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July 4, 2026Scientific ReportsOpen Access

Baseline assessment of sedimentary heavy metals and ecological risks in the high-siltation Gorai River, Bangladesh

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Authors

SSS. SantaMHMd Kamal HossainMMMd. Moniruzzaman

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Overview

Randomized trial assesses heavy metal pollution in Gorai River sediments, suggesting important ecological implications.

Key Points

  • This study aims to evaluate the spatial distribution and ecological risks of heavy metals in the Gorai River sediments.
  • Analyzed 10 heavy metals in surface sediments from 22 sampling points using grab sampling method.
  • Calculated pollution indices including contamination factor, enrichment factor, and pollutant load index.
  • Conducted source apportionment analyses to determine origins of heavy metals.
  • Mean concentrations revealed that Mn, Cu, and Ni levels exceeded Toxicity Reference Values.
  • Most heavy metals suggested mixed geogenic and anthropogenic origins, with Hg indicating localized contamination.
  • Risk indices indicated low pollution risks overall, though children showed sensitivity to As and Cr exposure.

Cite This Study

Santa et al. (2026) studied this question.

synapsesocial.com/papers/6a48a23989561a0c2d78d141https://doi.org/10.1038/s41598-026-48853-0
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