Transfer of 7 Organic UV Filters from Sediment to the Ragworm Hediste diversicolor: Bioaccumulation of Benzophenone-3 and Further Proof of Octocrylene Metabolism

Organic UV filters are continuously released in aquatic ecosystems due to their widespread use, especially touristic coastal environments. Generally, organic poorly soluble water and tend accumulate the sediment compartment. This represents a conceivable risk for sediment-dwelling organisms potential transfer of up food chain. study aimed assess seven including benzophenone-3 (BP3), bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT), butyl methoxydibenzoylmethane (BM), methylene bis-benzotriazolyl tetramethylbutylphenol (MBBT), 2-ethylhexyl salicylate (ES), diethylhexyl butamido triazone (DBT), octocrylene (OC) from artificial spiked (10 µg.g?1 dry weight) worms. All were detected worms after 28 days exposure, but only BP3 was apparently bioaccumulated, with biota accumulation factor (BSAF) 12.38 ± 4.65. However, metabolomic profiling revealed that OC metabolized by into 11 fatty acid conjugates, demonstrating did also form OC–fatty conjugates. Here, sole quantification parent filter underestimated exposure organisms. In general, it is therefore important pair conventional method (BSAF calculus) other techniques, such as metabolomics, actual bioaccumulation xenobiotics transformed xenobiotics.