Levels and distribution of polybrominated diphenyl ethers and organochlorine compounds in sea turtles from Japan

► First report on the detection of organohalogen compounds in sea turtles from Japan. ► PBDEs were ubiquitously present in all the turtle species. ► Organohalogen compounds in sea turtles varied between species. ► Concentrations of PCBs, DDTs and CHLs were the highest in all the turtle samples.