Evidence map›Paper›PMID 34398331›Full record

ArticleEnvironmental monitoring and assessment2021

Concentrations, sources, and exposure risk of polychlorinated biphenyls in soil profiles of the floodplain of the lower reaches of the River Niger, Nigeria.

Andrew E Aziza, Chukwujindu M A Iwegbue, Godswill O Tesi, Godwin E Nwajei, Bice S Martincigh

Abstract read
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In one paragraph

Article in Environmental monitoring and assessment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
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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

5 authors.

Andrew E AzizaDepartment of Chemistry, Delta State University, P.M.B. 1, Abraka, Nigeria.
Chukwujindu M A IwegbueDepartment of Chemistry, Delta State University, P.M.B. 1, Abraka, Nigeria. maxipriestley@yahoo.com.
Godswill O TesiDepartment of Chemical Sciences, University of Africa, Toru-Orua, Bayelsa State, Nigeria.
Godwin E NwajeiDepartment of Chemical Sciences, University of Africa, Toru-Orua, Bayelsa State, Nigeria.
Bice S MartincighSchool of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban, 4000, South Africa.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The concentrations of 28 polychlorinated biphenyls (PCBs) were determined in soils collected at three depths from thirteen different sites along the floodplain of the lower reaches of the River Niger (LRRN) in Nigeria. The aim of the study was to provide data on the levels of contamination, sources of the contaminants, and risks to the ecosystem and humans. Soil samples were Soxhlet extracted with a solvent mixture of dichloromethane (DCM)/n-hexane and cleaned up on a column packed with Florisil and silica gel. The PCBs in the samples were quantified by gas chromatography-mass spectrometry. The Ʃ28 PCB concentrations in the floodplain soils varied between not detected (nd) and 11,151 ng g

Indexed as

Polychlorinated BiphenylsSoil PollutantsWater Pollutants, ChemicalEcosystemEnvironmental MonitoringGeologic SedimentsHumansNigerNigeriaRiversSoilPolychlorinated BiphenylsSoilSoil PollutantsWater Pollutants, ChemicalFloodplain soilsNigeriaPolychlorinated biphenylsRisk assessmentRiver Niger

Identifiers

PMID34398331

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.