Accelerated ecotoxicity of photoreactive nanoparticles onMoina macrocopa.
Zinc oxide nanoparticles (ZnO NPs) and titanium dioxide nanoparticles (TiO2NPs) are well known as photoreactive nanoparticles (NPs). Various phototoxicities of ZnO NPs and TiO2NPs were reported on several organisms. It was still necessary to evaluate the toxicity of photoreactive ZnO NPs and TiO2NPs due to species-specific effects under various irradiation conditions. We compared the acute toxicity ofMoina macrocopaunder visible, ultraviolet (UV) A, and B irradiations, according to the Organization for Economic Cooperation and Development guidelines for the testing of chemicals (Test No. 202). The sensitivity of ZnO NPs forM. macrocopawas UVB>UVA>visible light irradiation. There were no significant lethal and immobile effects of TiO2NPs on juveniles under all irradiations and in the tested concentrations of TiO2NPs. Photoreactive NPs have a potential and accelerated toxicity on organisms in the ambient environments.
Department of Environmental Health Science, Konkuk University, Seoul, Korea.
Sun-Hwa
0000-0003-4633-296X
SH
Nam
Department of Environmental Health Science, Konkuk University, Seoul, Korea.
Yu-Jin
YJ
Shin
Department of Environmental Health Science, Konkuk University, Seoul, Korea.
Youn-Joo
0000-0002-0193-1929
YJ
An
Moina macrocopa; Phototoxicity; Titanium dioxide nanoparticles; Ultraviolet; Zinc oxide nanoparticles