title: Pine Needles for the Screening of Perfluorinated Alkylated Substances (PFASs) along Ski Tracks.
abstract: Perfluorinated alkylated substances (PFASs) are today considered persistent, toxic, and bioaccumulative contaminants. Perfluorooctansulfonate (PFOS) and perfluorooctanoic acid (PFOA) are currently listed as priority substances under the UNEP global convention for the regulation of POPs. A previous study reported higher levels of PFASs in pine needles near ski areas. Their application as stain repellents in modern outdoor clothes and in ski waxes is assumed to be a potential source. Pine trees (Pinus mugo in Slovakia and Pinus sylvestris in Norway) were chosen for sampling in ski resorts. Relative distributions, overall concentrations, trend estimates, elevation patterns, and distance from primary sources were assessed. PFOA was the predominant PFAS constituent in pine needles from Slovakia (8-93%). In Norway, the most-abundant PFAS was perfluorobutanoic acid (PFBA: 3-66%). A difference in product composition (particularly in ski waxes) and differences in Norwegian and Slovakian regulations are considered to be the primary reason for these differences. Open application of PFOA in industry and products has been banned in Norway since 2011. The replacement of PFOA with short-chain substitutes is thus considered the reason for the observed pattern differences in the analyzed pine needles. Regular monitoring and screening programs are recommended.
authors.affiliation: Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University , Kamenice 753/5, Pavilion A29, 625 00 Brno, Czech Republic.
authors.forename: Mária
authors.initials: M
authors.lastname: Chropeňová
authors.affiliation: Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University , Kamenice 753/5, Pavilion A29, 625 00 Brno, Czech Republic.
authors.forename: Pavlína
authors.initials: P
authors.lastname: Karásková
authors.affiliation: Department of Chemistry, Biotechnology and Food Science (IKBM), Norwegian University of Life Sciences (NMBU) , P.O. Box 5003, Christian M. Falsens veg 1, NO-1432 Ås, Norway.
authors.forename: Roland
authors.initials: R
authors.lastname: Kallenborn
authors.affiliation: Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University , Kamenice 753/5, Pavilion A29, 625 00 Brno, Czech Republic.
authors.forename: Eva Klemmová
authors.initials: EK
authors.lastname: Gregušková
authors.affiliation: Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University , Kamenice 753/5, Pavilion A29, 625 00 Brno, Czech Republic.
authors.forename: Pavel
authors.initials: P
authors.lastname: Čupr
mesh_terms: D005466:Fluorocarbons / Q000032:analysis*; D009664:Norway; D028223:Pinus / Q000737:chemistry*; D018154:Slovakia
chemical_list: D005466:Fluorocarbons