Effect of copper nanomaterials on growth of Lemna sp.
Main Article Content
Abstract
Because of its many advantages, the application of nanomaterial is becoming more widespread and popular. After application progress, the metallic nanoparticles can deposited in aquatic ecosystems. Although the results of the toxicity of metal nanoparticles for many species have been widely reported, toxicity data in different studies are not always comparable and usable. To evaluate the safety of nanomaterial, the Lemna sp. dukweed has been used to test the toxicity of copper nanoparticle fabricated by the chemical reduction method. The weight of Lemna sp. was compared between the first day and the last day of the experiment period (7th day of cultivation). The results showed that copper nanoparticles affected the growth inhibition against Lemna sp. The highest growth inhibition efficiencies reached 40% when supplemented with 1 and 5 mg / L copper nanomaterial. No growth inhibition was observed at lower concentrations (0.01, 0.05 and 0.1 mg / L).
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