Biomarker responses in pelagic and benthic fish over 1 year following the Hebei Spirit oil spill (Taean, Korea)

► 1-OH pyrene levels in fish bile are elevated in the heavily oiled site. ► Induction of hepatic EROD activity is maintained in the spill site over a year. ► CYP1A mRNA and protein levels are elevated in the spill site over a year. ► Biliary 1-OH pyrene levels and biomarker response correlates significantly.