Nanoplastics on the coast exposed to the North Atlantic Gyre: Evidence and traceability

被引:82
作者
Davranche, Melanie [1 ]
Lory, Caroline [1 ]
Le Juge, Corentin [1 ]
Blancho, Florent [1 ]
Dia, Aline [1 ]
Grassl, Bruno [2 ]
El Hadri, Hind [2 ]
Pascal, Pierre-Yves [3 ]
Gigault, Julien [1 ]
机构
[1] Univ Rennes, CNRS, UMR 6118, Geosci Rennes, F-35000 Rennes, France
[2] Univ Pau & Pays Adour, CNRS, UMR 5254, IPREM, F-F64000 Pau, France
[3] Univ Antilles & Guyane Francaise, UMR 7205, Inst Systemat Evolut Biodivers, Pointe A Pitre, Guadeloupe, France
关键词
Nanoplastics; Identification; Characterization; Rare earth element; Traceability; Coast; RARE-EARTH-ELEMENTS; PLASTIC DEBRIS; TRACE-METALS; MICROPLASTICS; PARTICLES; FRACTIONATION; OXYHYDROXIDE; ADSORPTION; OXIDATION; WATERS;
D O I
10.1016/j.impact.2020.100262
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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.
引用
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页数:9
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