Abstract:By using Skeletonema costatum as experimental algae, the toxic effect of Cu2+, nanometer-copper, and micrometer-copper on it was studied. The results showed that the three copper reagents could inhibited the growth of S. costatum in different degrees. Generally, the increase value of chlorophyll and algal cell density had negative relationship with addition of the copper reagents. In the whole experimental period (96hours), the growth of S. costatum was strongly inhibited if the concentration of Cu2+ was higher than 0.1mg/L, and the algal density and chlorophyll were seriously affected as the concentration of nano-copper was higher than 0.15mg/L. Micro-copper stimulated the growth of S. costatum within 24h when its concentration was lower than 2mg/L. Algae growth was inhibited within 96h in high concentration of micro-copper (>1mg/L). The mechanism of the toxic effect of copper nanoparticles on Skeletonema costatum was attributed to its dissolved copper ions and the nanoparticles itself.
李芳芳, 潘容, 张偲, 王江涛. 纳米铜粉对中肋骨条藻的毒性效应[J]. 中国环境科学, 2015, 35(9): 2874-2880.
LI Fang-Fang, PAN Rong, ZHANG Cai, WANG Jiang-Tao. Inhibition effects of copper nanoparticles on the growth of Skeletonema costatum. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(9): 2874-2880.