金属吡啶硫酮在海洋环境中的污染现状和毒性研究进展
发布时间：2019-01-08 19:06
【摘要】：金属吡啶硫酮(MePTs)作为三丁基锡(TBT)替代品,已成为防污涂料中最有效的活性成分之一。目前为止已在沉积物和生物体中检出几十到几百μg/kg水平的MePTs残留;MePTs在环境中易光解,半衰期一般在数分钟,主要降解产物有金属离子和2,2′-二硫二吡啶((PS)2)等;MePTs能对鱼类鳃组织造成损伤,并具有基因毒性、生长发育毒性和生殖毒性;尽管MePTs易光解且在无光照的沉积物环境中也会被催化降解,但MePTs具有与TBT相当甚至更强的急性毒性;(PS)2对虎斑猛水蚤和真鲷具有较强的急性毒性,可导致鱼类胚胎脊索发育畸形,MePTs降解产物的毒性不容忽视,MePTs及其降解产物的环境安全性尚需深入研究。
[Abstract]:Pyridine thione (MePTs), as a substitute for triDing Ji tin (TBT), has become one of the most effective active components in antifouling coatings. Up to now, tens to hundreds of 渭 g/kg MePTs residues have been detected in sediments and organisms. MePTs is easily photolysis in the environment, and its half-life is usually several minutes. The main degradation products are metal ions and (PS) _ 2). MePTs can damage the Gill tissue of fish, and it has genetic toxicity, growth toxicity and reproductive toxicity. Although MePTs is easy to photolysis and can be degraded in the environment without light, MePTs has the same or even stronger acute toxicity as TBT. (PS) _ 2 has a strong acute toxicity to Daphnia Tigris and Sparus macrocephalus, which can lead to chordal malformation of fish embryo. The toxicity of MePTs degradation products can not be ignored. The environmental safety of MePTs and its degradation products need to be further studied.
【作者单位】： 中国海洋大学海洋生命学院;
【基金】：国家自然科学基金项目(41676100)资助~~
【分类号】：X55
，
本文编号：2405007
[Abstract]:Pyridine thione (MePTs), as a substitute for triDing Ji tin (TBT), has become one of the most effective active components in antifouling coatings. Up to now, tens to hundreds of 渭 g/kg MePTs residues have been detected in sediments and organisms. MePTs is easily photolysis in the environment, and its half-life is usually several minutes. The main degradation products are metal ions and (PS) _ 2). MePTs can damage the Gill tissue of fish, and it has genetic toxicity, growth toxicity and reproductive toxicity. Although MePTs is easy to photolysis and can be degraded in the environment without light, MePTs has the same or even stronger acute toxicity as TBT. (PS) _ 2 has a strong acute toxicity to Daphnia Tigris and Sparus macrocephalus, which can lead to chordal malformation of fish embryo. The toxicity of MePTs degradation products can not be ignored. The environmental safety of MePTs and its degradation products need to be further studied.
【作者单位】： 中国海洋大学海洋生命学院;
【基金】：国家自然科学基金项目(41676100)资助~~
【分类号】：X55
，
本文编号：2405007
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