a review on cadmium in the environment has been performed under a contract between the U.S. Environmental Protection Agency and the Department of Environmental Hygiene of the Karolinska Institute, Sweden.
Journal ArticleDOI
Cadmium as a factor in hypertension
TL;DR: Most human subjects dying from hypertensive complications showed in their kidneys either increased concentrations of cadmium or increased ratios of Cadmium to zinc, compared to subjects dying of a variety of other major diseases.
Journal ArticleDOI
Migration and redistribution of zinc and cadmium in marine estuarine system
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