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The effect of titanium dioxide (anatase and rutile isoforms) nanoparticle suspensions on the biological parameters of some freshwater animals of various systematic statuses has been studied. The most sensitive are Ceriodaphnia affinis Lillijeborg, 1862; the most resistant are zebra fish Danio rerio Hamilton-Buchanan, 1822. Anatase in concentrations equal to rutile has a more pronounced toxic effect...
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