title: Passive sampling coupled to ultraviolet irradiation: a useful analytical approach for studying oxygenated polycyclic aromatic hydrocarbon formation in bioavailable mixtures.
abstract: The authors investigated coupling passive sampling technologies with ultraviolet irradiation experiments to study polycyclic aromatic hydrocarbon (PAH) and oxygenated PAH transformation processes in real-world bioavailable mixtures. Passive sampling device (PSD) extracts were obtained from coastal waters impacted by the Deepwater Horizon oil spill and Superfund sites in Portland, Oregon, USA. Oxygenated PAHs were found in the contaminated waters with our PSDs. All mixtures were subsequently exposed to a mild dose of ultraviolet B (UVB). A reduction in PAH levels and simultaneous formation of several oxygenated PAHs were measured. Site-specific differences were observed with UVB-exposed PSD mixtures.
authors.affiliation: Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon, USA.
authors.forename: Norman D
authors.initials: ND
authors.lastname: Forsberg
authors.forename: Steven G
authors.initials: SG
authors.lastname: O'Connell
authors.forename: Sarah E
authors.initials: SE
authors.lastname: Allan
authors.forename: Kim A
authors.initials: KA
authors.lastname: Anderson
mesh_terms: D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D060851:Gulf of America; D009922:Oregon; D010100:Oxygen / Q000737:chemistry; D059392:Petroleum Pollution; D010782:Photolysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000737:chemistry / Q000528:radiation effects; D014466:Ultraviolet Rays; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry / Q000528:radiation effects
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical; D010100:Oxygen
keywords: Emerging contaminants; Oxy-PAH; Passive sampling; Photo-oxidation; Ultraviolet