Comparative toxicity of copper nanoparticles across three Lemnaceae species

The Science of the Total Environment
Lan SongWillie J G M Peijnenburg

Abstract

Metallic nanoparticles can end up in aquatic ecosystems due to their widespread application. Even though the toxicological effects of metallic nanoparticles to a diversity of species have been reported extensively, the toxicological data achieved in different studies are not always comparable and little is known regarding the comparative toxicity of nanoparticles across species, as different test strategies and endpoints were applied. To attempt to fill this knowledge gap, Spirodela polyrhiza, Lemna minor and Wolffia arrhiza were exposed to 25 nm spherical copper nanoparticles to investigate the inhibiting effect of copper nanoparticle suspensions across species at three endpoints: total frond area, frond number and dry weight based relative growth rate. The total frond area based relative growth rate was found to be the most sensitive endpoint, with an EC50 of 1.15±0.09 mg/L for S. polyrhiza, 0.84±0.12 mg/L for L. minor and 0.64±0.05 mg/L for W. arrhiza. Both the particles and the copper ions contributed to the inhibiting effects of copper nanoparticle suspensions at all endpoints studied. Dose-response related inhibiting effects caused by the copper ions were found at all endpoints studied, whereas the particles only showed d...Continue Reading

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Citations

May 3, 2016·The Science of the Total Environment·Yinlong XiaoMartina G Vijver
Aug 4, 2016·The Science of the Total Environment·Mehrnaz HatamiMansour Ghorbanpour
Aug 28, 2015·Environmental Science. Processes & Impacts·Nubia Zuverza-MenaJorge L Gardea-Torresdey
Apr 1, 2020·Nanomaterials·Bianca-Vanesa Boros, Vasile Ostafe
Sep 24, 2015·Environmental Science and Pollution Research International·Domingo Martínez-FernándezMichael Komárek
Dec 15, 2017·Environmental Pollution·Devin A RippnerSanjai J Parikh
Aug 23, 2020·Ecotoxicology and Environmental Safety·Yang LiuBaoshan Xing
Sep 14, 2020·Ecotoxicology and Environmental Safety·Imtiaz AhmedWenhong Fan

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