Evidence map›Paper›PMID 41981322›Full record

ArticleEnvironmental geochemistry and health2026

Copper extraction and phytotoxicity of organic acid leached mine tailings in Brassica napus.

Vinicius H De Oliveira, Sarah Duddigan, James Symons, Michael J Whelan, Vimalnath Selvaraj, Andrew P Abbott, Rich Crane, Gawen R T Jenkin, Mark Tibbett

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

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.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Vinicius H De OliveiraDepartment of Sustainable Land Management & Soil Research Centre, School of Agriculture Policy and Development, University of Reading, Reading, UK.
Sarah DuddiganDepartment of Geography & Environmental Science, University of Reading, Reading, UK.
James SymonsCentre for Sustainable Resource Extraction, University of Leicester, Leicester, UK.
Michael J WhelanCentre for Sustainable Resource Extraction, University of Leicester, Leicester, UK.
Vimalnath SelvarajCentre for Sustainable Resource Extraction, University of Leicester, Leicester, UK.
Andrew P AbbottSchool of Chemistry, University of Leicester, Leicester, UK.
Rich CraneCamborne School of Mines, Department of Earth and Environmental Sciences, University of Exeter, Exeter, UK.
Gawen R T JenkinCentre for Sustainable Resource Extraction, University of Leicester, Leicester, UK.
Mark TibbettDepartment of Sustainable Land Management & Soil Research Centre, School of Agriculture Policy and Development, University of Reading, Reading, UK. m.tibbett@reading.ac.uk.

Funding

Natural Environment Research Council NE/W000385/1
6 · The paper itself

Abstract

Mine tailings pose environmental hazards but can also contain economically valuable metals like copper (Cu). Organic solvents, particularly low molecular weight organic acids (LMWOAs), are natural and biodegradable acids with great potential for Cu removal and tailings remediation. We evaluated the potential of citric, malic, maleic, malonic and lactic acids (concentration of 1 M) in extracting Cu from legacy Cu-tailings, as well as their phytotoxicity risk. Brassica napus was grown in tailings leached by LMWOAs at three dilutions (1/4, 1/16, 1/128) to simulate solvent biodegradation or dilution by rainfall. Plant height, biomass, chlorophyll, shoot green cover and leachate metal concentrations (Al, Ca, Cu, Fe, K, Mg, Mn, V, Zn) were measured; deionised water was used as a control. At 1/4 dilution, citric, malic, and malonic acids generated the highest Cu concentrations in leachate (625-965 mg L

Indexed as

Brassica napusCopperMiningSoil PollutantsBiodegradation, EnvironmentalBiomassCitric AcidCitric AcidCopperSoil PollutantsCitrateEcotoxicityHeavy metalsLMWOAsRemediation

Identifiers

PMID41981322
PMCPMC13079549

What OpenQuestion holds

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Registered trials

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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.