The Risk of Land Degradation in Areas Impacted by Tailings Mudflows: A Legal and Economic Assessment DOI Open Access
Lucimar de Carvalho Medeiros, Maíse Soares de Moura,

Isadora Fonseca Navarro

et al.

Land Degradation and Development, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

ABSTRACT Accidents involving tailings dams are threatening because of their potential impacts. In many countries, despite the existence legislation population lives with insecurity dam breaks. Using Minas Gerais state in Brazil as an example, aforementioned applies to hundreds dams, specifically Vargem Grande Vale mining company. The area affected by a failure is set through legal‐administrative instruments called “flood patches.” purpose this study was analyze these patches, using and assess possible land degradation impacts failure, focused on flooded native vegetation. assessment resorted VERA—Economic Valuation Environmental Resources method. results exposed destruction 200 ha Atlantic Forest 55 Cerrado vegetation within flood patches. However, simulated outcomes also reveal significant decline patches short period (from 4.60 km 2 2022 3.05 2023), related dam‐decommissioning risk‐reduction works allegedly implemented or be This reduction can misleading decommissioning issues frequently used companies minimize responsibilities case breakup. It worth mentioning that patch led convenient drop VERA results, from nearly 74 53 million dollars. Therefore, official protocol delineate must improved allow more realistic evaluation. regard, changes overtime better defined legislation, namely inclusion potentially soil‐ water‐bearing ecosystem services. Effective monitoring paramount for true evaluation impacted areas.

Language: Английский

Groundwater flow and transport of metals under deposits of mine tailings: A case study in Brumadinho, Minas Gerais, Brazil DOI Creative Commons
Victor Hugo Sarrazin Lima, João Paulo Moura,

Teresa Cristina Tarlé Pissarra

et al.

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 9, P. 100690 - 100690

Published: March 13, 2024

The deposits of mine tailings can be a source groundwater contamination by metals. In this study, we simulated the concentrations iron, manganese and aluminum in potentially affected drainage from located Brumadinho (Brazil). aim was to verify whether observed region attributed these drainages. simulation used FREEWAT graphical interface, which incorporates MODFLOW model, hydraulic properties existing unconfined confined aquifers, spatial distribution tailings' deposits, dissolved iron measured drilled wells. period 20 years, starting 2019 after collapse B1 dam Córrego do Feijão Vale, S.A. modeling results revealed plumes metal progressively less dispersed over time, aquifer, increased aquifer. both aquifers were generally lower than legal limits imposed for human consumption, although some areas vicinity had higher those limits, especially widened time. most relevant result revelation that contribution wells might have not exceeded 1%. This is important management standpoint, because monitoring anthropogenic cases (where rock weathering dominates chemistry) becomes more challenging.

Language: Английский

Citations

8
Experimental and numerical investigations of bending mechanical properties and fracture characteristics of cemented tailings-waste rock backfill under three-point bending DOI
Tong Gao, Aixiang Wu, Shaoyong Wang

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 447, P. 138149 - 138149

Published: Aug. 31, 2024

Language: Английский

Citations

4
Assessing sediment dynamics and erosion-deposition patterns after a dam break: insights from the Brumadinho tailings dam failure in Brazil DOI
Caio César de Sousa Mello, Julian Cardoso Eleutério

Journal of South American Earth Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 105472 - 105472

Published: March 1, 2025

Language: Английский

Citations

0
The economic valuation of environmental damages in scenarios of tailings dams’ ruptures: The case of Brumadinho’s catastrophe, Minas Gerais, Brazil DOI Creative Commons
Lucimar de Carvalho Medeiros, Maíse Soares de Moura, Luís Filipe Sanches Fernandes

et al.

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 101037 - 101037

Published: Nov. 1, 2024

Language: Английский

Citations

1
Assessment and Management of Urban Flood Risk Based on Unmanned Aerial Vehicle Photogrammetry and Swat Model DOI
L. Z. Wu, Hua Li

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Citations

0
The Risk of Land Degradation in Areas Impacted by Tailings Mudflows: A Legal and Economic Assessment DOI Open Access
Lucimar de Carvalho Medeiros, Maíse Soares de Moura,

Isadora Fonseca Navarro

et al.

Land Degradation and Development, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

ABSTRACT Accidents involving tailings dams are threatening because of their potential impacts. In many countries, despite the existence legislation population lives with insecurity dam breaks. Using Minas Gerais state in Brazil as an example, aforementioned applies to hundreds dams, specifically Vargem Grande Vale mining company. The area affected by a failure is set through legal‐administrative instruments called “flood patches.” purpose this study was analyze these patches, using and assess possible land degradation impacts failure, focused on flooded native vegetation. assessment resorted VERA—Economic Valuation Environmental Resources method. results exposed destruction 200 ha Atlantic Forest 55 Cerrado vegetation within flood patches. However, simulated outcomes also reveal significant decline patches short period (from 4.60 km 2 2022 3.05 2023), related dam‐decommissioning risk‐reduction works allegedly implemented or be This reduction can misleading decommissioning issues frequently used companies minimize responsibilities case breakup. It worth mentioning that patch led convenient drop VERA results, from nearly 74 53 million dollars. Therefore, official protocol delineate must improved allow more realistic evaluation. regard, changes overtime better defined legislation, namely inclusion potentially soil‐ water‐bearing ecosystem services. Effective monitoring paramount for true evaluation impacted areas.

Language: Английский

Citations

0