Results from the sampling of per- and polyfluoroalkyl substances (PFAS) in Pacific lamprey collected along the Oregon and Washington coasts and from the Deschutes River, Oregon, United States, 2017-2021

This data release represents data on the presence and distribution of per- and polyfluoroalkyl substances (PFAS) in Pacific lamprey (Entosphenus tridentatus), which are culturally and ecologically important fish in the Pacific Northwest. Parasitic ocean-going juvenile Pacific lamprey were collected along the Oregon and Washington coast during May through October, 2017 and adult Pacific lamprey were collected in the Deschutes River in Oregon during August, 2021. In total, 31 Pacific lamprey samples were analyzed for 50 target PFAS compounds.