Arsenic characteristics in the terrestrial environment in the vicinity of the Shimen realgar mine, China

doi:10.1016/j.scitotenv.2018.01.079

	Arsenic characteristics in the terrestrial environment in the vicinity of the Shimen realgar mine, China
	Wei, CY; Xie, SW; Yang, F; Zhang, HZ; Chen, T; Liu, JX; Zhang, J; Chen T(陈涛); Zhang J(张静)
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018
卷号	626 页码:77-86
关键词	Arsenic speciation HPLC-ICP-MS XANES Earthworms Terrestrial plants Biotransformation
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.01.079
文献子类	Article
英文摘要	In this study, multiple types of samples, including soils, plants, litter and soil invertebrates, were collected from a former arsenic (As) mine in China. The total As concentrations in the soils, earthworms, litter and the above ground portions of grass from the contaminated area followed the decreasing order of 83-2224 mg/kg, 31-430 mg/kg, 1-62 mg/kg and 2-23 mg/kg, respectively. X-ray absorption near-edge structure (XANES) analysis revealed that the predominant form of As in the soils was arsenate (As(V)), while no arsenite (As(III)) was detected. In the grass and litter of the native plant community, inorganic As species (As(V) and As(III)) were the main species, while minor amounts of DMA, MMA, AsC, and an unknown As species were also detected in the extracts analyzed with high-performance liquid chromatography inductively coupled plasma mass spectrometry (HPLC-ICP-MS). The As speciation and As concentrations varied with the plant species, and very high As levels (197-584 mg/kg) and proportions of inorganic As (>99%) were found in two As-hyperaccumulating ferns, Pteris vittata and Pteris cretica. The major As species extracted from earthworms were inorganic, with proportions of 51- 53% As(III) and 38-48% As(V). AsB was the only organic species present in the earthworm samples, although at low proportions (<8.99%). The internal bioconversion of other As species is hypothesized to contribute greatly to the formation and accumulation of AsB in earthworms, although the direct external absorption of organic As from soils might be another source. This study sheds light on the potential sources of complex organoarsenicals, such as AsB, in terrestrial organisms. (C) 2018 Elsevier B.V. All rights reserved.
电子版国际标准刊号	1879-1026
WOS关键词	EARTHWORM LUMBRICUS-TERRESTRIS ; RAY-ABSORPTION SPECTROSCOPY ; HEAVY-METAL POLLUTION ; PTERIS-VITTATA ; CONTAMINATED SOILS ; ANTIMONY MINE ; SPECIATION ; PLANTS ; BIOACCUMULATION ; AREA
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000428194000009
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285765]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wei, CY,Xie, SW,Yang, F,et al. Arsenic characteristics in the terrestrial environment in the vicinity of the Shimen realgar mine, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,626:77-86.
APA	Wei, CY.,Xie, SW.,Yang, F.,Zhang, HZ.,Chen, T.,...&张静.(2018).Arsenic characteristics in the terrestrial environment in the vicinity of the Shimen realgar mine, China.SCIENCE OF THE TOTAL ENVIRONMENT,626,77-86.
MLA	Wei, CY,et al."Arsenic characteristics in the terrestrial environment in the vicinity of the Shimen realgar mine, China".SCIENCE OF THE TOTAL ENVIRONMENT 626(2018):77-86.