Copper, Zinc and Lead Enrichments in Sediments from Guacanayabo Gulf, Cuba, and Its Bioaccumulation in Oysters, Crassostrea rhizophorae

被引：0
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作者：
O. Díaz Rizo
S. Olivares Reumont
J. Viguri Fuente
O. Díaz Arado
N. López Pino
K. D’Alessandro Rodríguez
D. de la Rosa Medero
A. Gelen Rudnikas
G. Arencibia Carballo
机构：
[1] Instituto Superior de Tecnologías y Ciencias Aplicadas,
[2] Universidad de Cantabria,undefined
[3] Centro de Investigaciones Pesqueras,undefined
来源：
Bulletin of Environmental Contamination and Toxicology | 2010年 / 84卷
关键词：
Heavy metals; Oysters; Sediments; Guacanayabo Gulf;
D O I：
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中图分类号：
学科分类号：
摘要：
Levels of iron, copper, zinc and lead were determined in sediments and soft tissue of the oyster Crassostrea rhizophorae collected from Guacanayabo Gulf, Cuba. Metal-to-Iron ratio in sediments shows an average enrichment for Cu (5,1), Pb (11,7) and Zn (1,3) in the last 20 years. Metal concentrations found in soft tissue of C. rhizophorae are site dependent. The average biota-sediment accumulation factors (BSAFs) obtained for Fe, Cu and Pb are less than unity in all cases, indicating that only a little fraction of Cu and Pb in the sediments is bioavailable, independently of their enrichments. Zinc has an average BSAF value of 2.4 and may represent a serious impact in the area. The concentrations of zinc and copper in some of the oysters are above typical public health recommended limits.
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页码：136 / 140
页数：4
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