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Polycyclic aromatic hydrocarbons and ecotoxicological characterization of seawater, sediment, and mussel Mytilus galloprovincialis from the Gulf of Rijeka, the Adriatic Sea, Croatia.

Abstract：

:The pattern of spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in seawater, sediment, and mussels, potential toxicity of different matrices, and mussel anoxic survival from six sampling sites of the Gulf of Rijeka, the Adriatic Sea, Croatia was examined. The total concentrations of 10 PAHs vary from below detection limit to 305 ng/L in seawater, from 213 to 695 microg/kg dry weight in sediment and from 49.2 to 134 ng/g wet weight in mussel tissue. Combustion is the principal source of PAH contamination in seawater and sediment samples. Sediment samples are distinguished from the majority of seawater and mussel samples by the presence of high molecular weight PAHs, whereas mussels from majority of sampling sites tend to accumulate PAHs of lower molecular weight. The PAH dynamic between different matrices is complex and site specific. Toxicity of seawater and sediment organic extract is correlated with PAH content, indicating that PAHs are the predominant toxic compounds. There is no correlation between toxicity of mussel biological fluids and toxicity of seawater and sediment, or between toxicity of mussel biological fluid and PAH content in mussel, seawater, or sediment. There is a positive correlation between potential toxicity of mussel biological fluids and reduction of anoxic survival time. Mussel anoxic survival is influenced by the presence of complex mixture of toxic contaminants, not only PAHs. The relationship between PAH contents in different marine matrices and their ability to affect mussels revealed specific interactions between an organism and complex mixture of toxic contaminants present in the marine environment.

journal_name

Arch Environ Contam Toxicol

journal_title

Archives of environmental contamination and toxicology

authors

Bihari N,Fafandel M,Piskur V

doi

10.1007/s00244-005-0259-5

subject

Has Abstract

pub_date

2007-04-01 00:00:00

pages

379-87

issue

eissn

0090-4341

issn

1432-0703

journal_volume

pub_type

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Polycyclic aromatic hydrocarbons and ecotoxicological characterization of seawater, sediment, and mussel Mytilus galloprovincialis from the Gulf of Rijeka, the Adriatic Sea, Croatia.