کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5745784 | 1618781 | 2018 | 5 صفحه PDF | دانلود رایگان |
- The uptake of waterborne 4-MBC, BP-4 and OC was very rapid after only 24 h of exposure to 1 μ Lâ1.
- Bioconcentration factor (BCF) was calculated for OC and BP-4.
- BP-3 showed a low accumulation in marine mussels.
- OD-PABA not tends to accumulate in biota due to their high capacity for elimination in mussels.
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 Lâ1, the tissular concentrations were 418, 263 and 327 μg kgâ1d.w., respectively. The kinetics of bioaccumulation of BP-4 and OC significantly fitted to an asymptotic model with BCF values of 905 L kgâ1 and 2210 L kgâ1, 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.
Journal: Chemosphere - Volume 190, January 2018, Pages 267-271