PMID- 38518575 OWN - NLM STAT- MEDLINE DCOM- 20240408 LR - 20240408 IS - 1879-3363 (Electronic) IS - 0025-326X (Linking) VI - 201 DP - 2024 Apr TI - Detection of plastic, cellulosic micro-fragments and microfibers in Laternula elliptica from King George Island (Maritime Antarctica). PG - 116257 LID - S0025-326X(24)00234-0 [pii] LID - 10.1016/j.marpolbul.2024.116257 [doi] AB - It is generally acknowledged that microplastic pollutants are prevalent in ocean waters and sediments across a range of tropical, temperate, subpolar, and polar regions. The waters surrounding King George Island are significantly impacted by human activities, particularly those related to scientific stations, fishing, and tourism. Organisms, such as Laternula elliptica, can be used as environmental monitors due to the likelihood that they will bioaccumulate pollutants. The goal of this study was to quantify and identify plastic and cellulosic micro-fragments and microfibers present in the soft body of clams (n = 21), collected from Fildes Bay near sewage and wastewater discharges. Plastic and cellulose microfragments and microfibers were counted, and their compositions were determined using FT-IR. All 21 individuals sampled contained fragments and fibers, with a total of 900 items detected (42.86 +/- 25.36 mean +/- SD items per individual), or 1.82 items g.wet mass(-1). 58 % of items were cellulose and 22 % plastic. Considering the plastic polymer compositions, 28.57 % were polyethylene terephthalate (PET), 21.43 % acrylic, 14.29 % high-density polyethylene (HDPE), 14.29 % Polypropylene (PP), 7.14 % ultra-high drawn polyethylene filament (UHMWPE), 7.14 % polyester and 7.14 % Polyethylene. The quantities and prevalence of MP in L. elliptica were higher than those found in other Antarctic marine species, and even in bivalves from populated regions of the world. Our work assessed the pollution status of L. elliptica near an effluent of wastewater plants and found that 95 % of individuals displayed MP and 100 % microfibers that could impact their population. CI - Copyright (c) 2024 Elsevier Ltd. All rights reserved. FAU - Gonzalez-Aravena, Marcelo AU - Gonzalez-Aravena M AD - Departamento Cientifico, Instituto Antartico Chileno, Plaza Munoz Gamero 1055, Punta Arenas, Chile. FAU - Rotunno, Carmen AU - Rotunno C AD - Departamento Cientifico, Instituto Antartico Chileno, Plaza Munoz Gamero 1055, Punta Arenas, Chile; Pontificia Universidad Catolica de Chile, Santiago de Chile, Chile. FAU - Cardenas, Cesar A AU - Cardenas CA AD - Departamento Cientifico, Instituto Antartico Chileno, Plaza Munoz Gamero 1055, Punta Arenas, Chile; Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago de Chile, Chile. FAU - Torres, Mariett AU - Torres M AD - Facultad de Ingenieria, Arquitectura y Diseno, Universidad San Sebastian, Lientur 1457, Concepcion, Chile. FAU - Morley, Simon A AU - Morley SA AD - British Antarctic Survey, Natural Environment Research Council, Cambridge, UK. FAU - Hurley, Jessica AU - Hurley J AD - British Antarctic Survey, Natural Environment Research Council, Cambridge, UK; Department of Biological and Marine Sciences, University of Hull, Hull, UK. FAU - Caro-Lara, Luis AU - Caro-Lara L AD - Unidad de Proyectos y Medio Ambiente, Instituto Antartico Chileno, Plaza Munoz Gamero 1055, Punta Arenas, Chile. FAU - Pozo, Karla AU - Pozo K AD - Facultad de Ingenieria, Arquitectura y Diseno, Universidad San Sebastian, Lientur 1457, Concepcion, Chile; RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czechia. FAU - Galban, Cristobal AU - Galban C AD - GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Piramide 5780, Huechuraba, Santiago de Chile, Chile. FAU - Rondon, Rodolfo AU - Rondon R AD - Departamento Cientifico, Instituto Antartico Chileno, Plaza Munoz Gamero 1055, Punta Arenas, Chile. Electronic address: rrondon@inach.cl. LA - eng PT - Journal Article DEP - 20240321 PL - England TA - Mar Pollut Bull JT - Marine pollution bulletin JID - 0260231 RN - 0 (Plastics) RN - 0 (Wastewater) RN - 0 (Water Pollutants, Chemical) RN - 9002-88-4 (Polyethylene) RN - 9004-34-6 (Cellulose) SB - IM MH - Animals MH - Humans MH - Plastics MH - Antarctic Regions MH - Wastewater MH - Spectroscopy, Fourier Transform Infrared MH - *Water Pollutants, Chemical/analysis MH - Environmental Monitoring MH - *Bivalvia MH - Polyethylene MH - Cellulose OTO - NOTNLM OT - Contaminant of emerging concern OT - Microplastics OT - Mollusk OT - Pollution OT - Western Antarctic Peninsula COIS- 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. EDAT- 2024/03/23 05:42 MHDA- 2024/04/08 06:43 CRDT- 2024/03/22 19:12 PHST- 2024/02/01 00:00 [received] PHST- 2024/02/27 00:00 [revised] PHST- 2024/03/11 00:00 [accepted] PHST- 2024/04/08 06:43 [medline] PHST- 2024/03/23 05:42 [pubmed] PHST- 2024/03/22 19:12 [entrez] AID - S0025-326X(24)00234-0 [pii] AID - 10.1016/j.marpolbul.2024.116257 [doi] PST - ppublish SO - Mar Pollut Bull. 2024 Apr;201:116257. doi: 10.1016/j.marpolbul.2024.116257. Epub 2024 Mar 21.