期刊
MARINE ENVIRONMENTAL RESEARCH
卷 66, 期 1, 页码 217-219出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2008.02.062
关键词
mercury; bioavailability; Mytilus galloprovincialis; Mullus barbatus; genotoxicity; human health risk; priolo petrochemical site
An ecotoxicological investigation has been carried in the petrochemical district of Priolo (Sicily, Italy), one of the largest in Europe. Results indicated a severe mercury contamination in sediments sampled near a chloro-alkali plant. A clear bioavailability of this element was demonstrated in mussels Mytilus galloprovincialis (both native and translocated) and the benthic fish Mullus barbatus, which also exhibited marked genotoxic damages. The elevated mercury concentrations in marine organisms are a serious concern for human health; according to the national average fish consumption, the provisional tolerable weekly intake (PTWI) of Hg would be easily exceeded by at least 4 to 12 fold. Such toxicological risk is of particular importance for pregnant women, being possibly involved in the elevated frequency of neonatal malformations. (C) 2008 Elsevier Ltd. All rights reserved.
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