摘要
利用土壤模式动物白符跳(Folsomia candida),评价4种PFOS替代产品,包括50%的全氟丁基有机铵盐阳离子表面活性剂(简称表面活性剂)、用调聚法合成的三防织物整理剂(含固率23.7%,简称织物三防整理剂)、用电解氟化法合成的C4织物及C6织物三防整理剂的生态毒性,目的是为筛选安全高效的PFOS替代品提供科学依据。研究表明,表面活性剂与三防织物整理剂对跳虫急性毒性的LC50(7d)分别为4959和1007mg·kg-1,而C4与C6整理剂对跳虫急性毒性的LC50(7d)均大于5000mg·kg-1;表面活性剂、织物三防整理剂与C4整理剂对跳虫慢性毒性的EC50(28d)分别为0.15、0.12和0.18mg·kg-1,而C6织物三防整理剂对跳虫慢性毒性的EC50(28d)大于1mg·kg-1;4种替代品生态毒性顺序为织物三防整理剂>表面活性剂>C4>C6织物三防整理剂。通过与本实验室PFOS生态毒性的研究结果比较发现,除织物三防整理剂,其余3种替代品对跳虫的生态毒性作用均小于PFOS,其中C6整理剂对跳虫的毒性最小,有望成为替代PFOS的环保型织物整理剂。
Abstract： To provide a scientific basis for selecting safe and efficient substitutes, ecotoxicity of four substi- tutes （surfactant, textile finishing agent, CA finishing agent ＆ C6 finishing agent） of PFOS to springtails Folso- mia candida was assessed based on the number of survival and reproduction of springtails. LC50 values of surfactant and textile finishing agent in acute toxicity test were 4 959 and 1 007 mg.kg 1, respectively, and that of C4 and C6 finishing agent were both higher than 5 000 mg·kg^-1. ECs0values in chronic reproduction toxicity test were 0.15, 0.12 and 0.18 mg.kg 1for surfactant, textile finishing agent and C4 finishing agent, respectively. EC50value of C6 finishing agent was higher than 1 mg.kg 1. The order of toxicity for four alternatives was tex- tile finishing agent 〉 surfactant 〉 C4 〉 C6 finishing agent. All alternatives except textile finishing agent have aless toxicity than PFOS to the survival and reproduction of springtails. Most of all, C6 finishing agent with lit- tle ecotoxicity could be able to replace PFOS as an environment-fiiendly finishing agent.
出处
《生态毒理学报》
CAS
CSCD
北大核心
2012年第5期501-507,共7页
Asian Journal of Ecotoxicology
基金
国家高技术研究发展计划(863)项目(No.2010AA065105)
关键词
PFOS替代品
跳虫
急性毒性
慢性毒性
PFOS alternatives
springtails
acute toxicity
chronic toxicity
