title: Effect of Söderberg smelting technology, anode paste composition, and work shift on the relationship between benzo[a]pyrene and individual polycyclic aromatic hydrocarbons.
abstract: This follow-up study of Farant and Gariepy study investigates the relationship between benzo[a]pyrene (B[a]P) and other polycyclic aromatic hydrocarbons (PAHs) found in coal tar pitch volatiles in two types of Soderberg aluminum smelters-horizontal and vertical stud. The study confirms the strong relationships between B[a]P and total PAHs, and that B[a]P was a good indicator for other PAHs in this industry. The PAH profiles were consistent within each smelter, but the smelter technology used and the changes in the raw material formulation resulted in significantly different profiles. B[a]P toxic equivalency factors for emitted PAH mixtures were greater in the horizontal stud smelter than in the vertical stud smelter. Overall, this study illustrates the potential usefulness of B[a]P relative abundance ratios to simplify exposure assessment in the workplace and reduce associated costs.
authors.affiliation: Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Montréal, Québec, Canada. eric.sanderson@mail.mcgill.ca
authors.forename: Eric
authors.initials: E
authors.lastname: Sanderson
authors.forename: Peter
authors.initials: P
authors.lastname: Kelly
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Farant
mesh_terms: D000535:Aluminum; D001564:Benzo(a)pyrene / Q000032:analysis*; D003031:Coal; D003363:Cost Control; D004784:Environmental Monitoring; D006801:Humans; D017745:Incineration; D007220:Industrial Waste; D008669:Metallurgy; D016273:Occupational Exposure; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D014835:Volatilization; D017132:Workplace
chemical_list: D003031:Coal; D007220:Industrial Waste; D011084:Polycyclic Aromatic Hydrocarbons; D001564:Benzo(a)pyrene; D000535:Aluminum