Toxic and Potentially Toxic Metals and Their Health Risks

A special issue of Environments (ISSN 2076-3298).

Deadline for manuscript submissions: 20 June 2026 | Viewed by 1312

Special Issue Editors


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Guest Editor
Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro 21941-598, Brazil
Interests: toxic metals; risk assessment; mercury; seafood; contamination

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Guest Editor
Federal Institute of Education, Science and Technology of Amazonas, Avenida 7 de Setembro, 1875-Center, Manaus, Brazil
Interests: fisiologia; aquicultura; produção animal; contaminação; ciência gastronômica; biologia; zoology

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Guest Editor
Institut National de la Recherche Scientifique, Quebec, QC, Canada
Interests: metal; biogeochemistry; aquatic toxicity; uptake; bioavailability; algae; ecotoxicology
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Special Issue Information

Dear Colleagues,

Whether terrestrial or aquatic, the environment is frequently the target of sources responsible for contaminating it. Among the contaminants are toxic and potentially toxic metals originating from natural and anthropogenic sources, which can cause harm to the health of the biota and the human population, both directly and indirectly. This Special Issue will include manuscripts that address the presence of these elements in environmental matrices, correlating them with the biota and/or human population, via direct exposure or through consumption, and the health risks. Studies with recent discoveries and trends and studies on metals have not yet been published by the scientific community. However, studies on aspects such as bioaccessibility, speciation, toxicology, bioremediation, rapid detection techniques, and tools applied to risk assessments are encouraged.

Dr. Paloma De Almeida Rodrigues
Prof. Dr. Adriano Oliveira
Prof. Dr. Claude Fortin
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Environments is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • toxic metals
  • risk assessment
  • bioaccessibility
  • food
  • contamination
  • toxicology

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Published Papers (1 paper)

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Research

15 pages, 623 KB  
Article
Prenatal Metal Exposure and Neurodevelopmental Changes in Children up to 18 Months of Age: PIPA Cohort Project, Rio de Janeiro
by Mônica Seefelder de Assis Araujo, Nataly Damasceno Figueiredo, Luz Claudio, Arnaldo Prata-Barbosa, Marlos Melo Martins, Volney Magalhães Camara and Carmen Ildes Rodrigues Froes Asmus
Environments 2026, 13(1), 21; https://doi.org/10.3390/environments13010021 - 1 Jan 2026
Viewed by 856
Abstract
Early exposure to toxic metals is a growing concern due to its potential neurodevelopmental effects in children. This study investigates whether exposure to multiple metals during pregnancy influences early developmental outcomes in children aged 12–18 months living in a metropolitan setting. We conducted [...] Read more.
Early exposure to toxic metals is a growing concern due to its potential neurodevelopmental effects in children. This study investigates whether exposure to multiple metals during pregnancy influences early developmental outcomes in children aged 12–18 months living in a metropolitan setting. We conducted a prospective cohort study in Rio de Janeiro that included 393 children from PIPA project. Umbilical cord blood samples obtained at birth were processed using ICP-MS (Inductively Coupled Plasma Mass Spectrometry) to quantify metals (arsenic, lead and mercury). The children’s neurodevelopment was assessed with the Denver-II tool. We applied logistic regression analyses to explore the relationship between metal concentrations and developmental outcomes, controlling for possible confounding variables. Higher prenatal arsenic levels were linked to poorer gross motor performance, both in continuous models (OR = 1.65; 95% CI: 1.09–2.51) and in subjects with concentrations above the 95th percentile (OR = 8.84; 95% CI: 2.40–32.61), this was consistent across multi-metal models. A negative relationship between Pb concentrations and gross motor delays was observed, with an estimated Odds Ratio of 0.49 (95% CI: 0.24–0.98). Hg exposure demonstrated no association with neurodevelopment in any model. However, the lack of postnatal arsenic exposure data limits the distinction between prenatal and early childhood effects. These findings underscore the need for the continued monitoring and investigation of combined metal exposures during pregnancy. Future studies integrating prenatal and postnatal exposure assessments are warranted. Full article
(This article belongs to the Special Issue Toxic and Potentially Toxic Metals and Their Health Risks)
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