Journal
MARINE POLLUTION BULLETIN
Volume 160, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2020.111716
Keywords
Laser ablation-ICP MS; Microplastics; Trace elements; Additives; Sorption
Funding
- French Agency for Research -ANR (Agence Nationale de la Recherche, France) PRC program through the PEPSEA project [ANR-17-CE34-0008]
- Nouvelle-Aquitaine Region (En-Pi project)
- Nouvelle-Aquitaine Region (AQUITRACE project)
- Agence Nationale de la Recherche (ANR) [ANR-17-CE34-0008] Funding Source: Agence Nationale de la Recherche (ANR)
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Due to the dramatic quantity of plastic debris released into our environment, one of the biggest challenges of the next decades is to trace and quantify microplastics (MPs) in our environments, especially to better evaluate their capacity to transport other contaminants such as trace metals. In this study, trace elements (Fe, Cu, Zn, As, Cd, Sn, Sb, Pb, and U) were analyzed in the microplastic subsurface (200 mu m) using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Microplastics subjected to the marine environment were collected on beaches (Guadeloupe) exposed to the north Atlantic gyre. We established a strategy to discriminate sorbed contaminants from additives based on the metal concentration profiles in MP subsurface using qualitative and quantitative approaches. A spatiotemporal correlation of the sorption pattern was proposed to compare MPs in terms of relative exposure time and time-weighted average concentrations in the exposure media.
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