文章摘要
林祥龙,孙在金,马瑾,赵龙,秦晓鹏,赵淑婷,杨侨,侯红.不同形态锑对土壤白符跳(Folsomia candida)的毒性差异[J].农业环境科学学报,2017,36(4):657-664.
不同形态锑对土壤白符跳(Folsomia candida)的毒性差异
Toxicity differences of different forms of antimony to soil-dwelling springtail(Folsomia candida)
投稿时间:2016-11-23  
DOI:10.11654/jaes.2016-1490
中文关键词: 锑形态  毒性差异  白符跳  暴露途径
英文关键词: forms of antimony  toxicity differences  Folsomia candida  exposure routes
基金项目:国家重点研发计划项目(2016YFD0800400)
作者单位E-mail
林祥龙 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012  
孙在金 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012  
马瑾 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012  
赵龙 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012  
秦晓鹏 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012  
赵淑婷 云南农业大学资源与环境学院, 昆明 650100  
杨侨 中国地质大学(北京)土地科学技术学院, 北京 100083  
侯红 中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012 houhong@craes.org.cn 
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中文摘要:
      为探讨锑(Sb)形态对Sb毒性的影响,积累和完善Sb的基础毒性数据,为Sb的生态风险评估提供更全面的依据,通过滤纸接触试验、土壤和食物暴露试验,评价并对比了两种形态的锑(SbIII和SbV)对模式生物白符跳(Folsomia candida)的急性、慢性毒性效应及差异。滤纸试验中跳虫在不同浓度SbV水溶液浸透的滤纸上暴露3 d和7 d后均无死亡现象,SbIII对跳虫的半数致死浓度(LC50)分别为325 mg·L-1(3 d)和244 mg·L-1(7 d);土壤暴露试验中SbIII和SbV对跳虫逃避行为的半数效应浓度(EC50)分别为132、344 mg·kg-1,SbIII对跳虫的7 d-LC50为2105 mg·kg-1(SbV的LC50大于设置的最高浓度),SbIII对跳虫的28 d-LC50为703 mg·kg-1(SbV的LC50大于设置的最高浓度),SbIII和SbV对跳虫繁殖的28 d-EC50分别为307、8501 mg·kg-1;食物暴露试验中SbIII和SbV处理下跳虫成虫均无明显死亡,对跳虫繁殖的28 d-EC50分别为433、8798 mg·kg-1。试验结果表明,在设置的浓度范围内SbV不会直接造成跳虫明显死亡,但会对跳虫的生理行为和繁殖产生一定毒性影响,而SbIII对跳虫存活和繁殖均有较大毒性。因此在评估Sb的毒性效应时既要考虑总量也需考虑形态。
英文摘要:
      To explore the effect of antimony forms on its toxicity, we evaluated the acute and chronic toxic effects of two forms of antimony(SbIII and SbV) to Folsomia candida using filter paper contact experiment, soil and food exposure experiment. In filter paper contact experiment, the LC50 values for SbIII were 325 mg·L-1(3 d), 244 mg·L-1(7 d), respectively, but the survival of F. candida was not affected by SbV. In soil exposure experiment, the EC50 values of acute avoidance were 132, 344 mg·kg-1, respectively;the LC50 value of acute survival for SbⅢ was 2105 mg·kg-1(the mortality did not reach 50% in setting concentration range of SbV);The LC50 value of chronic survival for SbIII was 703 mg·kg-1(the LC50 for SbV was higher than the highest antimony concentration), the EC50 values of chronic reproduction were 307, 8501 mg·kg-1, respectively. In food exposure experiment, there were no obvious death of Folsomia candida in SbIII or SbV treatments, the EC50 values of chronic reproduction were 433, 8798 mg·kg-1,respectively. The results showed that SbV could not cause the death of the springtail directly, but impact on its physiological behavior and reproduction, whereas the toxicity of SbIII was more significant than that of SbV. Therefore, when assessing the toxic effects of Sb, both the total amount and the different forms should be considered. This study can accumulate and supplement the toxicity data as well as provide a more comprehensive basis for ecological risk assessment of Sb.
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