Publication:
Dioxin-like compounds bioavailability and genotoxicity assessment in the Gulf of Follonica, Tuscany (Northern Tyrrhenian Sea)

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Date
2018
Authors
Guidi, Patrizia
Corsolini, Simonetta
Bernardeschi, Margherita
Rocco, Lucia
Nigro, Marco
Baroni, Davide
Mottola, Filomena
Scarcelli, Vittoria
Santonastaso, Marianna
Falleni, Alessandra
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Elsevier
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Abstract
The Gulf of Follonica (Italy) is impacted by the chemical pollution from ancient mining activity and present industrial processes. This study was aimed to determine the bioavailability of dioxin-like compounds (DLCs) in coastal marine environment and to assess the genotoxic potential of waste waters entering the sea from an industrial canal. Moderately high levels of DCLs compounds (∑ PCDDs + PCDFs 2.18–29.00 pg/g dry wt) were detected in Mytilus galloprovincialis transplanted near the waste waters canal and their corresponding Toxic Equivalents (TEQs) calculated. In situ exposed mussels did not show any genotoxic effect (by Comet and Micronucleus assay). Otherwise, laboratory exposure to canal waters exhibited a reduced genomic template stability (by RAPD-PCR assay) but not DNA or chromosomal damage. Our data reveal the need to focus on the levels and distribution of DLCs in edible species from the study area considering their potential transfer to humans through the consumption of sea food.
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Keywords
DNA damage, RAPD-PCR, Cytome-Micronucleus assay, PCDDs/DFs, TEQs, PCBs
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