ArticleOpen veterinary journal2026
Environmental evaluation of PAH bioaccumulation in common sea bream (
Article in Open veterinary journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
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Abstract
Background: Polycyclic aromatic hydrocarbons (PAHs) are widespread persistent organic pollutants in coastal environments, posing a global concern because of their toxic, mutagenic, and carcinogenic effects on marine ecosystems and food safety. Aim: This study investigates the occurrence, bioaccumulation patterns, and ecological impacts of PAHs in seawater and tissues of Methods: PAH concentrations were measured in water and fish tissues (gill and liver). Correlation analysis and principal component analysis were used to identify potential contamination sources, and findings were compared with regional benchmarks and European Food Safety Authority safety thresholds. Results: The water samples revealed variable PAH levels, with Benzo[ghi]perylene exhibiting the highest concentration (11.866 ppb), followed by Benzo[b]fluoranthene (2.941ppb) and Benzo[a]anthracene (2.914ppb). Moderate levels of other high-molecular-weight PAHs. In fish tissues, PAHs were more concentrated in the liver than in the muscles, with BghiP levels ranging from 12 to 15 ppb, indicating significant bioaccumulation. Correlation analysis suggested that the primary source of heavier PAHs was thermal decomposition-likely from ship wastes and fuel combustion, whereas lighter PAHs were attributed to petroleum-related input. Histopathological examination revealed focal hepatitis in the liver, marked by leukocyte infiltration and hepatocellular degeneration. Gill tissue exhibited severe lesions, including inflammation, epithelial hyperplasia, and early lamellar fusion, highlighting the detrimental effects of environmental pollutants on fish health. Conclusion: Comparative analysis with regional data indicates that Benghazi Port experiences moderate PAH contamination. Although bioaccumulation was observed in
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