Temperature-Dependent Comparative Toxicity of Zinc Nanoparticles and Salts on Embryological Development of 2 Different Species of Sea Urchins
Project no. 1182 · Status: Kapanmış · 2015
Summary
Zinc oxide nanoparticles are widely used worldwide in several products mainly in electronics, medicine, ceramics, paints, plastics and personel care products including sunscreens. The wide use of ZnO nanoparticles in a number of products means an increasing release into the aquatic ecosystems, which are considered the major sink of nanoparticles due to the discharge through the wastewater. The aim of this study was to evaluate the emryotoxic potentials of different sizes (<50 and <100nm) ZnO nanoparticles and ZnCl2 in A. lixula and P. lividus at early developmental stages in four different temperature degrees. Particle sizes of the ZnO nanoparticles appeared to play an important role in the observed toxicity in this study. The temperature independent mean toxicity decreased in the order ZnO<100nm > ZnCl2 > ZnO<50nm towards A.lixula and ZnCl2 > ZnO<100nm > ZnO<50nm towards P. lividus. In this work, it was observed that different toxicity trends of ZnO and ZnCl2 in the early life stages of two taxonomically unrelated sea urchin species, A. lixula and P. lividus depending on different temperatures.