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July 4, 2026Archives of Environmental Contamination and ToxicologyOpen Access

Large-Scale Monitoring and Risk Assessment of Metal Contamination from Urban Areas in the Amazon River Basin

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Authors

ABAlexéia BarufattiUniversidade Federal da Grande DouradosAWAndrea V. WaichmanUniversidade Federal do AmazonasRORhaul OliveiraUniversidade Estadual de Campinas (UNICAMP)

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Implication

Comprehensive assessment shows elevated metal concentrations in urban areas, indicating significant ecological risks.

Key Points

  • Assess metal contamination levels in the Amazon River and tributaries, focusing on urban areas.
  • Conducted monitoring across 40 sampling sites
  • Analyzed concentrations of As, Cd, Cu, Cr, Fe, Mn, Pb, Ni, and Zn in water
  • Performed ecological risk assessment using species sensitivity distributions
  • Fe levels exceeded water quality standards in urban areas, particularly Manaus, Macapá, and Belém
  • Chronic risk values indicated up to 72% of species potentially affected in urban locations
  • Cu, Zn, and Mn identified as primary contributors to chronic toxicity, with notable elevations in Manaus and Macapá

Cite This Study

Barufatti et al. (2026) studied this question.

synapsesocial.com/papers/6a48a3cb89561a0c2d78d91ahttps://doi.org/10.1007/s00244-026-01206-4
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