Application of stable isotopes to the bioaccumulation and trophic transfer of arsenic in aquatic organisms around a closed realgar mine

doi:10.1016/j.scitotenv.2020.138550

	Application of stable isotopes to the bioaccumulation and trophic transfer of arsenic in aquatic organisms around a closed realgar mine
	Yang, Fen 2; Yu, Zhenzhen 2,3; Xie, Shaowen 4,5; Feng, Hanxiao 2,3; Wei, Chaoyang 2; Zhang, Hongzhi 2; Zhang, Jing 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-07-15
卷号	726 页码:13
关键词	Arsenic speciation Bioaccumulation Biotransformation Food chain Trophic transfer Isotopic analysis
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.138550
通讯作者	Wei, Chaoyang(weicy@igsnrr.ac.cn)
英文摘要	The bioaccumulation and trophic transfer of As along foodwebs in freshwater ecosystems remain largely unknown. In this study, multiple environmental and biological samples were collected from a closed realgar mining area in South China. The As concentrations in the surface water, sediments and soils in the mining area were 0.62-3293 mu g/L, 9.53-4543 mg/kg and 7.32-5008 mg/kg, respectively, and gradually decreased with distance from the central mining sites, indicating that historic As mining activities had an eminent impact on As contamination around themine. The As concentrations in aquatic organisms ranged from 0.60 mg/kg to 45.75 mg/kg and varied markedly among sites and species, reflecting the influence of various physiologic and environmental factors. Arsenic species identified by liquid chromatography inductively coupled plasma-mass spectrometry (HPLC-ICPMS) weremainly organic, comprising 8% to 66% of the total As. Both the proportions and concentrations of inorganic As were positively correlated with total As. This correlation could be attributed to the higher assimilation and accumulation of inorganic As or the lower biotransformation ability of inorganic As with the increasing total As in the studied organisms. Values of delta C-13 and delta N-15 in aquatic organisms ranged from -30.59% to -15.07% and from 4.31% to 12.98%, respectively, indicating multiple trophic levels and variety in the diet sources of these organisms. The delta N-15 increased distinctly in the order of planktivorous
资助项目	National Natural Science Foundation of China[41571470] ; National Natural Science Foundation of China[41907325] ; 1W1B endstation of the Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences[2016-BEPC-PT-000612]
WOS关键词	FRESH-WATER FISH ; FOOD-WEB ; TRACE-ELEMENTS ; HEAVY-METALS ; HEALTH-RISK ; SPECIATION ; MARINE ; MERCURY ; RIVER ; ENVIRONMENT
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000537424400001
资助机构	National Natural Science Foundation of China ; 1W1B endstation of the Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/159478]
专题	中国科学院地理科学与资源研究所
通讯作者	Wei, Chaoyang
作者单位	1.Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China 2.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Guangdong Inst Ecoenvironm Sci & Technol, Guangdong Key Lab Integrated Agroenvironm Pollut, Guangzhou, Peoples R China 5.Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Guangzhou, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fen,Yu, Zhenzhen,Xie, Shaowen,et al. Application of stable isotopes to the bioaccumulation and trophic transfer of arsenic in aquatic organisms around a closed realgar mine[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,726:13.
APA	Yang, Fen.,Yu, Zhenzhen.,Xie, Shaowen.,Feng, Hanxiao.,Wei, Chaoyang.,...&Zhang, Jing.(2020).Application of stable isotopes to the bioaccumulation and trophic transfer of arsenic in aquatic organisms around a closed realgar mine.SCIENCE OF THE TOTAL ENVIRONMENT,726,13.
MLA	Yang, Fen,et al."Application of stable isotopes to the bioaccumulation and trophic transfer of arsenic in aquatic organisms around a closed realgar mine".SCIENCE OF THE TOTAL ENVIRONMENT 726(2020):13.