| Title: |
The Duration of Dry Events Promotes PVC Film Fragmentation in Intermittent Rivers |
| Authors: |
Barthélémy, Nans; Mermillod-Blondin, Florian; Krause, Stefan; Simon, Laurent; Mimeau, Louise; Devers, Alexandre; Vidal, Jean-Philippe; Datry, T. |
| Contributors: |
RiverLy - Fonctionnement des hydrosystèmes (RiverLy); Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE); LEHNA - Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés équipe E3S (LEHNA E3S); Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA); Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS); School of Geography, Earth and Environmental Sciences Birmingham; University of Birmingham Birmingham |
| Source: |
ISSN: 0013-936X. |
| Publisher Information: |
CCSD; American Chemical Society |
| Publication Year: |
2024 |
| Collection: |
HAL Lyon 1 (University Claude Bernard Lyon 1) |
| Subject Terms: |
plastic fragmentation; drying and rewetting; microplastics; intermittent river; IRES; plastic pollution; [SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology; [SDE]Environmental Sciences |
| Description: |
International audience ; The majority of microplastics (MPs) found in the environment originate from plastic fragmentation occurring in the environment and are influenced by environmental factors such as UV irradiation and biotic interactions. However, the effects of river drying on plastic fragmentation remain unknown, despite the global prevalence of watercourses experiencing flow intermittence. This study investigates, through laboratory experiments, the coupled effects of drying duration and UV irradiation on PVC film fragmentation induced by artificial mechanical abrasion. This study shows that PVC film fragmentation increases with drying duration through an increase in the abundance and size of formed MPs as well as mass loss from the initial plastic item, with significant differences for drying durations >50% of the experiment duration. The average abundance of formed MPs in treatments exposed to severe drying duration was almost two times higher than in treatments nonexposed to drying. Based on these results, we developed as a proof of concept an Intermittence-Based Plastic Fragmentation Index that may provide insights into plastic fragmentation occurring in river catchments experiencing large hydrological variability. The present study suggests that flow intermittence occurring in rivers and streams can lead to increasing plastic fragmentation, unraveling new insights into plastic pollution in freshwater systems. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/pmid/38954776; PUBMED: 38954776; WOS: 001261334800001 |
| DOI: |
10.1021/acs.est.4c00528 |
| Availability: |
https://hal.inrae.fr/hal-04660274; https://hal.inrae.fr/hal-04660274v1/document; https://hal.inrae.fr/hal-04660274v1/file/Barthelemy%20et%20al.%202024.pdf; https://doi.org/10.1021/acs.est.4c00528 |
| Rights: |
https://about.hal.science/hal-authorisation-v1/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.6B87362B |
| Database: |
BASE |