Dear colleagues, We are pleased to announce our recent article published in the journal Environmental Pollution: .Aznar-Alemany, Ò., Giménez, J., de Stephanis, R., Eljarrat, E., & Barceló, D. (2017). Insecticide pyrethroids in liver of striped dolphin from the Mediterranean Sea. *Environmental Pollution*, *225*, 346-353. *Abstract*: Pyrethroid pesticides were analysed in liver of striped dolphin (*Stenella coeruleoalba*) from the Alboran Sea (south of Spain, Mediterranean Sea). The occurrence and bioaccumulation of pyrethroid insecticides in marine mammal tissues from the northern hemisphere had never been determined before. Pyrethroids were detected in 87% of the specimens with a mean total concentration of 300 ng g-1 lw ± 932 (range 2.7–5200 ng g-1 lw). Permethrin and tetramethrin were the main contributors to the pyrethroid profiles, with enantiospecific accumulation for the first and isomer specific accumulation for the latter. Bioaccumulation of pyrethroids was unlike that of persistent organic pollutants (POPs), as pyrethroid concentrations were not correlated to the maturity stage of the specimens. Concentrations slightly increased from calves to juveniles, whereas juveniles presented similar concentrations to adults. Metabolization of pyrethroids after achieving sexual maturity might account for this pattern. Article available at: http://www.sciencedirect.com/science/article/pii/S0269749117300945 or https://www.researchgate.net/profile/Joan_Gimenez2 Best Regards, Joan -- *Joan Giménez Verdugo* *PhD Student* *Severo Ochoa* Estación Biológica de Doñana (EBD-CSIC) Department of Conservation Biology Americo Vespucio Ave, s/n 41092 Sevilla (Spain) www.ebd.csic.es --- Research Gate: Joan Giménez <https://www.researchgate.net/profile/Joan_Gimenez2> Phone: +34 619 176 849 ü Please consider the environment before printing this E-mail