期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 722, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.137904
关键词
Microplastics; Additives; Anthropogenic fibers; Polar; Arctic lake
资金
- Ministerio de Ciencia, Innovacion y Universidades [RED2018102345-T]
- SpanishMinistry of Economy and Competitiveness [CTM2016-74927-C2-1/2-R, CTM2016-79741R, AGL201453771-R, AGL2017-87591-R, PCIN2016-001]
- Spanish State Research Agency [PCIN2016-001]
- BiodivERsA3 2015-2016 by the European Commission
- Comunidad de Madrid -EU
We investigated the presence of microplastics and other anthropogenic litter in the sediments adhered to rocks of an Arctic freshwater lake at Ny-Alesund (Svalbard Archipelago, 78 degrees N; 11 degrees E). Most of the sampled microparticles were fibers (>90%). The identification of polymer types and additives was performed by combining three spectroscopic techniques, namely Raman Microscopy, Fourier-Transform Infrared microspectroscopy (mu FTIR) and Synchrotron Radiation mu FTIR (SR-FTIR). SR-FTIR confirmed the presence of poly(ethylene terephthalate) fibers, while RAMAN spectroscopy provided evidence of fibers containing industrial additives. Our results estimated an average concentration of 400 microparticles/m(2) of rocks identified as anthropogenic litter, which included an estimation of 90 microplastics/m(2) identified as polyester fibers; the rest are mostly natural fibers with evidence of anthropogenic origin. Taken together, the results proved the occurrence of anthropogenic pollutants in remote polar areas. Their probable origin is the long range atmospheric transport. (C) 2020 Elsevier B.V. All rights reserved.
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