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  • Title: Polycyclic aromatic hydrocarbons in the sediments of the Gulfs of Naples and Salerno, Southern Italy: Status, sources and ecological risk.
    Author: Qu C, Li J, Albanese S, Lima A, Wang M, Sacchi M, Molisso F, De Vivo B.
    Journal: Ecotoxicol Environ Saf; 2018 Oct; 161():156-163. PubMed ID: 29879576.
    Abstract:
    This study investigated the spatial distribution, potential sources, and toxic effects of polycyclic aromatic hydrocarbons (PAHs) in the sediments of the Gulfs of Naples and Salerno (NaSa Gulfs), Southern Italy. The investigation focused on the coastal sea sediments of the Bagnoli brownfield site within the Gulf of Naples. The ∑16PAHs in the sediments of the NaSa Gulfs outside of the Bagnoli brownfield site have concentrations that ranged from 9.58 to 15,818 μg/kg, with a geometric mean (Gmean) of 234 μg/kg. High-molecular weight PAHs (HMW PAHs) contributed to over 80% of the ∑16PAHs. The concentration of ∑16PAHs in the Gulf of Naples was twice as high as that in Salerno (768 μg/kg and 317 μg/kg, respectively), and the ∑16PAHs levels in the Bagnoli brownfield site exceeded that in the NaSa Gulfs by over three orders of magnitude. The molecular distributions of PAHs studies suggested biomass/coal combustion as their main sources. Based on the analysis of the toxic equivalent quantity and sediment quality guideline quotient, the contamination of PAHs in sediments may pose significant toxicity and biological risks to marine organisms.
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