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Chromium uptake in tolerant crops and its toxicological risk to human consumers in Mozambique.

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Title: Chromium uptake in tolerant crops and its toxicological risk to human consumers in Mozambique.
Authors: Machunguene Jr, Mário1 (AUTHOR) machunguenem@gmail.com, Guilundo, Sónia V.1 (AUTHOR), Oliveira, Palmira J.1 (AUTHOR), Ismail, Ismail M.1 (AUTHOR), Victorino, Rosalino D.1 (AUTHOR), Martins, Célia M.1 (AUTHOR), Oliveira, Rui S.2 (AUTHOR), Quilambo, Orlando A.1 (AUTHOR)
Source: Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering. 2025, Vol. 60 Issue 14, p779-791. 13p.
Subjects: Heavy-metal tolerant plants, Bioconcentration, Public health, Carcinoma, Poisons, Disease risk factors
Geographic Terms: Mozambique
Abstract: Chromium (Cr), classified by the International Agency for Research on Cancer (IARC) as a carcinogen, poses significant risks to human health. This study evaluated the uptake of Cr in Arachis hypogaea, Vigna unguiculata, and Zea mays cultivated in Cr-contaminated soils and assessed the associated toxicological risks to human consumers. A greenhouse experiment was conducted using soils contaminated with Cr at 10 and 30 mg kg−1. Chromium concentrations in soils and plant tissues were quantified using ICP-OES, and bioconcentration and translocation factors (TFs) were determined to assess Cr uptake and movement within the plants. The lifetime incremental cancer risk (ILCR) was determined to evaluate potential long-term health risks. Results showed that all three species accumulated significant amounts of Cr in roots and aerial tissues, with bioconcentration factors (BFs) greater than one in most treatments. However, TFs remained below or equal to one for most cases, indicating limited upward movement of Cr. Importantly, ILCR values were within permissible limits, suggesting no significant carcinogenic risk for consuming these crops. These findings indicate that A. hypogaea, V. unguiculata, and Z. mays are resistant to Cr contamination and can be safely cultivated and consumed in soils containing up to 30 mg kg−1 of Cr. This study provides valuable insights for ecotoxicological risks and for the safe management of Cr-contaminated agricultural soils in Mozambican industrial areas. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Chromium uptake in tolerant crops and its toxicological risk to human consumers in Mozambique.
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  Data: <searchLink fieldCode="AR" term="%22Machunguene+Jr%2C+Mário%22">Machunguene Jr, Mário</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> machunguenem@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Guilundo%2C+Sónia+V%2E%22">Guilundo, Sónia V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Oliveira%2C+Palmira+J%2E%22">Oliveira, Palmira J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ismail%2C+Ismail+M%2E%22">Ismail, Ismail M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Victorino%2C+Rosalino+D%2E%22">Victorino, Rosalino D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Martins%2C+Célia+M%2E%22">Martins, Célia M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Oliveira%2C+Rui+S%2E%22">Oliveira, Rui S.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Quilambo%2C+Orlando+A%2E%22">Quilambo, Orlando A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="DE" term="%22Heavy-metal+tolerant+plants%22">Heavy-metal tolerant plants</searchLink><br /><searchLink fieldCode="DE" term="%22Bioconcentration%22">Bioconcentration</searchLink><br /><searchLink fieldCode="DE" term="%22Public+health%22">Public health</searchLink><br /><searchLink fieldCode="DE" term="%22Carcinoma%22">Carcinoma</searchLink><br /><searchLink fieldCode="DE" term="%22Poisons%22">Poisons</searchLink><br /><searchLink fieldCode="DE" term="%22Disease+risk+factors%22">Disease risk factors</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Mozambique%22">Mozambique</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Chromium (Cr), classified by the International Agency for Research on Cancer (IARC) as a carcinogen, poses significant risks to human health. This study evaluated the uptake of Cr in Arachis hypogaea, Vigna unguiculata, and Zea mays cultivated in Cr-contaminated soils and assessed the associated toxicological risks to human consumers. A greenhouse experiment was conducted using soils contaminated with Cr at 10 and 30 mg kg−1. Chromium concentrations in soils and plant tissues were quantified using ICP-OES, and bioconcentration and translocation factors (TFs) were determined to assess Cr uptake and movement within the plants. The lifetime incremental cancer risk (ILCR) was determined to evaluate potential long-term health risks. Results showed that all three species accumulated significant amounts of Cr in roots and aerial tissues, with bioconcentration factors (BFs) greater than one in most treatments. However, TFs remained below or equal to one for most cases, indicating limited upward movement of Cr. Importantly, ILCR values were within permissible limits, suggesting no significant carcinogenic risk for consuming these crops. These findings indicate that A. hypogaea, V. unguiculata, and Z. mays are resistant to Cr contamination and can be safely cultivated and consumed in soils containing up to 30 mg kg−1 of Cr. This study provides valuable insights for ecotoxicological risks and for the safe management of Cr-contaminated agricultural soils in Mozambican industrial areas. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1080/10934529.2026.2623379
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 13
        StartPage: 779
    Subjects:
      – SubjectFull: Heavy-metal tolerant plants
        Type: general
      – SubjectFull: Bioconcentration
        Type: general
      – SubjectFull: Public health
        Type: general
      – SubjectFull: Carcinoma
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      – SubjectFull: Poisons
        Type: general
      – SubjectFull: Disease risk factors
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      – SubjectFull: Mozambique
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      – TitleFull: Chromium uptake in tolerant crops and its toxicological risk to human consumers in Mozambique.
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              Text: 2025
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