An Outdoor Aging Study to Investigate the Release of Per- And Polyfluoroalkyl Substances (PFAS) from Functional Textiles
Artikel i vetenskaplig tidskrift, 2021

The emission of per- and polyfluoroalkyl substances (PFAS) from functional textiles was investigated via an outdoor weathering experiment in Sydney, Australia. Polyamide (PA) textile fabrics treated with different water-repellent, side-chain fluorinated polymers (SFPs) were exposed on a rooftop to multiple natural stressors, including direct sunlight, precipitation, wind, and heat for 6-months. After weathering, additional stress was applied to the fabrics through abrasion and washing. Textile characterization using a multiplatform analytical approach revealed loss of both PFAS-containing textile fragments (e.g., microfibers) as well as formation and loss of low molecular weight PFAS, both of which occurred throughout weathering. These changes were accompanied by a loss of color and water repellency of the textile. The potential formation of perfluoroalkyl acids (PFAAs) from mobile residuals was quantified by oxidative conversion of extracts from unweathered textiles. Each SFP-textile finish emitted a distinct PFAA pattern following weathering, and in some cases the concentrations exceeded regulatory limits for textiles. In addition to transformation of residual low molecular weight PFAA-precursors, release of polymeric PFAS from degradation and loss of textile fibers/particles contributed to overall PFAS emissions during weathering.

total fluorine analysis

microplastic fibers

functional textile

diffuse emissions

textile weathering

PFAS

Författare

Steffen Schellenberger

Stockholms universitet

RISE Research Institutes of Sweden

Ioannis Liagkouridis

IVL Svenska Miljöinstitutet

Stockholms universitet

Raed Awad

Stockholms universitet

IVL Svenska Miljöinstitutet

Stuart Khan

University of New South Wales (UNSW)

Merle Plassmann

Stockholms universitet

Gregory Peters

Chalmers, Teknikens ekonomi och organisation, Environmental Systems Analysis

University of New South Wales (UNSW)

Jonathan P. Benskin

Stockholms universitet

Ian Cousins

Stockholms universitet

Environmental Science & Technology

0013-936X (ISSN) 1520-5851 (eISSN)

Vol. In Press

Subsitution i praktiken av prioriterade flourkemikalier för att eliminera diffusa källor (SUPFES)

Formas (2012-2148), 2013-01-01 -- 2017-12-31.

Stockholms läns landsting (LS 2016-1448), 2017-01-01 -- 2020-12-31.

Ämneskategorier

Polymerkemi

Polymerteknologi

Textil-, gummi- och polymermaterial

DOI

10.1021/acs.est.1c06812

PubMed

35213128

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Senast uppdaterat

2022-03-31