An approach for evaluating the bioavailability and risk assessment of potentially toxic elements using edible and inedible plants—the Remance (Panama) mining area as a model
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Published:2021-10-22
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ISSN:0269-4042
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Container-title:Environmental Geochemistry and Health
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language:en
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Short-container-title:Environ Geochem Health
Author:
González-Valoys Ana CristinaORCID, Jiménez Salgado José Ulises, Rodríguez Rita, Monteza-Destro Tisla, Vargas-Lombardo Miguel, García-Noguero Eva María, Esbrí José María, Jiménez-Ballesta Raimundo, García-Navarro Francisco Jesús, Higueras Pablo
Abstract
AbstractMining affects the environment, particularly through the persistence of accumulation of tailings materials; this is aggravated under tropical climatic conditions, which favours the release of potentially toxic elements (PTEs) bioavailable to the local flora and fauna and supposing a risk to human health. The Remance gold mine (Panamá), exploited intermittently for more than 100 years, and has remained derelict for over 20 years. Within the area live farmers who carry out subsistence agriculture and livestock activities. The objective of this study has been to study the transference of PTEs in the local agricultural soil-plants system, with the goal of identifying their bioavailability to perform a human risk assessment. The results obtained of the Bioaccumulation coefficient in local plants show very weak to strong absorption of As (< 0.001–1.50), Hg (< 0.001–2.38), Sb (0.01–7.83), Cu (0.02–2.89), and Zn (0.06–5.32). In the case of Cu in grass (18.3 mg kg−1) and plants (16.9 mg kg−1) the concentrations exceed the maximum authorised value in animal nutrition for ruminants (10 mg kg−1). The risk to human health for edible plants exceeds the non-carcinogenic risk for rice, corn, cassava, and tea leaves for Sb (HQ 19.450, 18.304, 6.075, 1.830, respectively), the carcinogenic risk for Cu (CR = 2.3 × 10–3, 7.7 × 10 −4, 1.1 × 10–3, 1.0 × 10–3, respectively), and the carcinogenic risk for As in rice, corn and tea leaves (CR = 8 × 10–5, 3 × 10–5, 3 × 10–5, respectively). Urgent measures are needed to alleviate these effects.
Funder
Secretaria Nacional de Ciencia, Tecnología e Innovación de Panamá (SENACYT) and Instituto para la Formación y Aprovechamiento del Recurso Humano (IFARHU) de Panamá Fondos para grupos de Investigación UCLM Universidad Tecnológica de Panamá Universidad de Castilla la Mancha
Publisher
Springer Science and Business Media LLC
Subject
Geochemistry and Petrology,General Environmental Science,Water Science and Technology,Environmental Chemistry,General Medicine,Environmental Engineering
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