Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain)
In this work, the microplastic content of sediments collected in July 2020 between 5 and 7 m depth was studied in four locations of La Palma island (Canary Islands, Spain). At each sampling location, three samples were taken parallel to the shoreline. The microplastic content in each sampling corer...
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ftcsic:oai:digital.csic.es:10261/317758 2024-02-11T10:06:36+01:00 Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain) Villanova-Solano, Cristina Díaz-Peña, F.J. Hernández-Sánchez, Cintia González-Sálamo, Javier González-Pleiter, Miguel Vega-Moreno, Daura Fernández-Piñas, Francisca Fraile-Nuez, Eugenio Machín, Francisco Hernández-Borges, Javier 2022-02-01 http://hdl.handle.net/10508/15697 http://hdl.handle.net/10261/317758 https://doi.org/10.1016/j.chemosphere.2021.132530 en eng Centro Oceanográfico de Canarias AM Chemosphere, 132530. 2021: 1-12 0045-6535 http://hdl.handle.net/10508/15697 http://hdl.handle.net/10261/317758 https://doi.org/10.1016/j.chemosphere.2021.132530 50032 open Medio Marino Microplastics Centro Oceanográfico de Canarias Fibers Sediments Ocean dynamic Canary Islands Fourier Transform Infrared microscopy pollution islands access sedimentary environments research article 2022 ftcsic https://doi.org/10.1016/j.chemosphere.2021.132530 2024-01-16T11:44:50Z In this work, the microplastic content of sediments collected in July 2020 between 5 and 7 m depth was studied in four locations of La Palma island (Canary Islands, Spain). At each sampling location, three samples were taken parallel to the shoreline. The microplastic content in each sampling corer was studied every 2.5 cm depth after digestion with a H2O2 solution followed by flotation in a saturated NaCl solution. Visualization of the final filtrates under a stereomicroscope revealed that all the sediment samples evaluated contained mostly microfibers (98.3%) which were mainly white/colorless (86.0%) and blue (9.8%), with an average length of 2423 ± 2235 (SD) mm and an average concentration of 2682 ± 827 items per kg of dry weight, being the total number of items found 1,019. Fourier Transform Infrared microscopy analysis of 13.9% (n = 139) of the microfibers also showed that they were mainly cellulosic (81.3%). No significant differences were found between the depths of the sediment. However, significant differences were found between the number of fibers from the sampling sites at the east and west of the island. Such variability could be driven by the winds and ocean mesoscale dynamics in the area. This study confirms the wide distribution of microfibers in sediments from an oceanic island like La Palma, providing their first report in marine sediments of the Canary Islands. SI Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Chemosphere 288 132530 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Medio Marino Microplastics Centro Oceanográfico de Canarias Fibers Sediments Ocean dynamic Canary Islands Fourier Transform Infrared microscopy pollution islands access sedimentary environments |
spellingShingle |
Medio Marino Microplastics Centro Oceanográfico de Canarias Fibers Sediments Ocean dynamic Canary Islands Fourier Transform Infrared microscopy pollution islands access sedimentary environments Villanova-Solano, Cristina Díaz-Peña, F.J. Hernández-Sánchez, Cintia González-Sálamo, Javier González-Pleiter, Miguel Vega-Moreno, Daura Fernández-Piñas, Francisca Fraile-Nuez, Eugenio Machín, Francisco Hernández-Borges, Javier Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain) |
topic_facet |
Medio Marino Microplastics Centro Oceanográfico de Canarias Fibers Sediments Ocean dynamic Canary Islands Fourier Transform Infrared microscopy pollution islands access sedimentary environments |
description |
In this work, the microplastic content of sediments collected in July 2020 between 5 and 7 m depth was studied in four locations of La Palma island (Canary Islands, Spain). At each sampling location, three samples were taken parallel to the shoreline. The microplastic content in each sampling corer was studied every 2.5 cm depth after digestion with a H2O2 solution followed by flotation in a saturated NaCl solution. Visualization of the final filtrates under a stereomicroscope revealed that all the sediment samples evaluated contained mostly microfibers (98.3%) which were mainly white/colorless (86.0%) and blue (9.8%), with an average length of 2423 ± 2235 (SD) mm and an average concentration of 2682 ± 827 items per kg of dry weight, being the total number of items found 1,019. Fourier Transform Infrared microscopy analysis of 13.9% (n = 139) of the microfibers also showed that they were mainly cellulosic (81.3%). No significant differences were found between the depths of the sediment. However, significant differences were found between the number of fibers from the sampling sites at the east and west of the island. Such variability could be driven by the winds and ocean mesoscale dynamics in the area. This study confirms the wide distribution of microfibers in sediments from an oceanic island like La Palma, providing their first report in marine sediments of the Canary Islands. SI |
format |
Article in Journal/Newspaper |
author |
Villanova-Solano, Cristina Díaz-Peña, F.J. Hernández-Sánchez, Cintia González-Sálamo, Javier González-Pleiter, Miguel Vega-Moreno, Daura Fernández-Piñas, Francisca Fraile-Nuez, Eugenio Machín, Francisco Hernández-Borges, Javier |
author_facet |
Villanova-Solano, Cristina Díaz-Peña, F.J. Hernández-Sánchez, Cintia González-Sálamo, Javier González-Pleiter, Miguel Vega-Moreno, Daura Fernández-Piñas, Francisca Fraile-Nuez, Eugenio Machín, Francisco Hernández-Borges, Javier |
author_sort |
Villanova-Solano, Cristina |
title |
Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain) |
title_short |
Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain) |
title_full |
Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain) |
title_fullStr |
Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain) |
title_full_unstemmed |
Microplastic pollution in sublittoral coastal sediments of a North Atlantic island: The case of La Palma (Canary Islands, Spain) |
title_sort |
microplastic pollution in sublittoral coastal sediments of a north atlantic island: the case of la palma (canary islands, spain) |
publishDate |
2022 |
url |
http://hdl.handle.net/10508/15697 http://hdl.handle.net/10261/317758 https://doi.org/10.1016/j.chemosphere.2021.132530 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Centro Oceanográfico de Canarias AM Chemosphere, 132530. 2021: 1-12 0045-6535 http://hdl.handle.net/10508/15697 http://hdl.handle.net/10261/317758 https://doi.org/10.1016/j.chemosphere.2021.132530 50032 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.chemosphere.2021.132530 |
container_title |
Chemosphere |
container_volume |
288 |
container_start_page |
132530 |
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1790604408210325504 |