Evidence map›Paper›PMID 39414997›Full record

ArticleJournal of exposure science & environmental epidemiology2025

Human biomonitoring of essential and toxic trace elements (heavy metals and metalloids) in urine of children, teenagers, and young adults from a Central European Cohort in the Czech Republic.

Brij Mohan Sharma, Klára Komprdová, Katarína Lörinczová, Jan Kuta, Petra Přibylová, Martin Scheringer, Ludmila Šebejová, Pavel Piler, Martin Zvonař, Jana Klánová

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Article in Journal of exposure science & environmental epidemiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Molybdenum-Closing the gap.JPGN reports · 2026
    Article
  5. Article
  6. A Heavy Metal and Trace Element Biomonitoring Study in a Young Cohort (Aged 18-24) in Istanbul, Turkey.International journal of environmental research and public health · 2026
    Article
  7. Article
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

10 authors.

Brij Mohan SharmaRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Klára KomprdováRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic. klara.komprdova@recetox.muni.cz.ORCID http://orcid.org/0009-0002-5884-3855
Katarína LörinczováRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Jan KutaRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Petra PřibylováRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Martin ScheringerRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Ludmila ŠebejováRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Pavel PilerRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Martin ZvonařRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Jana KlánováRECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExposure to toxic trace elements, which include metals and metalloids, can induce adverse health effects, including life-threatening diseases. Conversely, essential trace elements are vital for bodily functions, yet their excessive (or inadequate) intake may pose health risks. Therefore, identifying levels and determinants of exposure to trace elements is crucial for safeguarding human health.

methodsThe present study analyzed urinary concentrations of 14 trace elements (arsenic, cadmium, cobalt, chromium, copper, mercury, manganese, molybdenum, nickel, lead, antimony, selenium, thallium, and zinc) and their exposure determinants in 711 individuals, spanning from children to young adults from a Central European population from the Czech Republic. Multivariate linear regression and non-parametric Kruskal-Wallis ANOVA were used to investigate exposure determinants. Estimates of 95th percentile concentrations and confidence intervals were carried out to establish reference values (RV

resultsYoung adults showed elevated toxic element concentrations, whereas children exhibited higher concentrations of essential elements. Mercury concentrations were associated with both dental amalgam filling count and seafood intake; arsenic concentrations were associated with seafood, rice, and mushroom consumption. Mushroom consumption also influenced lead concentrations. Sex differences were found for cadmium, zinc, nickel, and cobalt. Between 17.9% and 25% of the participants exceeded recommended GV for arsenic, while 2.4% to 2.8% exceeded GV for cadmium. Only one participant exceeded the GV for mercury, and none exceeded GVs for chromium and thallium. Essential trace elements' GVs were surpassed by 38% to 68.5% participants for zinc, 1.3% to 1.8% for molybdenum, and 0.2% to 0.3% for selenium. IMPACT: The present study examines trace element exposure in a Central European population from the Czech Republic, unveiling elevated exposure levels of toxic elements in young adults and essential elements in children. It elucidates key determinants of trace element exposure, including dietary and lifestyle indicators as well as dental amalgam fillings. Additionally, the study establishes novel reference values and a comparison with established health-based human biomonitoring guidance values, which are crucial for public health decision-making. This comprehensive biomonitoring study provides essential data to inform public health policies and interventions.

Indexed as

Biological MonitoringEnvironmental ExposureMetalloidsMetals, HeavyTrace ElementsAdolescentChildChild, PreschoolCohort StudiesCzech RepublicFemaleHumansMaleYoung AdultMetalloidsMetals, HeavyTrace ElementsHeavy metalsHuman biomonitoringHuman exposureTrace elementsUrine

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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.