Perfluorinated alkyl substances (PFASs) in household dust in Central Europe and North America.
Concentrations of 20 perfluorinated alkyl substances (PFASs) were measured in dust samples from 41 homes in Canada, the Czech Republic, and United States in the spring-summer of 2013. The most frequently detected compounds were perfluorohexanoic acid (PFHxA) and perfluorooctane sulfonate (PFOS). PFOS and perfluorooctanoic acid (PFOA) had the highest concentrations of PFASs in all countries. PFOS median concentrations for the three countries were between 9.1 and 14.1ng/g, and PFOA medians ranged between 8.2 and 9.3ng/g. In general, concentrations in North America were higher than in the Czech Republic, which is consistent with usage patterns. No differences were found for perfluorooctane sulfonamides/sulfonamidoethanols (FOSA/Es) levels due to the low number of detections. Homologue profiles suggest that the shift from longer to shorter chain PFASs is more advanced in North America than in Europe. Significant relationships were found among individual homologues and between PFAS concentrations in dust and type of floor, number of people living in the house, and building age.
Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/3, 625 00 Brno, Czech Republic.
Pavlína
P
Karásková
School of Public and Environmental Affairs, Indiana University, 702 N. Walnut Grove Ave., Bloomington, IN 47405, USA. Electronic address: mvenier@indiana.edu.
Marta
M
Venier
Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/3, 625 00 Brno, Czech Republic. Electronic address: melymuk@recetox.muni.cz.
Lisa
L
Melymuk
Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/3, 625 00 Brno, Czech Republic.
Jitka
J
Bečanová
Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/3, 625 00 Brno, Czech Republic.
Šimon
Š
Vojta
Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/3, 625 00 Brno, Czech Republic.
Roman
R
Prokeš
Department of Earth Sciences, University of Toronto, 22 Russell Street, Toronto, Ontario M5S 3B1, Canada.
Miriam L
ML
Diamond
Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/3, 625 00 Brno, Czech Republic.
Jana
J
Klánová
D000328:Adult; D017738:Alkanesulfonic Acids / Q000032:analysis*; D002170:Canada; D002675:Child, Preschool; D018153:Czech Republic; D004391:Dust / Q000032:analysis*; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D005466:Fluorocarbons / Q000032:analysis*; D006798:Housing; D006801:Humans; D014481:United States
D017738:Alkanesulfonic Acids; D004391:Dust; D004785:Environmental Pollutants; D005466:Fluorocarbons
House dust; Indoor environment; PFASs; Perfluorinated compounds