Occurrence of perfluoroalkyl substances (PFASs) in marine plastic litter from coastal areas of Central Chile

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Authors

GOMEZ Victoria Antoineta TORRES Mariett KACER Pavlína PŘIBYLOVÁ Petra KLÁNOVÁ Jana POZO Karla Andrea

Year of publication 2021
Type Article in Periodical
Magazine / Source Marine Pollution Bulletin
MU Faculty or unit

Faculty of Science

Citation
Web https://www.sciencedirect.com/science/article/pii/S0025326X21008523?via%3Dihub
Doi http://dx.doi.org/10.1016/j.marpolbul.2021.112818
Keywords Marine plastic litter; PFAS; Solid waste; Coastal areas; Chile
Description Perfluorinated alkyl substances (PFASs) were determined in marine plastic litter (MPL) on six beaches of central Chile. MPL was characterized physically and chemically, showing an abundance of macroplastic (size >2.5 cm). The polypropylene (PP) (47%) was the predominant polymer found. The Desembocadura beach, located at the mouth of the Biobio River, recorded the highest abundance of MPL (3.7 items m-2). PFAS detected (n = 15/21) ranged from 279 to 1211 pg g-1 and accounted for MeFOSE (46%) > PFHxS (14%) > PFPA (11%) > PFBS (6%) > PFOA (4%) and > PFOS (4%). Long-chain PFAS were prevalent, which can be metabolically degraded into PFOS (new POPs). This study i) highlights the need to further investigate the occurrence of chemicals in the MPL to reduce their impact on the environment; and ii) points out the need to improve future coastal management strategies for the elimination of solid waste along the coast of the country.
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