Publisher: Springer Nature
Title: Occurrence, source identification and risk assessment of polybrominated diphenyl ethers in water and sediments of Osun River, Nigeria
Author: Abiodun O. Adegunwa, Odunayo T. Ore, Adeniyi S. Tayo, Festus M. Adebiyi
Date of Publication: 2024
Type: Journal Article (Research Open Access)
Volume: 1:6
Citation style language: Not explicitly mentioned
Pollution Type:

• Polybrominated diphenyl ethers (PBDEs)

• Persistent Organic Pollutants (POPs)
  
  

• Impact Dimension:

• Adverse public health risks

• Ecological risks to non-target organisms

• Bioaccumulation/biomagnification in aquatic food chains

• Threats to humans and ecosystems

• Neural developmental disorders

• Cardiovascular injury

• Thyroid hormone disorders

• Endothelial dysfunction

• Liver deiodinase inhibition
  
  

• Actor Type:

• Researchers/Authors

• Policymakers/environmental regulators

• Public/Humans

• Aquatic organisms

• Microorganisms
  
  

• Response Type:

• Development of cost-effective remediation

• Pollutant monitoring in water/sediments

• Creation of mitigation laws

• Further bioaccumulation studies

• Continuous river pollution assessment
  
  

• Evidence Type:

• GC-MS quantification (water/sediment extracts)

• Statistical analysis (mean, SD, ANOVA)

• Pearson correlation matrix

• Risk Quotient (RQ) calculations (Federal Sediment Quality Guidelines)

• Comparison with Federal Environmental Quality Guidelines
  
  

• Policy Mention:

• Federal Sediment/Environmental Quality Guidelines

• Inclusion of octa-/penta-/deca-BDE in POPs list

• PBDE phase-out in industrial production

• Proscription of penta-BDE

• Canadian Environmental Protection Act (1999)
  
  

• Key Finding:

• Water: Dominant BDE-28 (0.057 mg/L w.w); BDE-99/183/209 undetected

• Sediment: Dominant BDE-100 (0.184 mg/kg d.w); higher-BDEs more abundant

• Commercial deca-BDE identified as primary source

• Tri-BDE dominated water (＞42%); Penta-/hexa-BDE dominated sediment

• Water concentrations exceeded limits for tri-/tetra-/penta-/hexa-BDE

• Ecological risks: High (tri-, tetra-, penta-, deca-BDE; RQ > 1); Medium (hexa-BDE; 0.1 ≤ RQ ≤ 1)
  
  

• Health Risk Projection:

• PBDE levels in water exceed safety limits

• Linked to neural disorders, cardiovascular injury, thyroid dysfunction, endothelial/liver damage
  
  

• URL: https://doi.org/10.1186/s44329-024-00006-2
  DOI: 10.1186/s44329-024-00006-2
  ISBN, ISSN, PMID: Not explicitly mentioned