Magnetic response of Arsenic pollution in a slag covered soil profile close to an abandoned tungsten mine, southern China

doi:10.1038/s41598-020-61411-6

	Magnetic response of Arsenic pollution in a slag covered soil profile close to an abandoned tungsten mine, southern China
	Ouyang, Tingping 1,4; Li, Mingkun 1; Appel, Erwin 2; Tang, Zhihua 3,4; Peng, Shasha 4; Li, Sang 1; Zhu, Zhaoyu 4
刊名	SCIENTIFIC REPORTS
	2020-03-09
卷号	10 期号:1 页码:8
ISSN号	2045-2322
DOI	10.1038/s41598-020-61411-6
通讯作者	Ouyang, Tingping(oyangtp@m.scnu.edu.cn)
英文摘要	Previous studies indicated serious soil arsenic (As) pollution of large spatial extent related to tungsten mining. We performed systematic analyses of magnetic parameters and As contents of a slag covered soil profile close to the abandoned tungsten mine in southern China, in order to discuss the feasibility of using sensitive, non-destructive, and cost-effective magnetic methods for monitoring the soil arsenic content in such arsenic pollution areas. The results indicate that arsenic sulfide entered from slags into the underlying soil and changed to iron arsenate and moveable arsenic ion. The arsenic ions were transported from the upper to the lower part of the soil profile, leading to more serious arsenic pollution at lower levels of the section. Pedogenesis and oxidation of the entered iron and arsenic sulfide resulted in coexistence of magnetite/maghemite and hematite, with different contributions at depths of 125-195 cm, 60-125 cm, and 0-60 cm. The arsenic content is significant positively correlated with the hematite concentration given by the magnetic parameter HIRM and negatively correlated with the S-300 ratio that measures the relative contributions of magnetite(+maghemite) and hematite. The S-300 ratio is effective for semi-quantification of soil arsenic content, and may be also used for soil arsenic pollution assessment and monitoring in similar settings of tungsten mining.
资助项目	Natural Science Foundation of China[41741012] ; Natural Science Foundation of China[41977261] ; Guangzhou Science Technology and Innovation Commission[201707010402] ; NSFC-Guangdong Joint Fund[U1201131]
WOS关键词	HEAVY-METAL POLLUTION ; ACQUISITION CURVES ; SUSCEPTIBILITY ; CONTAMINATION ; SORPTION ; QUANTIFICATION ; OXIDATION ; PROXY ; LEAD ; AREA
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000563347800001
资助机构	Natural Science Foundation of China ; Guangzhou Science Technology and Innovation Commission ; NSFC-Guangdong Joint Fund
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/27624]
专题	中国科学院广州能源研究所
通讯作者	Ouyang, Tingping
作者单位	1.South China Normal Univ, Sch Geog, Guangzhou 510631, Peoples R China 2.Univ Tubingen, Dept Geosci, Holderlinstr 12, D-72074 Tubingen, Germany 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Ouyang, Tingping,Li, Mingkun,Appel, Erwin,et al. Magnetic response of Arsenic pollution in a slag covered soil profile close to an abandoned tungsten mine, southern China[J]. SCIENTIFIC REPORTS,2020,10(1):8.
APA	Ouyang, Tingping.,Li, Mingkun.,Appel, Erwin.,Tang, Zhihua.,Peng, Shasha.,...&Zhu, Zhaoyu.(2020).Magnetic response of Arsenic pollution in a slag covered soil profile close to an abandoned tungsten mine, southern China.SCIENTIFIC REPORTS,10(1),8.
MLA	Ouyang, Tingping,et al."Magnetic response of Arsenic pollution in a slag covered soil profile close to an abandoned tungsten mine, southern China".SCIENTIFIC REPORTS 10.1(2020):8.