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Title: Catastrophe Vulnerability and Risk Mapping in the Iron Quadrangle, Brazil – Preliminary Results in the Rio das Velhas Watershed
Authors: Vicq, Raphael
Albuquerque, Teresa
Fonseca, Rita
Leite, Mariangela
Editors: Pope, James
Wolkersdorfer, Christian
Sartz, Lotta
Weber, Anne
Wolkersdorfer, Karoline
Keywords: Iron Quadrangle
Potentially toxic elements
Geostatistic Modelling
Issue Date: 2021
Publisher: International Mine Water Association
Citation: VICQ, R., ALBUQUERQUE, T., FONSECA, R., LEITE, M. (2020) Catastrophe Vulnerability and Risk Mapping in the Iron Quadrangle, Brazil – Preliminary Results in the Rio das Velhas Watershed. In: Pope, J., Wolkersdorfer, C., Sartz, L., Weber, A., Wolkersdorfer, K. (Eds.) Mine Water Solutions, IMWA 2020, pp. 13-19.
Abstract: The geochemistry of fluvial deposits is one of the most used proxies for contamination assessment in mined areas. A river sediment survey was carried out in Iron Quadrangle (IQ), Brazil, between 2013 and 2015. Subsequently, in the last four years, two dam failures happened, causing great environmental damage. Geostatistical modelling was used to model Potentially Toxic Elements’ spatial patterns and the definition of hot/ cold clusters for Arsenic contamination risk concerning catastrophic scenarios, such as dam failure. and so used as a tool for vulnerability and risk assessment. The preliminary results for Arsenic spatial distribution are introduced and discussed.
Type: article
Appears in Collections:ICT - Artigos em Livros de Actas/Proceedings

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