Abstract：
:Large amounts of anthropogenic CO2 in the atmosphere are taken up by the ocean, which leads to 'ocean acidification' (OA). In addition, the increasing application of nanoparticles inevitably leads to their increased release into the aquatic environment. However, the impact of OA on the bioaccumulation of nanoparticles in marine organisms still remains unknown. This study investigated the effects of OA on the bioaccumulation of a model nanoparticle, titanium dioxide nanoparticles (nTiO2), in three edible bivalves. All species tested accumulated significantly greater amount of nTiO2 in pCO2-acidified seawater. Furthermore, the potential health threats of realistic nTiO2 quantities accumulated in bivalves under future OA scenarios were evaluated with a mouse assay, which revealed evident organ edema and alterations in hematologic indices and blood chemistry values under future OA scenario (pH at 7.4). Overall, this study suggests that OA would enhance the accumulation of nTiO2 in edible bivalves and may therefore increase the health risk for seafood consumers.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Shi W,Han Y,Guo C,Su W,Zhao X,Zha S,Wang Y,Liu Gdoi
10.1038/s41598-019-40047-1subject
Has Abstractpub_date
2019-03-05 00:00:00pages
3516issue
1issn
2045-2322pii
10.1038/s41598-019-40047-1journal_volume
9pub_type
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