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Bioaccumulation, release and genotoxicity of stainless steel particles in marine bivalve molluscs

Chemosphere 2022 13 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Emily L. Vernon, Emily L. Vernon, María Florencia Ferreira, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Awadhesh N. Jha, Awadhesh N. Jha, Danielle L. Slomberg, María Florencia Ferreira, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Awadhesh N. Jha, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Awadhesh N. Jha, Andrew Turner Danielle L. Slomberg, Andrew Turner Andrew Turner Andrew Turner Véronique Malard, Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner Andrew Turner C. Grisolia, Andrew Turner Awadhesh N. Jha, Mickaël Payet, Andrew Turner Andrew Turner Andrew Turner C. Grisolia, Véronique Malard, Andrew Turner Andrew Turner Andrew Turner Awadhesh N. Jha, Awadhesh N. Jha, Andrew Turner

Summary

Researchers exposed marine mussels Mytilus galloprovincialis to stainless steel particles in laboratory experiments, finding rapid accumulation in digestive gland tissue followed by efficient clearance via feces within 18 days. Comet assay showed no significant DNA strand breaks, attributed to rapid particle processing and limited dissolution of steel components.

Body Systems

Digestive

Models

Invertebrate other

During the decommissioning and removal of radioactive material in nuclear facilities, fine, tritiated dusts of stainless steel, cement or tungsten are generated that could be accidently released to the environment. However, the potential radio- and ecotoxicological effects these tritiated particles may have are unknown. In this study, stainless steel particles (SSPs) representative of those likely to be tritiated are manufactured by hydrogenation and their tissue-specific bioaccumulation, release (depuration) and subsequent genotoxic response have been studied in the marine mussel, Mytilus galloprovincialis, as a baseline for future assessments of the potential effects of tritiated SSPs. Exposure to 1000 μg L<sup>-1</sup> of SSPs and adopting Cr as a proxy for stainless steel revealed relatively rapid accumulation (∼5 h) in the various mussel tissues but mostly in the digestive gland. Over longer periods up to 18 days, SSPs were readily rejected and egested as faecal material. DNA strand breaks, as a measure of genotoxicity, were determined at each time point in mussel haemocytes using single cell gel electrophoresis, or the comet assay. Lack of chemical genotoxicity was attributed to the rapid processing of SSP particles and limited dissolution of elemental components of steel. Further work employing tritiated SSPs will enable radio-toxicology to be studied without the confounding effects of chemical toxicity.

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