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Bioaccumulation of UV filters in Mytilus galloprovincialis mussel
- Vidal-Liñán, Leticia, Villaverde-de-Sáa, Eugenia, Rodil, Rosario, Quintana, José Benito, Beiras, Ricardo
- Chemosphere 2018 v.190 pp. 267-271
- Mytilus galloprovincialis, UV filters, bioaccumulation, biotransformation, hydrophilicity, models, mussels, risk
- In this study the bioaccumulation kinetics of organic UV filters, such as 4-MBC, BP-3, BP-4, OC and OD-PABA in wild Mytilus galloprovincialis mussels was investigated. The uptake and accumulation of waterborne 4-MBC, BP-4 and OC was very rapid, and after only 24 h of exposure to 1 μg L⁻¹, the tissular concentrations were 418, 263 and 327 μg kg⁻¹d.w., respectively. The kinetics of bioaccumulation of BP-4 and OC significantly fitted to an asymptotic model with BCF values of 905 L kg⁻¹ and 2210 L kg⁻¹, respectively. Measured bioaccumulation of the hydrophilic chemical BP-4 was much higher than predicted by Kₒw-based bioconcentration models, which would lead to a marked underestimation of actual risk. On the other hand, the patterns of uptake found for BP-3 and OD-PABA suggest biotransformation ability of mussels for these two chemicals.