دورية أكاديمية
Chemical fractionation and bioaccessibility of potentially toxic elements in area of artisanal gold mining in the Amazon.
| العنوان: | Chemical fractionation and bioaccessibility of potentially toxic elements in area of artisanal gold mining in the Amazon. |
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| المؤلفون: | Pereira WVDS; Federal Rural University of Amazon, Belém, PA, Brazil. Electronic address: wendel.valter@ufra.edu.br., Teixeira RA; Federal University of Southern and Southeastern Pará, Marabá, PA, Brazil. Electronic address: alves.agro@unifesspa.edu.br., Souza ES; Federal University of Southern and Southeastern Pará, Marabá, PA, Brazil. Electronic address: edna.souza@unifesspa.edu.br., Moraes ALF; Federal Rural University of Amazon, Belém, PA, Brazil. Electronic address: adriele_laena@hotmail.com., Campos WEO; Emílio Goeldi Museum of Pará, Belém, PA, Brazil. Electronic address: willisoneduardo@gmail.com., Amarante CBD; Emílio Goeldi Museum of Pará, Belém, PA, Brazil. Electronic address: cbamarante@museu-goeldi.br., Martins GC; Vale Institute of Technology - Sustainable Development, Belém, PA, Brazil. Electronic address: gcm_eng@yahoo.com.br., Fernandes AR; Federal Rural University of Amazon, Belém, PA, Brazil. Electronic address: antonio.fernandes@ufra.edu.br. |
| المصدر: | Journal of environmental management [J Environ Manage] 2020 Aug 01; Vol. 267, pp. 110644. Date of Electronic Publication: 2020 May 01. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Academic Press Country of Publication: England NLM ID: 0401664 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-8630 (Electronic) Linking ISSN: 03014797 NLM ISO Abbreviation: J Environ Manage Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: London ; New York, Academic Press. |
| مواضيع طبية MeSH: | Metals, Heavy* , Soil Pollutants*, Brazil ; Chemical Fractionation ; Environmental Monitoring ; Gold ; Mining ; Soil |
| مستخلص: | Artisanal mining may have modified the mobility, bioavailability and bioaccessibility of potentially toxic elements (PTEs) in the Serra Pelada gold mine, eastern Amazon, Brazil, which has not yet been studied. The objectives were to perform chemical fractionation of barium (Ba), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn), and to determine the bioaccessibility of these elements in soils and mining wastes collected in agriculture, forest, mining, and urban areas from the influence zone of the Serra Pelada gold mine. Pseudo total concentrations were obtained by acid digestion, chemical fractionation was performed using the Bureau Community of Reference (BCR) sequential extraction, oral bioaccessibility was obtained by the Simple Bioaccessibility Extraction Test (SBET) and lung bioaccessibility was obtained through Gamble's solution. The pseudo total concentrations indicated contamination by Ba, Cu and Ni. The sequential extraction revealed the predominance of all elements in the residual fraction. However, Ba is in high concentrations in the greater mobility forms, ranging from 166.36 to 1379.58 mg kg -1 . Regardless of the area, Cr and Cu are more oral bioaccessible in the intestinal phase, and Zn in the gastric phase. Ba, Cr and Zn are not lung bioaccessible, while Cu, Ni and Pb are bioaccessible via inhalation. The PTEs studied deserve attention not only due to the high pseudo total concentrations found (which indicate potential risk), but also the concentrations in high mobility forms and bioaccessible fractions, especially in the areas of greatest anthropogenic occupation. Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2020 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Bioavailability of metals; Environmental pollution; Sequential extraction; Serra Pelada |
| المشرفين على المادة: | 0 (Metals, Heavy) 0 (Soil) 0 (Soil Pollutants) 7440-57-5 (Gold) |
| تواريخ الأحداث: | Date Created: 20200519 Date Completed: 20200520 Latest Revision: 20200520 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1016/j.jenvman.2020.110644 |
| PMID: | 32421675 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1095-8630 |
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| DOI: | 10.1016/j.jenvman.2020.110644 |