Journal
MARINE POLLUTION BULLETIN
Volume 172, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2021.112818
Keywords
Marine plastic litter; PFAS; Solid waste; Coastal areas; Chile
Funding
- FONDECYT [1161673, 1211931]
- Ministry of Education, Youth and Sports, and Operational Programme Research, Development and Innovation - project CETOCOEN EXCELLENCE [LM2018121, CZ.02.1.01/0.0/0.0/16_013/0001761, CZ.02.1.01/0.0/0.0/17_043/0009632]
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PFASs were found in marine plastic litter on six beaches in central Chile, with the highest abundance recorded at the mouth of the Biobio River. The study highlights the need for further investigation into the occurrence of chemicals in marine plastic litter to reduce their environmental impact, and calls for improved coastal management strategies to eliminate solid waste along the country's coast.
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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