Microplastic concentration, distribution and dynamics along one of the largest Mediterranean-climate rivers: A whole watershed approach

dc.creatorCorrea-Araneda
dc.creatorFrancisco Perez
dc.creatorJavier Tonin
dc.creatorAlan M. Esse
dc.creatorCarlos Boyero
dc.creatorLuz Diaz
dc.creatorMaria Elisa Figueroa
dc.creatorRicardo Santander-Massa
dc.creatorRodrigo Cornejo
dc.creatorAydee Link
dc.creatorOscar Jorquera
dc.creatorErika Urbina
dc.creatorMauricio A.
dc.date2022
dc.date2022-03-01T16:05:37Z
dc.date2022-03-01T16:05:37Z
dc.date.accessioned2022-10-18T14:53:29Z
dc.date.available2022-10-18T14:53:29Z
dc.identifierENVIRONMENTAL RESEARCH,Vol.209,,2022
dc.identifierhttps://repositoriodigital.uct.cl/handle/10925/4511
dc.identifier10.1016/j.envres.2022.112808
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4444456
dc.descriptionMicroplastics (MPs) have been recognized as one of the most ubiquitous environmental pollutants globally. They have been found in all ecosystems studied to date, threatening biological diversity, ecosystem functioning and human health. The present study aimed to elucidate the environmental and anthropogenic drivers of MP dynamics in the whole catchment of the Biotin) river, one of the largest rivers in South America. MP concentration and characteristics were analysed in 18 sites subjected to different sources of pollution and other human-related impacts. The sampling sites were classified in relation to altitudinal zones (highland, midland and lowland) and ecosystem types (fluvial and reservoir), and different water and territorial environmental variables were further collated and considered for analysis. Seven types of micmplastic polymers were identified in the samples analysed, with a catchment mean (+/- SE) MP concentration of 22 +/- 0.4 particles m(-3) 5 and MP presence being significantly higher in lowlands (26 +/- 2 particle m(-3)) and in reservoirs (42 +/- 14 particle m(-3)). The most abundant type of MP was fragments (84%), with a mean concentration of 37 +/- 6 particles m(-3). Overall, MP concentrations were low compared to those found in other studies, with a strong influence of human population size.
dc.languageen
dc.publisherACADEMIC PRESS INC ELSEVIER SCIENCE
dc.sourceENVIRONMENTAL RESEARCH
dc.subjectPlastic pollution
dc.subjectFreshwater
dc.subjectReservoir
dc.subjectMicroplastic dynamics
dc.subjectStream hydrology
dc.titleMicroplastic concentration, distribution and dynamics along one of the largest Mediterranean-climate rivers: A whole watershed approach
dc.typeArticle


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