Synthesis methods, properties, and modifications of biochar-based materials for wastewater treatment: a review

B Díaz, A Sommer-Márquez, PE Ordoñez… - Resources, 2024 - mdpi.com
The global impact of water and soil contamination has become a serious issue that affects
the world and all living beings. In this sense, multiple treatment alternatives have been …

[HTML][HTML] Probabilistic multi-pathway human health risk assessment due to heavy metal (loid) s in a traditional gold mining area in Ecuador

S Jiménez-Oyola, E Chavez, MJ García-Martínez… - Ecotoxicology and …, 2021 - Elsevier
Mining operations are important causes of environmental pollution in developing countries
where mining waste management is not adequate. Consequently, heavy metal (loid) s are …

Pollution level of trace metals (As, Pb, Cr and Cd) in the sediment of Rupsha River, Bangladesh: assessment of ecological and human health risks

K Kubra, AH Mondol, MM Ali, MAU Palash… - Frontiers in …, 2022 - frontiersin.org
The study area was selected in the Rupsha river basin and the sediment samples were
collected to determine trace metal concentrations of As, Pb, Cd, and Cr along with biological …

Risk assessment of mining environmental liabilities for their categorization and prioritization in gold-mining areas of Ecuador

B Salgado-Almeida, DA Falquez-Torres… - Sustainability, 2022 - mdpi.com
Mining environmental liabilities (MEL) are of great concern because of potential risks to
ecosystems and human health. In this research, the environmental risk (RI) related to MEL …

The Role of Oxygenated Functional Groups on Cadmium Removal using Pyrochar and Hydrochar Derived from Guadua angustifolia Residues

C Navas-Cárdenas, M Caetano, D Endara, R Jiménez… - Water, 2023 - mdpi.com
In the Ecuadorian Amazonia, there is a concern about the presence of high concentrations
of cadmium (Cd) in rivers and sediments because of changes in land use and …

Heavy metal (loid) s contamination in water and sediments in a mining area in Ecuador: a comprehensive assessment for drinking water quality and human health risk

S Jiménez-Oyola, PE Valverde-Armas… - Environmental …, 2023 - Springer
Elevated heavy metal (loid) s concentrations in water lower its quality posing a threat to
consumers. This study aims to assess the human health risk caused by heavy metal (loid) s …

Trace elements in farmland soils and crops, and probabilistic health risk assessment in areas influenced by mining activity in Ecuador

P Romero-Crespo, S Jiménez-Oyola… - Environmental …, 2023 - Springer
Consumption of food grown in contaminated soils may be a significant human exposure
pathway to pollutants, including toxic elements. This study aimed to investigate the pollution …

Risk Assessment of Groundwater Contamination in the Gala, Tenguel, and Siete River Basins, Ponce Enriquez Mining Area—Ecuador

P Campoverde-Muñoz, L Aguilar-Salas… - Sustainability, 2022 - mdpi.com
Groundwater is a strategic resource, which is experiencing a growing threat of
contamination worldwide. This study aimed to assess the vulnerability of the groundwaters …

A review of wetland vulnerability assessment and monitoring in semi-arid environments of sub-Saharan Africa

T Dube, T Dube, T Marambanyika - Physics and Chemistry of the Earth …, 2023 - Elsevier
This study presents a comprehensive literature review exploring the effects of artisanal
mining on wetlands in semi-arid regions of sub-Saharan Africa. The review encompasses …

Use of tailings as a substitute for sand in concrete blocks production: gravimetric mining wastes as a case study

D Méndez, F Guzmán-Martínez, M Acosta… - Sustainability, 2022 - mdpi.com
This study assesses the feasibility of reusing tailings from a gold mining area in southern
Ecuador in concrete block (CB) manufacturing. For this purpose, physical, chemical, and …