A framework for ranking the environmental risk of abandoned mines in the State of Minas Gerais/Brazil.
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Data
2021
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Resumo
Abandoned mines are a major mining liability for the state of Minas Gerais, Brazil. The
impacts and risks of abandoned mines are specific to the location and type of ore, but they cover social,
economic, and cultural aspects. A central element of an abandoned mine management policy is the
definition of a methodology to identify and rank characteristics of abandoned mines that pose a risk
to the environment and society. This article presents a methodology for the ranking of environmental
risks for abandoned mines in the state of Minas Gerais based on different evaluation factors of their
external effects on the environment, safety, the population and surrounding areas, heritage and
the landscape. The environmental risk of the abandoned mine area was generated to establish the
“Abandoned Mine Area Environmental Risk Hierarchy”. To achieve this a multi-criteria analysis
(using the Analytical Hierarchy Process (AHP)) was adopted with each preponderant factor being
compared and measured. The results show that the use this framework can support in the decision-
making process of an environmental agency for developing the intervention aimed at situations of greater gravity, which, ultimately, may require the use of public resources to reduce risks.
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Risk assessment, Hierarchy, Mine closure, Environmental reclamation
Citação
FERNANDES, P. R. M.; LIMA, H. M. de. A framework for ranking the environmental risk of abandoned mines in the State of Minas Gerais/Brazil. Sustainability, v. 13, 2021. Disponível em: <https://www.mdpi.com/2071-1050/13/24/13874>. Acesso em: 29 abr. 2022.