Evidence map›Paper›PMID 39212818›Full record

ArticleBiological trace element research2025

Follow-up Biomonitoring Study of Metal Exposure in Apprentice Welders in Montreal, Quebec, During Gas Metal Arc Welding (GMAW).

Jairo Buitrago-Cortes, Philippe Sarazin, Denis Dieme, Jonathan Côté, Capucine Ouellet, Naïma El Majidi, Michèle Bouchard

Abstract read
PubMed Publisher
In one paragraph

Article in Biological trace element research, 2025. 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

7 authors.

Jairo Buitrago-CortesDepartment of Environmental and Occupational Health, Chair in Toxicological Risk Assessment and Management, and Public Health Research Center (CReSP), University of Montreal, Roger-Gaudry Building, U424, Main Station, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada.
Philippe SarazinChemical and Biological Hazards Prevention, Institut de Recherche Robert-Sauvé en santé et en sécurité du travail du Québec, 505 Boulevard de Maisonneuve O, Montréal, QC, H3A 3C2, Canada.
Denis DiemeDepartment of Environmental and Occupational Health, Chair in Toxicological Risk Assessment and Management, and Public Health Research Center (CReSP), University of Montreal, Roger-Gaudry Building, U424, Main Station, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada.
Jonathan CôtéDepartment of Environmental and Occupational Health, Chair in Toxicological Risk Assessment and Management, and Public Health Research Center (CReSP), University of Montreal, Roger-Gaudry Building, U424, Main Station, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada.
Capucine OuelletChemical and Biological Hazards Prevention, Institut de Recherche Robert-Sauvé en santé et en sécurité du travail du Québec, 505 Boulevard de Maisonneuve O, Montréal, QC, H3A 3C2, Canada.
Naïma El MajidiDepartment of Environmental and Occupational Health, Chair in Toxicological Risk Assessment and Management, and Public Health Research Center (CReSP), University of Montreal, Roger-Gaudry Building, U424, Main Station, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada.
Michèle BouchardDepartment of Environmental and Occupational Health, Chair in Toxicological Risk Assessment and Management, and Public Health Research Center (CReSP), University of Montreal, Roger-Gaudry Building, U424, Main Station, P.O. Box 6128, Montreal, QC, H3C 3J7, Canada. michele.bouchard@umontreal.ca.

Funding

Institut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail 2019-0003
6 · The paper itself

Abstract

Welding activities are known to expose workers to metal fumes, but few studies have focused on assessing the internal exposure of apprentices in learning environments. This study aimed at determining internal doses of metals in apprentices performing gas metal arc welding (GMAW) during their training course. A total of 85 apprentice welders were assessed, and multi-elements were measured in urine, hair, fingernail, and toenail samples collected at the beginning of the program, and at the beginning and end of GMAW practical training. Concentrations of welding fumes and metals were also determined in personal respirable air samples. Serial measurements of metal concentrations in urine and hair, which reflect more recent exposure, showed an increase in arsenic (As), chromium (Cr), iron (Fe), and manganese (Mn) (and to a lesser extent nickel (Ni)) levels at the end of the GMAW process. Metal concentrations in fingernails and toenails showed a time-dependent increase in Fe, Mn, and Ni (and to a lesser extent cobalt (Co)) levels, reflecting cumulative exposure. Levels of Mn and Fe were high in personal air samples with respective median concentrations (95th percentiles) of 21 (300) and 230 (1900) µg/m

Indexed as

Air Pollutants, OccupationalBiological MonitoringMetalsOccupational ExposureWeldingAdultFollow-Up StudiesHairHumansMaleManganeseNailsQuebecAir Pollutants, OccupationalManganeseMetalsApprenticesBiomonitoringExposureGas metal arc welding (GMAW)MetalsWelding fumes

Identifiers

PMID39212818

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.