RT info:eu-repo/semantics/article T1 Microplastics in snow of a high mountain national park: El Teide, Tenerife (Canary Islands, Spain) A1 Díaz Peña, Francisco Javier A1 Villanova Solano, Cristina A1 Hernández Sánchez, Cintia A1 Gónzalez Sálamo, Jaavier A1 González Pleiter, Miguel A1 Hernández Borges, Javier K1 Plastic pollution K1 Island territories K1 Protected areas K1 Wet deposition K1 Microfibers K1 MicroFourier Transform Infrared Spectroscopy AB Human activities have introduced high amounts of microplastics (MPs) into the atmosphere that can be transported long distances and be later deposited in terrestrial and aquatic ecosystems with precipitation (rain or snow). In this work, it has been assessed the presence of MPs in the snow of El Teide National Park (Tenerife, Canary Islands, Spain, 2150–3200 m above sea level) after two storm episodes (January–February 2021). The data set (63 samples) was divided into three groups: i) samples from “accessible areas” (after the first storm episode and in places with a strong previous/recent anthropogenic activity); ii) “pristine areas” (after the second storm episode, in places withno previous anthropogenic activity), and iii) “climbing areas” (after the second storm episode, in places with a soft recent anthropogenic activity). Similar pattern profileswere observed among sampling sites in terms ofmorphology, colour and size (predominance of blue and black microfibers of 250–750 μm length), as well as in composition (predominance of cellulosic -either natural or semisynthetic-, with a 62.7 %, polyester, 20.9 %, and acrylic, 6.3 %, microfibers); however, significant differences inMPs concentrations were found between samples collected in pristine areas (average concentration of 51±72 items/L) and those obtained in places with a previous anthropogenic activity (average concentration of 167±104 and 188±164 items/L in “accessible areas” and “climbing areas”, respectively). YR 2023 FD 2023 LK http://riull.ull.es/xmlui/handle/915/35964 UL http://riull.ull.es/xmlui/handle/915/35964 LA en NO https://doi.org/10.1016/j.scitotenv.2023.162276 DS Repositorio institucional de la Universidad de La Laguna RD 16-jun-2024