Bioaccumulation of heavy metals in fish, crustaceans, molluscs and echinoderms from the Tuscany coast

Ecotoxicology and Environmental Safety
Maria BonsignoreMario Sprovieri

Abstract

The concentration of As, Cd, Cr, Cu, Hg, Ni, Pb and Zn were analyzed in the edible part of several species of fish, crustaceans, molluscs and echinoderms collected in sensitive areas of the Tuscany coast (northern Italy). The concentration of As (0.39-78.1 μg g-1) and Hg (0.01-1.56 μg g-1) resulted in most cases higher than reference thresholds. Target hazard quotient (THQ) and lifetime cancer risk (TR) indexes were calculated to assess cancer and non-cancer risk due to oral exposure; the highest THQ values referred to As and Hg, with values ≥ 1 in 39% and 48% of cases, respectively. Total target hazard quotients (TTHQ) values suggested that the local population could experience adverse health effects due to consumption of local seafood, mainly of demersal and benthic species. Cancer risk was mainly associated with As exposure, and with Cd intake, especially through molluscs consumption. The NMDS model highlighted species specific bioaccumulation processes and specific sensitivity of species to different bioavailable heavy metals. Specifically, Mullus spp. and Scorpaena porcus preferentially accumulate Hg and Cr, Octopus vulgaris specimens were discriminated by the presence of Pb and Zn, while an evident preference for Cd and C...Continue Reading

Citations

Feb 14, 2019·Environmental Science and Pollution Research International·Trevor DubeTinashe Muteveri
Nov 16, 2019·Bulletin of Environmental Contamination and Toxicology·Aaron J SpechtMarc G Weisskopf
Sep 28, 2018·Environmental Geochemistry and Health·S B SujithaClaudia J Hernández-Camacho
Apr 23, 2020·Environmental Science and Pollution Research International·Xueli WangChaozheng Zhang
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Mar 9, 2019·International Journal of Environmental Research and Public Health·Nikolaos StamatisArgyris Kallianiotis
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May 24, 2021·Environmental Science and Pollution Research International·Murat YabanlıHatice Hasanhocaoğlu Yapıcı
Aug 18, 2021·Toxicology and Applied Pharmacology·Francesca PellicanòSimona Panunzi

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