Fate of mercury from artisanal and small-scale gold mining in tropical rivers: Hydrological and biogeochemical controls. A critical review

M Moreno-Brush, DS McLagan… - Critical Reviews in …, 2020 - Taylor & Francis
Despite numerous existing publications, the fate of mercury (Hg) in ASGM-affected tropical
aquatic systems remains uncertain. This is driven by an incomplete understanding of the …

[HTML][HTML] Ecological and human health risk from exposure to contaminated sediments in a tropical river impacted by gold mining in Colombia

L Córdoba-Tovar, J Marrugo-Negrete, PAR Barón… - Environmental …, 2023 - Elsevier
Despite being one of the most important tropical biomes in the world, the Atrato River basin
has experienced a critical ecological deterioration due to gold mining, posing a significant …

Speciation and bioavailability of mercury in sediments impacted by gold mining in Colombia

J Pinedo-Hernández, J Marrugo-Negrete, S Díez - Chemosphere, 2015 - Elsevier
Mercury (Hg) speciation and bioavailability were studied in surface sediments affected by
artisanal and small-scale gold mining (ASGM) in the Mojana region of Colombia. The results …

Geochemistry of mercury in tropical swamps impacted by gold mining

J Marrugo-Negrete, J Pinedo-Hernández, S Díez - Chemosphere, 2015 - Elsevier
Artisanal and small-scale gold mining (ASGM) poses a serious threat to the local
environment. Colombia has very active ASGM activities, where mercury (Hg) ends in piles of …

Vertical distribution and trace element contamination in sediment cores affected by gold mining in Colombia

J Marrugo-Negrete, J Pinedo-Hernández… - Chemosphere, 2023 - Elsevier
The vertical distribution, level of contamination, potential ecological risks, and historical
fluxes of trace elements (Pb, As, and Hg) were evaluated from 210 Pb-dated sediment cores …

Evaluating ecological risks and metal bioavailability in post-dredging sediments of a wetland affected by artisanal gold mining

J Marrugo-Negrete, J Pinedo-Hernández… - Science of The Total …, 2024 - Elsevier
The evaluation of metal contamination, ecological risk, bioavailability, and the environmental
dredging depth in sediments of two Colombian riverine systems impacted by artisanal gold …

Mercury concentrations in water, sediments, soil, and fish around ancestral afro-descendant territories impacted by gold mining in the Cauca department, Colombia

K Caballero-Gallardo, J Palomares-Bolaños… - Water, Air, & Soil …, 2022 - Springer
Although mercury (Hg) is ubiquitously present in natural ecosystems, human activities have
promoted its accumulation and toxicity in the environment. The aim of this study was to …

Mud depocentres on the continental shelf: a neglected sink for anthropogenic contaminants from the coastal zone

MM de Mahiques, TJJ Hanebuth, CC Martins… - Environmental Earth …, 2016 - Springer
In this study, published and unpublished data from the Santos Estuarine Complex and Bay
and the adjacent continental shelf (São Paulo State, Brazil) were gathered in order to …

Paleoenvironmental reconstruction and metal assessment in the Prodelta of a gulf in southern Caribbean through last millennium

K Romaña, H Grajales, E Avendaño-Tamayo… - Marine Pollution …, 2024 - Elsevier
Estuarine sediments are major repositories for terrigenous materials and can record the
changes of regional human activities as well as natural processes. This study seeks to …

[HTML][HTML] Influencia del río Atrato en el golfo de Urabá durante el holoceno tardío, mar Caribe Colombiano

C Vélez-Agudelo, N Aguirre-Ramírez - Boletín de investigaciones …, 2016 - scielo.org.co
A partir del análisis sedimentológico, geoquímico (carbono orgánico total COT, nitrógeno
total NT, fósforo total PT, sílice biogénico SiB y carbonato de calcio CaCO3) y de diatomeas …