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Uptake of different organic pollutants by carrot
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1  Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU


In this study the uptake of different organic pollutants, including musk fragrances (tonalide and galaxolide), polybrominated diphenyl ethers (PBDEs), perfluorocarboxylic acids (PFCAs), perfluorosulfonic acids (PFSAs) and perfluorosulfonamide (FOSA) by carrot samples was compared. The bioconcentration factors (BCFs), defined as ratio of the concentration in the dry plant tissue and the concentration in the compost amended soils, were compared and correlation with the water solubility of the target compounds was studied. A good correlation was obtained between the water solubility and the BCFs in the different plant tissues (carrot root peel, root core and leaves). Besides, while the target analytes with the lowest solubility (musk fragrances and PBDEs) tended to accumulate in the peel of the carrot, the most water soluble target analytes (the perfluorinated compounds) tended to translocate to the carrot leaves.

Keywords: plant uptake; carrot; musk fragrances; polybrominated diphenyl ethers, perfluorocarboxylic acids; perfluorosulfonic acids; perfluorosulfonamide