干旱区生态环境知识资源中心(Arid): Assessment of dissolved mercury by diffusive gradients in thin films devices in abandoned ponds impacted by small scale gold mining

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DOI	10.1016/j.envres.2021.112633
	Assessment of dissolved mercury by diffusive gradients in thin films devices in abandoned ponds impacted by small scale gold mining
	Marrugo-Madrid, Siday; Salas-Moreno, Manuel; Gutierrez-Mosquera, Harry; Salazar-Camacho, Carlos; Marrugo-Negrete, Jose; Diez, Sergi
通讯作者	Diez, S (corresponding author)，IDAEA CSIC, Environm Chem Dept, Inst Environm Assessment & Water Res, E-08034 Barcelona, Spain.
来源期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
EISSN	1096-0953
出版年	2022
卷号	208
英文摘要	In order to fulfil the Minamata Convention on Mercury, it is necessary to monitor the Hg contamination in freshwater ecosystems nearby artisanal and small scale gold mining (ASGM) areas. Since most of these ASGM communities are located in remote areas, a convenient method for sampling, preserving and transporting samples is needed. In this study we evaluated the feasibility of the diffusive gradient in thin-films (DGT) technique to detect and quantify the labile fraction of Hg and other metals (Pb, Cu, Zn, Cd, Ni, Mn and Cr) in a hard-to-reach gold mining district in the state of ChocO, Colombia. We deployed DGT at sampling sites along the Atrato river and abandoned mining ponds (AMPs) which were deserted in different periods since 1997 to 2019 (6-15 years). In average, the labile THg concentrations in AMPs (148.9 +/- 43.2 ng L-1) were a 50% higher than in the river water (99.9 +/- 37.4 ng L-1). In the ponds, no significant differences were found in labile Hg with respect abandonment period. Labile Ni (0.9-493.1), Mn (1.33-11.48), Cu (0.030-2.233), and Zn (0.67-10.29) (in mu g L-1) were found in higher amounts than for the rest of metals. Labile concentrations of metals are related with their downstream proximity to gold mining activities, being higher in devices deployed close to ASGM sites. Moreover, this study demonstrates the feasibility of the DGT technique to sample, transport, storage, and preserve labile Hg from hard-to-reach ASGM areas.
英文关键词	DGT ASGM Abandoned mining ponds Hg Trace metals
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000752019000008
WOS关键词	TECHNIQUE DGT ; SPECIATION ; WATER ; SEDIMENTS ; SAMPLERS ; SOILS ; RIVER ; BIOAVAILABILITY ; METHYLMERCURY ; PREDICTION
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376181
作者单位	[Marrugo-Madrid, Siday; Diez, Sergi] IDAEA CSIC, Environm Chem Dept, Inst Environm Assessment & Water Res, E-08034 Barcelona, Spain; [Salas-Moreno, Manuel; Gutierrez-Mosquera, Harry; Salazar-Camacho, Carlos] Univ Tecnol Choco, Fac Nat Sci, Dept Biol, Quibdo, Colombia; [Marrugo-Negrete, Jose] Univ Cordoba, Carrera 6 76-103, Monteria, Colombia
推荐引用方式 GB/T 7714	Marrugo-Madrid, Siday,Salas-Moreno, Manuel,Gutierrez-Mosquera, Harry,et al. Assessment of dissolved mercury by diffusive gradients in thin films devices in abandoned ponds impacted by small scale gold mining[J],2022,208.
APA	Marrugo-Madrid, Siday,Salas-Moreno, Manuel,Gutierrez-Mosquera, Harry,Salazar-Camacho, Carlos,Marrugo-Negrete, Jose,&Diez, Sergi.(2022).Assessment of dissolved mercury by diffusive gradients in thin films devices in abandoned ponds impacted by small scale gold mining.ENVIRONMENTAL RESEARCH,208.
MLA	Marrugo-Madrid, Siday,et al."Assessment of dissolved mercury by diffusive gradients in thin films devices in abandoned ponds impacted by small scale gold mining".ENVIRONMENTAL RESEARCH 208(2022).