Contamination status of POPs and BFRs and relationship with parasitic infection in finless porpoises (Neophocaena phocaenoides) from Seto Inland Sea and Omura Bay, Japan

► BFRs and POPs in finless porpoises (Neophocaena phocaenoides) were determined. ► Levels of PCBs, DDTs and CHLs were higher than those of HCHs, HCB, PBDEs and HBCDs. ► Concentrations of BFRs and POPs in males increased with body length. ► Higher PCB levels were found in liver trematode infected individuals. ► This could imply relationship between contaminant levels and parasitic infection.