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May 16, 2026Geosystems and GeoenvironmentOpen Access

Geochemical fractionation and environmental risks of selected heavy metals in waste-impacted soils: Sequential extraction, mobility indices, and implications for a sustainable environment

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Authors

BUBassey U. UdoUniversity of UyoNUNdifreke I. UdosenAkwa Ibom State UniversityUAUdeme S. AkpanUniversity of Uyo

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Implication

Randomized trial assesses environmental risks of heavy metals in soils, suggesting management strategies for sustainability.

Key Points

  • This work investigates the geochemical speciation and mobility of heavy metals in municipal waste-impacted soils to assess environmental risks.
  • Soil samples were collected from three depth profiles in waste-disposal systems.
  • Sequential extraction was used to analyze six geochemical forms of metals.
  • Metal mobility indices were evaluated to assess potential risks associated with heavy metals.
  • Cd and Pb are identified as major sources of environmental hazards.
  • Metal mobility decreases with depth, showing that surface layers have higher metal bioaccumulation.
  • Metal mobility indices prioritize Cd > Pb > V > Ni > Cr in terms of risk.

Cite This Study

Udo et al. (2026) studied this question.

synapsesocial.com/papers/6a080a29a487c87a6a40c0b4https://doi.org/10.1016/j.geogeo.2026.100536
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Waste Fingerprints in Soils: A Study of the Influence of Wastes on the Concentrations of Selected Heavy Metals in Soils Underlying Open Dumpsites2025 · 2 citations
  2. 2Comprehensive geochemical characterization and multi-index ecotoxicological appraisal of heavy metal contamination in soils impacted by open waste disposal practices2026 · 1 citations
  3. 3Global Environmental Geochemistry and Molecular Speciation of Heavy Metals in Soils and Groundwater from Abandoned Smelting Sites: Analysis of the Contamination Dynamics and Remediation Alternatives in Karst Settings2025 · 18 citations
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  5. 5Prospecting the engineered environmental carbon sinks and ensuring long-term sustainability of karst areas impacted by heavy metal2025 · 10 citations