Department of Terrestrial Ecology, National Environmental Research Institute, Aarhus University, Po Box 314, Vejlsøvej 25, 8600, Silkeborg, Denmark.
Ecotoxicology. 2011 Jan;20(1):226-33. doi: 10.1007/s10646-010-0574-0. Epub 2010 Dec 1.
The toxicity of a range of inorganic (Ag, Cu, Ni, Al(2)O(3), SiO(2), TiO(2) and ZrO(2)) nanoparticles (NP) and their corresponding metal salt or bulk metal oxide were screened for toxicity toward the earthworm Eisenia fetida using the limit-test design (1000 mg/kg). This study provides the first ecotoxicological life history trait data on earthworms for each these NPs, as well as for AgNO(3), Al(2)O(3), SiO(2), TiO(2) and ZrO(2). Significant effects were observed on survival for AgNO(3) (2.5% of controls), CuCl(2) (17.5% of controls) and NiCl(2) (32.5% of controls) and on reproduction (AgNO(3), CuCl(2), NiCl(2), Ag-NP, Cu-NP, TiO(2)-NP); with total reproductive failure in both silver treatments. Ag-NP, Cu-NP and TiO(2)-NP were the only NPs that caused toxic effects to E. fetida. The toxicity could not be singularly related to particle size or zeta potential or to the inherent element constituting the NPs (e.g. Ag).
采用极限测试设计（1000mg/kg），对一系列无机（Ag、Cu、Ni、Al2O3、SiO2、TiO2 和 ZrO2）纳米颗粒（NP）及其相应的金属盐或块状金属氧化物的毒性进行了筛选，评估其对赤子爱胜蚓（Eisenia fetida）的毒性。本研究首次提供了这些 NPs 以及 AgNO3、Al2O3、SiO2、TiO2 和 ZrO2 的生态毒理学生活史特征数据。AgNO3（对照组的 2.5%）、CuCl2（对照组的 17.5%）和 NiCl2（对照组的 32.5%）对赤子爱胜蚓的存活率有显著影响，对繁殖（AgNO3、CuCl2、NiCl2、Ag-NP、Cu-NP、TiO2-NP）也有显著影响；在两种银处理中，赤子爱胜蚓的繁殖完全失败。Ag-NP、Cu-NP 和 TiO2-NP 是唯一对赤子爱胜蚓具有毒性的 NPs。毒性不能单纯地与颗粒大小或 Zeta 电位或构成 NPs 的固有元素（如 Ag）相关。
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