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Organochlorine Compounds (Polychlorinated Biphenyls and Pesticides) and Polycyclic Aromatic Hydrocarbons in Populations of Hexaplex Trunculus Affected by Imposex in the Lagoon of Venice, Italy

Organochlorine Compounds (Polychlorinated Biphenyls and Pesticides) and Polycyclic Aromatic Hydrocarbons in Populations of Hexaplex Trunculus Affected by Imposex in the Lagoon of Venice, Italy

Chiara Maran, Elena Centanni, Francesca Pellizzato, Bruno Pavoni

Environ Toxicol Chem. 2006 Feb;25(2):486-95.

PMID: 16519310

Abstract:

Concentrations of polychlorinated biphenyls (PCBs), organochlorine pesticides, and polycyclic aromatic hydrocarbons (PAHs) were measured in gastropods from the Lagoon of Venice, Italy. The visceral coil and the rest of the soft body of organisms (Hexaplex trunculus) sampled at two stations inside the lagoon and three stations on the seaward side were analyzed to evaluate their contamination levels. Preferential accumulation of PCBs and pesticides in the visceral coil (>80%) compared with the rest of the soft body was observed, whereas on average, PAHs showed no preferential partitioning. Differences between levels of organochlorine contaminants in the gastropods highlighted a gradient of pollution from the stations inside the lagoon (PCBs, 45-363 ng/g; pesticides, 4-51 ng/g) to the sea (PCBs, 13-131 ng/g; pesticides, 2-29 ng/g). The possible role of the three classes of contaminants, in addition to that of organotin compounds (OTCs), previously analyzed in the same samples, in causing one of the anatomic modifications because of imposex in this gastropod also was studied. A modeling approach by partial least squares (PLS) in latent variables was applied to explain the penis length of imposex-affected females with concentrations of organic pollutants. The synergistic role of PCBs, pesticides, and OTCs was evidenced, whereas the contribution of PAHs appeared to be very low.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AS2121362	Low Level Pesticides 2			Price

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