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DOI	10.1016/j.marpolbul.2020.111384
	Geochemical evaluation of potentially toxic elements determined in surface sediment collected in an area under the influence of gold mining
	Santos M.V.S.; da Silva Júnior J.B.; de Carvalho C.E.V.; dos Santos Vergílio C.; Hadlich G.M.; de Santana C.O.; de Jesus T.B.
发表日期	2020
ISSN	0025326X
卷号	158
英文摘要	In this present paper, the distribution of toxic metals and sediment quality were evaluated in five sampling points of the Itapicuru-Mirim River located in the city of Jacobina, Bahia, Brazil. The concentration of the elements arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn) were determined from sediment samples collected from the superficial layer (0–10 cm) in November 2013. After the samples' total decomposition, the total concentration of metals was determined by inductively coupled plasma optical emission spectrometry (ICP OES), except for Hg, which was measured by inductively coupled plasma atomic emission spectrometry (ICP AES). A geochemical evaluation of sediment quality was performed using enrichment factor (EF), geoaccumulation index (Igeo), and pollution load index (PLIThe results of the total concentrations in the analyzed sediment samples were compared with the threshold effect levels (TELs) and probable (PELs) effect levels (PELs) in sediment quality guidelines (SQGs). For the fraction <75 μm, the decreasing order for the metal concentrations was (ppm): Fe (10.86%) > Mn (120.8) > Cr (122) > Zn (76.5) > Pb (49.6) > Cu (32.6) > Ni (28.6) > Hg (0.31) > Cd (0.13). Igeo suggested a moderate to seriously polluted category for Hg and moderately polluted for Cu. Generally, the results indicated probable risks to the biota caused by Cr, Ni, Pb, and Hg metals. However, only Hg, Cd, and Cu were of anthropogenic origin. Although the sediments are relatively preserved from pollution by these metals, there is a progressive deterioration of this compartment downstream of the Itapicuru-Mirim River in the city of Jacobina. © 2020 Elsevier Ltd
英文关键词	Contamination assessment; Environmental risk; Geochemical indexes; Metals; Tropical river
语种	英语
scopus关键词	Copper; Deterioration; Economic geology; Geochemistry; Inductively coupled plasma; Mercury (metal); Mercury compounds; Optical emission spectroscopy; Quality control; Sedimentology; Sediments; Spectrometry; Anthropogenic origin; Geo-accumulation index; Inductively coupled plasma-atomic emission spectrometry; Inductively coupled plasma-optical emission spectrometry; Pollution load indices; Potentially toxic elements; Sediment quality guideline (SQGs); Threshold effect levels; River pollution; arsenic; cadmium; chromium; copper; gold; iron; lead; manganese; mercury; nickel; zinc; gold; heavy metal; concentration (composition); decomposition; geochemistry; gold mine; heavy metal; mining; sediment pollution; toxic material; Article; concentration (parameter); controlled study; decomposition; environmental enrichment; environmental policy; geochemical analysis; geographic distribution; inductively coupled plasma atomic emission spectrometry; mining; particulate matter; pollution monitoring; pollution transport; risk assessment; sediment; toxic waste; water analysis; water pollution; Brazil; environmental monitoring; mining; water pollutant; Bahia; Brazil; Itapicuru River; Jacobina; Justicia candicans; Brazil; Environmental Monitoring; Geologic Sediments; Gold; Metals, Heavy; Mining; Risk Assessment; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148785
作者单位	Postgraduate Program in Geochemistry: Petroleum and Environment (POSPETRO), Geoscience Institute – Federal University of Bahia (UFBA), Rua Barão de Jeremoabo, s/n, Salvador, Bahia 40170-110, Brazil; Federal Institute of Bahia (IFBA), Tv. Santo Amaro, n° 44, Santo Amaro Campus, Santo Amaro da Purificação, Bahia 44200-000, Brazil; North Fluminense State University Darcy Ribeiro, Alberto Lamego Avenue, 2000, California Park, Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil
推荐引用方式 GB/T 7714	Santos M.V.S.,da Silva Júnior J.B.,de Carvalho C.E.V.,et al. Geochemical evaluation of potentially toxic elements determined in surface sediment collected in an area under the influence of gold mining[J],2020,158.
APA	Santos M.V.S..,da Silva Júnior J.B..,de Carvalho C.E.V..,dos Santos Vergílio C..,Hadlich G.M..,...&de Jesus T.B..(2020).Geochemical evaluation of potentially toxic elements determined in surface sediment collected in an area under the influence of gold mining.Marine Pollution Bulletin,158.
MLA	Santos M.V.S.,et al."Geochemical evaluation of potentially toxic elements determined in surface sediment collected in an area under the influence of gold mining".Marine Pollution Bulletin 158(2020).