Microplastic pollution in marine sediments of the Antarctic coastal environment of Potter Cove and nearby areas (25 de Mayo/King George Island, South Shetlands)

被引：1
作者：
Antacli, J. C. [1 ,2 ]
Rimondino, G. N. [3 ]
Di Mauro, R. [4 ,5 ]
Alurralde, G. [6 ,7 ]
Servetto, N. [1 ,2 ]
Garcia, M. D. [8 ]
Morales, S. [1 ]
Sahade, R. [1 ,2 ]
Vodopivez, C. [9 ]
Schloss, I. R. [9 ,10 ,11 ]
机构：
[1] Univ Nacl Cordoba, Fac Ciencias Exactas Fis & Nat, Ecol Marina, Av Velez Sarsfield 299, RA-5000 Cordoba, Argentina
[2] Consejo Nacl Invest Cient & Tecn, Inst Divers & Ecol Anim IDEA, Cordoba, Argentina
[3] Univ Nacl Cordoba UNC, Fac Ciencias Quim, Consejo Nacl Invest Cient & Tecn CONICET, Inst Invest Fisicoquim Cordoba INFIQC,CONICET, Cordoba, Argentina
[4] Inst Nacl Invest & Desarrollo Pesquero INIDEP, Paseo Victoria Ocampo N 1,B7602HSA, Mar Del Plata, Argentina
[5] Univ Nacl Lujan Argentina, Buenos Aires, Argentina
[6] Stockholm Univ, Dept Environm Sci, S-10691 Stockholm, Sweden
[7] Balt Marine Environm Protect Commiss HELCOM, FI-00160 Helsinki, Finland
[8] Agencia Invest Cient Minist Publ Pampa, Corona Martinez & Constituyentes, Santa Rosa, La Pampa, Argentina
[9] Inst Antartico Argentino, 25 Mayo, RA-1143 Buenos Aires, Argentina
[10] Consejo Nacl Invest Cient & Tecn, Ctr Austral Invest Cient CAD, Bernardo Houssay 200, RA-9410 Ushuaia, Tierra Fuego, Argentina
[11] Univ Nacl Tierra Fuego, Ushuaia, Tierra Del Fueg, Argentina
来源：
MARINE POLLUTION BULLETIN | 2024年 / 209卷
关键词：
Coastal Antarctica; Potter Cove; Microplastic pollution; Sediments; Infrared spectroscopy; PLASTIC INGESTION; ROSS SEA; WATER; FATE; IDENTIFICATION; ACCUMULATION; PARTICLES; DEBRIS; SPECTROSCOPY; DEGRADATION;
D O I：
10.1016/j.marpolbul.2024.117236
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Plastic contamination in the Southern Ocean is a growing issue. This study provides the first comprehensive analysis of marine microplastics (MPs) (0.1-5 mm) in surface sediments in Potter Cove and nearby areas around Argentina's Carlini station (25 de Mayo/King George Island, South Shetlands). Sediment samples from 31 sites (2020-2022) were collected to examine whether MP pollution originates from station activities or ocean currents. All samples contained MPs, averaging 0.18 +/- 0.12 MPs/g of sediment, mainly microfibers (MFs) and irregular microfragments (MFRs) (0.11-6.23 mm) and irregular microfragments (MFRs) (0.09-4.57 mm). Infrared spectroscopy identified 13 polymer types, including cellulosic materials, polyester, and polyamide, with most MPs < 1 mm, showing aging signs, similar to laundry wear. This widespread distribution suggests contamination may stem from both local activities and external sources. Findings underscore the urgent need for MP pollution management and further research to identify sources and develop effective mitigation strategies.
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页数：18
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