First investigation of per-and poly fluoroalkylsubstances (PFAS) in striped dolphin Stenella coeruleoalba stranded along Tuscany coast (north western Mediterranean Sea) Michele Mazzetti ARPAT, Italy Letizia Marsili University of Siena, Italy Sara Valsecchi CNR - IRSA, Water Research Institute, Italy Claudio Roscioli CNR - IRSA, Water Research Institute, Italy Stefano Polesello CNR - IRSA, Water Research Institute, Italy Paolo Altemura ARPAT, Italy Alessandro Voliani ARPAT, Italy Cecilia Mancusi ARPAT, Italy This is a section of Ninth International Symposium “Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques”(DOI: 10.36253/979-12-215-0030-1) by Laura Bonora, Donatella Carboni, Matteo De Vincenzi, Giorgio Matteucci Firenze University Press Firenze 2022 https://doi.org/10.36253/979-12-215-0030-1.69

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Per- and poly fluoroalkylsubstances (PFAS) were measured in liver,muscle, blood and brain of 26 stripped dolphin Stenella coeruleoalba stranded along Tuscany coasts (Italy), from 2020 to 2022. Using high performance liquid chromatography coupled with high resolution mass spectrometry 18 target were quantified in each sample. PFOS, PFHxS, FOSA were found in all samples with PFOS blood concentration level ranging from some tens to some hundreds of µg/kg. The concentrations follow the trend PFOS>FOSA>PFHxS and the PFOS concentration appears to be inversely proportional to the weight of the animals.

 Stenella coeruleoalba Strandings PFAS

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