4.6 Article

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

期刊

出版社

SPRINGER
DOI: 10.1007/s10653-021-01086-8

关键词

Potentially toxic elements (PTEs); Plants; Bioavailability; Risk assessment; Food

资金

  1. National Secretary of Science and Technology (SENACYT)
  2. Institute for the Training and Use of Human Resources (IFARHU) of Panama [270-2019-109]
  3. Fondos para Grupos de Investigacio'n UCLM [2019-GRIN27011]
  4. CRUECSIC agreement with Springer Nature

向作者/读者索取更多资源

Mining activities have potential risks to the environment and human health, especially under tropical climatic conditions. Studies found that concentrations of PTEs in local edible plants exceed safe standards, indicating the need for urgent measures to mitigate these effects.
Mining 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 (Panama), 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 x 10(-3), 7.7 x 10 (-4), 1.1 x 10(-3), 1.0 x 10(-3), respectively), and the carcinogenic risk for As in rice, corn and tea leaves (CR = 8 x 10(-5), 3 x 10(-5), 3 x 10(-5), respectively). Urgent measures are needed to alleviate these effects.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据