Regional-scale mapping for determining geochemical background values in soils of the Itacaiúnas River Basin, Brazil: The use of compositional data analysis (CoDA)

PK Sahoo, R Dall'Agnol, GN Salomão, JSF Junior… - Geoderma, 2020 - Elsevier
This study aims at providing high quality soil geochemical data at a regional scale (1 sample
per 25 km 2) to understand the source and distribution of potentially toxic elements (PTEs …

An integrated statistical-graphical approach for the appraisal of the natural background levels of some major ions and potentially toxic elements in the groundwater of …

V Amiri, M Nakhaei, R Lak, P Li - Environmental Earth Sciences, 2021 - Springer
In this study, we attempted to calculate the Natural Background Level (NBL) for 12 selected
chemical compounds in the Urmia aquifer, northwestern Iran. In this study, combined …

Bioaccumulation and human health risks of potentially toxic elements in fish species from the southeastern Carajás Mineral Province, Brazil

MW de Lima, WV da Silveira Pereira… - Environmental …, 2022 - Elsevier
Anthropogenic activities may have increased the concentrations of potentially toxic elements
(PTEs) in fish from the southeastern Carajás Mineral Province in Brazil, which has not yet …

Mapping and quantification of ferruginous outcrop savannas in the Brazilian Amazon: A challenge for biodiversity conservation

PWM Souza-Filho, TC Giannini, R Jaffé, AM Giulietti… - PLoS …, 2019 - journals.plos.org
The eastern Brazilian Amazon contains many isolated ferruginous savanna ecosystem
patches (locally known as 'canga vegetation') located on ironstone rocky outcrops on the top …

Source and background threshold values of potentially toxic elements in soils by multivariate statistics and GIS-based mapping: a high density sampling survey in the …

PK Sahoo, R Dall'Agnol, GN Salomão… - … geochemistry and health, 2020 - Springer
A high-density regional-scale soil geochemical survey comprising 727 samples (one sample
per each 5× 5 km grid) was carried out in the Parauapebas sub-basin of the Brazilian …

High resolution hydrogeochemical survey and estimation of baseline concentrations of trace elements in surface water of the Itacaiúnas River Basin, southeastern …

PK Sahoo, R Dall'Agnol, GN Salomão… - Journal of Geochemical …, 2019 - Elsevier
A high resolution systematic geochemical mapping at regional-scale is considered to be the
best available method to estimate geochemical baseline levels of trace elements in stream …

Estimation of natural background levels of heavy metals and major variables in groundwater to ensure the sustainable supply of safe drinking water in Fereidan, Iran

V Amiri, N Sohrabi, R Lak, G Tajbakhsh - Environment, Development and …, 2024 - Springer
Determining the controlling factors of the quality of groundwater can help decision-makers in
preparing optimal management plans and a sustainable supply of water for drinking and …

Changes in the surface water quality of a tropical watershed in the southeastern amazon due to the environmental impacts of artisanal mining

GN Salomão, R Dall'Agnol, PK Sahoo… - Environmental …, 2023 - Elsevier
The expansion of areas of human occupation and the increase in economic activity and
deforestation are negatively impacting the Amazon ecosystem. Situated in the Carajás …

[HTML][HTML] The sustainability index of the physical mining Environment in protected areas, Eastern Amazon

PWM Souza-Filho, RBL Cavalcante… - Environmental and …, 2020 - Elsevier
The application of sustainability principles to mining activities remains challenging.
Explorations of non-renewable natural resources are irreversible; however, they can be …

Geochemical mapping and background concentrations of iron and potentially toxic elements in active stream sediments from Carajás, Brazil–implication for risk …

GN Salomão, MA Figueiredo, R Dall'Agnol… - Journal of South …, 2019 - Elsevier
Abstract The Companhia de Pesquisa de Recursos Minerais (CPRM-Geological Survey of
Brazil) has conducted geochemical surveys in the south-central region of the Itacaiúnas …