Examination of rare earth element concentration patterns in freshwater fish tissues

被引：84

作者：

Mayfield, David B. ^{[1
]}

Fairbrother, Anne ^{[2
]}

机构：

[1] Gradient, Seattle, WA 98101 USA

[2] Exponent, Bellevue, WA 98007 USA

来源：

CHEMOSPHERE | 2015年 / 120卷

关键词：

Rare earth elements; Lanthanide; Bioaccumulation; Freshwater fish; Metals; Risk assessment; EXPOSURE CONCENTRATION; INVERSE RELATIONSHIP; LANTHANUM; TOXICITY; MICROCONTAMINANT; BIOAVAILABILITY; ACCUMULATION; EMBRYOS; METALS; CERIUM;

D O I：

10.1016/j.chemosphere.2014.06.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Rare earth elements (REEs or lanthanides) were measured in ten freshwater fish species from a reservoir in Washington State (United States). The REE distribution patterns were examined within fillet and whole body tissues for three size classes. Total concentrations (TREE) ranged from 0.014 to 3.0 mg kg(-1) (dry weight) and averaged 0.243 mg kg(-1) (dry weight). Tissue concentration patterns indicated that REEs accumulated to a greater extent in organs, viscera, and bone compared to muscle (fillet) tissues. Benthic feeding species (exposed to sediments) exhibited greater concentrations of REEs than pelagic omnivorous or piscivorous fish species. Decreasing REE concentrations were found with increasing age, total length or weight for largescale and longnose suckers, smallmouth bass, and walleye. Concentration patterns in this system were consistent with natural conditions without anthropogenic sources of REEs. These data provide additional reference information with regard to the fate and transport of REEs in freshwater fish tissues in a large aquatic system. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：68 / 74

页数：7

共 35 条

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