|
|||||
|
|
| 纳米ZnO对大型溞的急性毒性效应研究 | |
| 引用本文： | 宋文华,刘艳,高敏苓,张文佳,张金洋.纳米ZnO对大型溞的急性毒性效应研究[J].天津师范大学学报(自然科学版),2009,29(3):51-54. |
| 作者姓名： | 宋文华 刘艳 高敏苓 张文佳 张金洋 |
| 作者单位： | 1. 天津理工大学,环境科学与安全工程学院,天津300191;天津工业大学环境学与化学工程学院,天津,300160;上海交通大学,环境科学与工程学院,上海,200240 2. 天津工业大学环境学与化学工程学院,天津,300160 3. 天津理工大学,环境科学与安全工程学院,天津300191 4. 上海交通大学,环境科学与工程学院,上海,200240 |
| 摘 要： | 以大型蜃为模式生物，研究了自然光照（光暗比为12h：12h）和黑暗条件下纳米ZnO对水生生物的急性毒性效应．实验结果表明，在自然光照条件下，不同粒径纳米ZnO对大型潘的毒性顺序为（25±5）和（10±1）〉（90±10）nm，其EC50分别为12．21，9．96和167．36mg／L；黑暗备件下，（10±1），（25±5）和（90±10）nm ZnO对大型潘抑制的EC50分别为19．64，206．70和409．84mg／L．由此可以看出，纳米ZnO在光照条件下对大型潘的影响大于黑暗条件，且粒径大小影响其毒性强弱． |
| 关 键 词： | 大型溞 纳米ZnO 急性毒性 |
Acute toxicity of nano-ZnO to Daphnia Magna |
|
| SONG Wenhua,LIU Yan,GAO Minling,ZHANG Wenjia,ZHANG Jinyang.Acute toxicity of nano-ZnO to Daphnia Magna[J].Journal of Tianjin Normal University(Natural Science Edition),2009,29(3):51-54. | |
| Authors: | SONG Wenhua LIU Yan GAO Minling ZHANG Wenjia ZHANG Jinyang |
| Institution: | SONG Wenhua, LIU Yah, GAO Minling, ZHANG Wenjia, ZHANG Jinyanga (1. School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin ,300191, China; 2. School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, China; 3. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
| Abstract: | The ecotoxieity of nanoscale ZnO water suspensions for Daphnia magna was used as the testing organisms under both conditions of natural light and darkness was examined using a method developed based on the standard OECD guide-lines for the testing of chemicals (i. e. OECD 201,202). The results showed that different nanoscale ZnO exhibited differ-ent toxieities to the testing organisms. The EC50 of (10±1), (25±5) and (90±10) nm ZnO were 12.21, 9.96 and 167.36 mg/L in 48 hours under the natural light, respectively. Based on the results, their toxicity ranked as (25 ± 5),(10±1)>(904±10) nm. The EC50 of (10±1), (25±5) and (90±10) nm ZnO were 19.64,206. 70 and 409. 84 mg/L in 48 hours under the darkness, respectively. The toxicity results indicated that nanoscale ZnO was more danger to daphnia magna in natural light than that of in darkness, and the toxicity was affected by nanopartiele size. |
| Keywords: | daphnia magna nano-ZnO acute toxicity |
| 本文献已被 维普 万方数据 等数据库收录！ | |