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<p>The present study was carried out to assess the occurrence and ecological risk assessment of 16 priority polycyclic aromatic hydrocarbons (PAHs) in the Budhabalanga river estuary and coastal stretch of Chandipur. The range of PAH concentration varied between 19.5 and 1206&#xa0;ng L<sup>−1</sup>. The ecological risk assessment of individual PAHs and ∑PAHs was calculated using the risk quotient and toxic equivalency factor method. Low molecular weight PAHs contributed towards ecological risk burden in comparison to high molecular weight PAHs. PAH diagnostic ratio suggested the presence of both pyrolytic and petrogenic origin for the observed PAHs. Pearson correlation and PCA plot clearly show interdependency between all PAHs and stations sampled.</p>

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Occurrence and Risk Assessment of Polycyclic Aromatic Hydrocarbons in the Surface Water of Budhabalanga River Estuary, Chandipur, East Coast of India

  • 期刊论文

  • 发表日期：

    2025年5月8日

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  • Subhashree Nayak,
  • Smruti Prajna Pradhan,
  • Pratyusha Nayak,
  • Sthitaprajna Nath Sharma,
  • Nishigandha Muduli,
  • Susri Nayak,
  • Lipika Patnaik

摘要

The present study was carried out to assess the occurrence and ecological risk assessment of 16 priority polycyclic aromatic hydrocarbons (PAHs) in the Budhabalanga river estuary and coastal stretch of Chandipur. The range of PAH concentration varied between 19.5 and 1206 ng L−1. The ecological risk assessment of individual PAHs and ∑PAHs was calculated using the risk quotient and toxic equivalency factor method. Low molecular weight PAHs contributed towards ecological risk burden in comparison to high molecular weight PAHs. PAH diagnostic ratio suggested the presence of both pyrolytic and petrogenic origin for the observed PAHs. Pearson correlation and PCA plot clearly show interdependency between all PAHs and stations sampled.