Your browser doesn't support javascript.
loading
Assessment of Hg pollution in stream waters and human health risk in areas impacted by mining activities in the Ecuadorian Amazon.
Mestanza-Ramón, Carlos; Jiménez-Oyola, Samantha; Montoya, Alex Vinicio Gavilanes; Vizuete, Danny Daniel Castillo; D'Orio, Giovanni; Cedeño-Laje, Juan; Straface, Salvatore.
Afiliação
  • Mestanza-Ramón C; Research Group YASUNI-SDC, Escuela Superior Politécnica de Chimborazo, Sede Orellana, 20001, El Coca, Ecuador. carlos.mestanza@espoch.edu.ec.
  • Jiménez-Oyola S; Department of Environmental Engineering, University of Calabria, 87036, Rende, Italy. carlos.mestanza@espoch.edu.ec.
  • Montoya AVG; Facultad de Ingeniería en Ciencias de La Tierra, Escuela Superior Politécnica del Litoral, ESPOL, ESPOL Polytechnic University, Campus Gustavo Galindo Km 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador.
  • Vizuete DDC; Faculty of Natural Resources, Escuela Superior Politécnica de Chimborazo, Panamericana Sur, Km 1 ½, EC-060155, Riobamba, Ecuador.
  • D'Orio G; Department of Forest Engineering, Forest Management Planning and Terrestrial Measurements, Faculty of Silviculture and Forest Engineering, Transilvania University of Brasov, Sirul Beethoven 1, 500123, Brasov, Romania.
  • Cedeño-Laje J; Faculty of Natural Resources, Escuela Superior Politécnica de Chimborazo, Panamericana Sur, Km 1 ½, EC-060155, Riobamba, Ecuador.
  • Straface S; Department of Forest Engineering, Forest Management Planning and Terrestrial Measurements, Faculty of Silviculture and Forest Engineering, Transilvania University of Brasov, Sirul Beethoven 1, 500123, Brasov, Romania.
Environ Geochem Health ; 45(10): 7183-7197, 2023 Oct.
Article em En | MEDLINE | ID: mdl-37160830
Illegal gold mining activities have contributed to the release and mobilization of Hg and environmental degradation in many parts of the world. This study aims to determine the concentration of Hg in five provinces of the Amazon Region of Ecuador, in addition to assessing the risk to human health of exposed populations, applying deterministic and probabilistic methods. For this purpose, 147 water samples were collected in rivers and streams crossing and/or located near mining areas. As a result, 100% of the samples analyzed exceeded the maximum permissible limit (MPL) according to the water quality criteria for the preservation of aquatic life of the Ecuadorian regulations, while 7% of the samples exceeded the MPL for drinking water. On the other hand, considering the European Environmental Quality Standard (EQS) for surface water bodies, in our study, 100% of the samples exceed the maximum permissible limit (0.07 µg/L), and with respect to the Canadian water quality guidelines, 35% of the samples exceed the permissible limit (0.001 mg/l) for drinking water, and 100% of the samples exceed the limit for life in water bodies (0.0001 mg/l). The risk assessment revealed that the probability of developing adverse health effects from exposure to Hg is below the recommended limits according to the probabilistic assessment; this is in relation to the criterion of residential and recreational use of water resources. However, it was identified that the child population doubles the acceptable systemic risk level according to the results of the deterministic assessment in the residential scenario. This information can be used by decision-makers to implement strategies to reduce Hg contamination and exposure of the population in Ecuadorian Amazonian rivers.
Assuntos
Palavras-chave
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: Poluentes Químicos da Água / Água Potável / Mercúrio Tipo de estudo: Etiology_studies / Prognostic_studies / Risk_factors_studies Limite: Child / Humans País/Região como assunto: America do norte / America do sul / Ecuador Idioma: En Revista: Environ Geochem Health Assunto da revista: QUIMICA / SAUDE AMBIENTAL Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Equador País de publicação: Holanda
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: Poluentes Químicos da Água / Água Potável / Mercúrio Tipo de estudo: Etiology_studies / Prognostic_studies / Risk_factors_studies Limite: Child / Humans País/Região como assunto: America do norte / America do sul / Ecuador Idioma: En Revista: Environ Geochem Health Assunto da revista: QUIMICA / SAUDE AMBIENTAL Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Equador País de publicação: Holanda