00714nam 2200157z- 450 9910712554003321(CKB)5470000002494612(EXLCZ)99547000000249461220230509c2019uuuu -u- -engAssessment of polycyclic aromatic hydrocarbon concentrations in southern Lake Powell, Glen Canyon National Recreation Area, Arizona and Utah, 2016-17U.S. Department of the Interior, U.S. Geological SurveyReston, VirginiaBOOK9910712554003321Assessment of polycyclic aromatic hydrocarbon concentrations in southern Lake Powell, Glen Canyon National Recreation Area, Arizona and Utah, 2016-173339269UNINA