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Environmental and human health risks of arsenic in gold mining areas in the eastern Amazon.
Souza Neto, Hamilton Ferreira de; Pereira, Wendel Valter da Silveira; Dias, Yan Nunes; Souza, Edna Santos de; Teixeira, Renato Alves; Lima, Mauricio Willians de; Ramos, Silvio Junio; Amarante, Cristine Bastos do; Fernandes, Antonio Rodrigues.
Afiliação
  • Souza Neto HF; Federal Rural University of Amazon, Belém, PA, Brazil.
  • Pereira WVDS; Federal Rural University of Amazon, Belém, PA, Brazil.
  • Dias YN; Federal Rural University of Amazon, Belém, PA, Brazil.
  • Souza ES; Federal University of Southern and Southeastern Pará, Marabá, PA, Brazil.
  • Teixeira RA; Federal University of Southern and Southeastern Pará, Marabá, PA, Brazil.
  • Lima MW; Federal Rural University of Amazon, Belém, PA, Brazil.
  • Ramos SJ; Vale Institute of Technology - Sustainable Development, Belém, PA, Brazil.
  • Amarante CBD; Emílio Goeldi Museum of Pará, Belém, PA, Brazil.
  • Fernandes AR; Federal Rural University of Amazon, Belém, PA, Brazil. Electronic address: antonio.fernandes@ufra.edu.br.
Environ Pollut ; 265(Pt B): 114969, 2020 Oct.
Article em En | MEDLINE | ID: mdl-32559696
Knowledge of arsenic (As) levels in gold (Au) mining areas in the Amazon is critical for determining environmental risks and the health of the local population, mainly because this region has the largest mineral potential in Brazil and one of the largest in the world. The objective of this study was to assess the environmental and human health risks of As in tailings from Au exploration in the eastern Amazon. Samples were collected from soils and tailings from different exploration forms from 25 points, and the total concentration, pollution indexes and human health risk were determined. Concentrations of As were very high in all exploration areas, especially in tailings, whose maximum value reached 10,000 mg kg-1, far above the investigation value established by the Brazilian National Council of the Environment, characterizing a polluted area with high environmental risk. Exposure based on the daily intake of As demonstrated a high health risk for children and adults, whose non-carcinogenic risk indexes of 17.8, extremely above the acceptable limit (1.0) established by the United States Environmental Protection Agency. High levels of As in reactive fractions in underground, cyanidation, and colluvium mining areas, as well as extremely high gastric and intestinal bioaccessibility were found, suggesting that high levels may be absorbed by the local population. The results show that the study area is highly polluted through Au mining activities, putting the environment and population health at risk, and that there is an urgent need for intervention by the environmental control agencies for remediation.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arsênio / Poluentes do Solo Tipo de estudo: Etiology_studies / Risk_factors_studies Limite: Adult / Child / Humans País/Região como assunto: America do sul / Brasil Idioma: En Revista: Environ Pollut Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arsênio / Poluentes do Solo Tipo de estudo: Etiology_studies / Risk_factors_studies Limite: Adult / Child / Humans País/Região como assunto: America do sul / Brasil Idioma: En Revista: Environ Pollut Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido