Evidence map›Paper›PMID 42862425›Full record

ArticleEnvironmental geochemistry and health2026

Geogenic controls and anthropogenic inputs on the seasonal hydrogeochemical variability of the Paraopeba River basin, Brazil.

Normara Yane Mar da Costa Andrade, Gabriel Soares de Almeida, Lúcio Cardoso de Medeiros Filho, Roberto Dall'Agnol, Prafulla Kumar Sahoo, Lucas Pereira Leão, Fernando Verassani Laureano, Vitor Brognaro Pimenta, Gabriel Negreiros Salomão

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Article in Environmental geochemistry and health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

9 authors.

Normara Yane Mar da Costa AndradeInstituto Tecnológico Vale, Belém, PA, Brazil.
Gabriel Soares de AlmeidaInstituto Tecnológico Vale, Belém, PA, Brazil.
Lúcio Cardoso de Medeiros FilhoInstituto Tecnológico Vale, Belém, PA, Brazil.
Roberto Dall'AgnolPrograma de Pós-Graduação em Geologia e Geoquímica (PPGG), Universidade Federal do Pará (UFPA), Instituto de Geociências, Belém, PA, Brazil.
Prafulla Kumar SahooDepartment of Environmental Science and Technology, Central University of Punjab, Bathinda, Punjab, India.
Lucas Pereira LeãoDepartament of Geology, School of Mines, Federal University of Ouro Preto, Ouro Preto, MG, Brazil.
Fernando Verassani LaureanoVale S/A, Diretoria de Reparação, Nova Lima, MG, Brazil.
Vitor Brognaro PimentaVale S/A, Diretoria de Reparação, Nova Lima, MG, Brazil.
Gabriel Negreiros SalomãoInstituto Tecnológico Vale, Belém, PA, Brazil. gabriel.salomao@itv.org.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigates the combined effects of geology, land use and land cover, hydrological seasonality, and disturbance history on the hydrogeochemistry of surface waters in the Paraopeba River Basin (PRB), located in Minas Gerais State, southeastern Brazil, and forming part of the São Francisco River Basin, a region characterized by high lithological complexity and intense anthropogenic pressure. A total of 264 sites were sampled during the dry season (2022) and 262 during the rainy season (2023), allowing an integrated assessment of spatial and temporal variability. Hydrochemical facies are predominantly mixed bicarbonate, with water chemistry mainly controlled by silicate weathering. Localized deviations toward Na, Cl and SO

Indexed as

Anthropogenic EffectsEnvironmental MonitoringRiversSeasonsWater Pollutants, ChemicalBrazilWater Pollutants, ChemicalAnthropogenic influenceGeochemical baselineHydrogeochemistryLithological controlSurface water quality

Identifiers

PMID42862425
PMCPMC13658292

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.