Evidence of large-scale deposition of airborne emissions of per- and polyfluoroalkyl substances (PFASs) near a fluoropolymer production plant in an urban area.
Air dispersion
Fluoropolymer facility
Outdoor dust
Per- and polyfluoroalkyl substance (PFAS)
Soil contamination
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
received:
22
03
2023
revised:
31
05
2023
accepted:
01
07
2023
medline:
24
7
2023
pubmed:
7
7
2023
entrez:
6
7
2023
Statut:
ppublish
Résumé
Airborne emissions of per- and polyfluoroalkyl substances (PFASs) from fluoropolymer manufacturing facilities-especially those producing polyvinylidene (PVDF)-have rarely been investigated. Once PFASs are released into the air from the facility stacks, they settle in the surrounding environment, contaminating all surfaces. Human beings living in close proximity to these facilities can be exposed through air inhalation and ingestion of contaminated vegetables, drinking water or dust. In this study, we collected nine surface soil and five outdoor settled dust samples within 200 m of the fence line of a PVDF and fluoroelastomer production site near Lyon (France). Samples were collected in an urban area including a sports field. High concentrations of long-chain perfluoroalkyl carboxylic acids (PFCAs) (C ≥ 9) were found at sampling points downwind of the facility. Perfluoroundecanoic acid (PFUnDA) was the predominant PFAS in surface soil (12-245 ng/g dw), whereas perfluorotridecanoic acid (PFTrDA) was in outdoor dust (<0.5-59 ng/g dw). The PFAS profiles observed in soil and dust samples very likely originate from the processing aids used for PVDF and fluoroelastomer production. To our knowledge, long-chain PFCA concentrations as high as reported herein have never been found outside the perimeter fencing of a fluoropolymer plant. PFAS concentrations in other environmental compartments (such as air, vegetables or groundwater) should be monitored to assess all potential pathways to exposure of nearby residents before carrying out human biomonitoring.
Identifiants
pubmed: 37414291
pii: S0045-6535(23)01674-0
doi: 10.1016/j.chemosphere.2023.139407
pii:
doi:
Substances chimiques
perfluorotridecanoic acid
0
polyvinylidene fluoride
24937-79-9
Fluorocarbon Polymers
0
Water Pollutants, Chemical
0
Fluorocarbons
0
Soil
0
Dust
0
Alkanesulfonic Acids
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
139407Informations de copyright
Copyright © 2023 The Author. Published by Elsevier Ltd.. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.