Trace Element Contamination in Tissues of Four Bird Species from the Rift Valley Region, Ethiopia

被引：0

作者：

Yared Beyene Yohannes

Yoshinori Ikenaka

Shouta M. M. Nakayama

Hazuki Mizukawa

Mayumi Ishizuka

机构：

[1] Hokkaido University,Laboratory of Toxicology, Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine

[2] University of Gondar,Department of Chemistry, College of Natural and Computational Sciences

[3] Hokkaido University,Department of Environmental Veterinary Sciences, Graduate School of Veterinary Medicine

[4] North-West University,Water Research Group, Unit for Environmental Sciences and Management

来源：

Bulletin of Environmental Contamination and Toxicology | 2017年 / 98卷

关键词：

Bird; Tissue; Trace element; Ecological risk assessment; Ethiopian rift valley;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Concentrations of ten trace elements (Hg, As, Cd, Pb, Co, Cr, Cu, Ni, Se and Zn) were determined in different tissues (liver, kidney, muscle, heart and brain) of African sacred ibis (Threskiornis aethiopicus), Hamerkop (Scopus umbretta), marabou stork (Leptoptilos crumeniferus) and great white pelican (Pelecanus onocrotalus) inhabiting the Ethiopian Rift Valley region. There were differences in trace element patterns among the bird species. Significantly (p < 0.05) higher concentrations of Cd (5.53 µg/g dw ± 2.94) in kidney and Hg (0.75 µg/g ww ± 0.30) in liver were observed in the great white pelican compared to the other species, and liver concentrations of these two elements showed positive correlations with trophic level. Concentrations of toxic elements (As, Cd, Pb and Hg) in liver were below their respective toxicological thresholds, indicating that the data may provide baseline information for future studies.

引用

页码：172 / 177

页数：5