Biochemical Responses of Mytilus galloprovincialis to Individual and Binary Exposures to PFDoA, Bisphenol A and Tricresyl Phosphate: Exposure and Post-exposure Dynamics.

Mytilus galloprovincialis exhibits persistent biochemical alterations after 14 days of exposure to BPA, PFDoA, TCP, and their binary mixtures, with some responses only partially reversible.

• Why it matters: Understanding the persistence of biochemical responses in mussels is crucial for assessing long-term ecological risks of contaminant exposure, especially since recovery dynamics are not well characterized.
• What they did: The study exposed mussels to BPA, PFDoA, and TCP individually and in binary mixtures at 20 ng/L each for 14 days, then assessed biochemical biomarkers immediately after exposure and after a 14-day recovery in uncontaminated seawater.
• The result: Some responses, such as lower aerobic capacity and elevated lipid peroxidation, persisted or intensified after recovery, indicating limited reversibility, which underscores the importance of including post-exposure periods in ecotoxicological evaluations.