Using mercury isotopes to understand the bioaccumulation of Hg in the subtropical Pearl River Estuary, South China

	Using mercury isotopes to understand the bioaccumulation of Hg in the subtropical Pearl River Estuary, South China
	Runsheng Yin; Xinbin Feng; Junjun Zhang; Ke Pan; Wenxiong Wang
	2016
发表期刊	Chemosphere
卷号	147 期号:1 页码:173-179
摘要	Coastal and estuarine regions are important areas of mercury pollution. Therefore, it is important to properly characterize the sources and bioaccumulation processes of mercury in these regions. Here, we present mercury stable isotopic compositions in 18 species of wild marine fish collected from the Pearl River Estuary (PRE), south China. Our results showed variations in mass-independent fractionation (Delta Hg-199: +0.05 +/- 0.10 parts per thousand to +0.59 +/- 0.30 parts per thousand) with a Delta Hg-199/Delta Hg-201 of similar to 1.26, suggesting that aqueous MeHg underwent photo-degradation prior to incorporation into the food chain. For the results, we discovered small but significant differences of Delta Hg-199 values among herbivorous, demersal, and carnivorous fish, indicating that different feeding guilds of fish may have incorporated MeHg with various degrees of photo-demethylation. The consistent mercury isotope compositions between fish feeding habitat and mercury sources in the estuary provide potentially important findings on the transformation and bioaccumulation of this toxic metal in subtropical coastal environments.
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/6147
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文环境地球化学国家重点实验室
推荐引用方式 GB/T 7714	Runsheng Yin,Xinbin Feng,Junjun Zhang,et al. Using mercury isotopes to understand the bioaccumulation of Hg in the subtropical Pearl River Estuary, South China[J]. Chemosphere,2016,147(1):173-179.
APA	Runsheng Yin,Xinbin Feng,Junjun Zhang,Ke Pan,&Wenxiong Wang.(2016).Using mercury isotopes to understand the bioaccumulation of Hg in the subtropical Pearl River Estuary, South China.Chemosphere,147(1),173-179.
MLA	Runsheng Yin,et al."Using mercury isotopes to understand the bioaccumulation of Hg in the subtropical Pearl River Estuary, South China".Chemosphere 147.1(2016):173-179.

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