Short Depuration of Oysters Intended for Human Consumption Is Effective at Reducing Exposure to Nanoplastics
- Francisca Ribeiro (9167770)
- Denise M. Mitrano (1549135)
- Christian Hacker (124601)
- Paulina Cherek (6873941)
- Kevin Brigden (14128825)
- Sarit Leat Kaserzon (14128828)
- Kevin V. Thomas (1606927)
- Tamara S. Galloway (29527)
DOIAbstract
Nanoplastics (NPs; <1 μm) have greater availability to marine organisms than microplastics (1–5000 μm). Understanding NP uptake and depuration in marine organisms intended for human consumption is imperative for food safety, but until now it has been limited due to analytical constraints. Oysters (Crassostrea gigas) were exposed to polystyrene NPs doped with palladium (Pd), allowing the measurements of their uptake into tissues by inductively coupled plasma mass spectrometry (ICP-MS) combined with electron microscopy. Oysters were exposed for 6 days (d) to “Smooth” or “Raspberry” NPs, followed by 30 d of depuration with the aim of assessing the NP concentration in C. gigas following exposure, inferring the accumulation and elimination rates...
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