期刊
NANOIMPACT
卷 20, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.impact.2020.100262
关键词
Nanoplastics; Identification; Characterization; Rare earth element; Traceability; Coast
资金
- ANR (Agence Nationale de le Recherche, France) PRC program through the PEPSEA project [ANR-17CE34-0008]
The occurrence of nanoplastics in the environment is now known and presents new threats linked to plastic debris issues. New questions about the formation pathways and life cycle assessment of nanoplastics in continental and marine environments have been raised. In the present study, we focused on the Guadeloupe island coastal system. For the first time, we demonstrated the presence of nanoplastics in sand water extracts (SWEs). We also investigated the potential of rare earth elements (REE) in tracing nanoplastics. Based on the REE patterns of SWEs, beached plastics and modern corals, we demonstrated that nanoplastics are important components in the REE signature of coastal sand (29 to 73%). These original results demonstrate the relevance of developing geochemical tracers for determining the fate of missing plastic litter.
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