手性污染物六溴环十二烷在食物链传递中的选择性及生物放大作用研究进展
发布时间：2018-08-24 20:13
【摘要】：六溴环十二烷(HBCDs)是一种全球生产的添加型溴化阻燃剂,被广泛应用于隔热建筑材料阻燃剂、室内装潢、纺织品和电子产品中,不仅对生态环境造成污染,而且还会通过食物链的传递危害人类健康。研究生态系统中HBCDs异构体及对映体的环境行为与生物放大作用是进行环境风险评估和有效控制污染的生态学基础。基于此,本文从HBCDs的基本特性出发,阐述了HBCDs异构体及对映体在食物链中的选择性生物富集放大及转化行为,分析了发生选择性富集及转化的影响因素,这些因素包括生物体的生活环境、饮食习惯、所处食物链中营养级水平以及HBCDs选择性吸收、代谢和异构化等。已有的研究报道显示HBCDs异构体及对映体在生态系统中的富集、转化及生物放大行为不是单一的过程,是生物体和环境多因素综合的结果。今后应对HBCDs异构体及对映体在各种食物链(如淡水食物链和陆生食物链)中的选择性环境行为以及在食物链传递中发生选择性的主控因素等方面进行深入系统的研究,为全面评价其生态风险提供科学依据。
[Abstract]:Hexabromocyclododecane (HBCDs) is a kind of additive brominated flame retardant, which is widely used in thermal insulation building materials, interior decoration, textiles and electronic products. And it also harms human health through the transmission of the food chain. The study of the environmental behavior and biomagnification of HBCDs isomers and enantiomers is the ecological basis for environmental risk assessment and effective pollution control. Based on this, the behavior of selective bioconcentration and transformation of HBCDs isomers and enantiomers in the food chain was discussed, and the influencing factors of selective enrichment and transformation of HBCDs isomers and enantiomers in food chain were analyzed. These factors include living environment, eating habits, nutritional level in the food chain and HBCDs selective absorption, metabolism and isomerization. It has been reported that the enrichment, transformation and biomagnification of HBCDs isomers and enantiomers in the ecosystem are not a single process, but are the result of multiple factors of organism and environment. In the future, the selective environmental behavior of HBCDs isomers and enantiomers in various food chains, such as freshwater and terrestrial food chains, as well as the main controlling factors of selectivity in food chain transmission, should be studied systematically and in depth. To provide scientific basis for comprehensive evaluation of ecological risk.
【作者单位】： 国家地质实验测试中心;中国农业科学院农业质量标准与检测技术研究所;
【基金】：国家自然科学基金资助项目(21307018,41171370,41473008) 中国地质调查局地质调查项目(DD20160095-5) 中国地质科学院基本科研业务费项目(CSJ201601)
【分类号】：X171
本文编号：2201912
[Abstract]:Hexabromocyclododecane (HBCDs) is a kind of additive brominated flame retardant, which is widely used in thermal insulation building materials, interior decoration, textiles and electronic products. And it also harms human health through the transmission of the food chain. The study of the environmental behavior and biomagnification of HBCDs isomers and enantiomers is the ecological basis for environmental risk assessment and effective pollution control. Based on this, the behavior of selective bioconcentration and transformation of HBCDs isomers and enantiomers in the food chain was discussed, and the influencing factors of selective enrichment and transformation of HBCDs isomers and enantiomers in food chain were analyzed. These factors include living environment, eating habits, nutritional level in the food chain and HBCDs selective absorption, metabolism and isomerization. It has been reported that the enrichment, transformation and biomagnification of HBCDs isomers and enantiomers in the ecosystem are not a single process, but are the result of multiple factors of organism and environment. In the future, the selective environmental behavior of HBCDs isomers and enantiomers in various food chains, such as freshwater and terrestrial food chains, as well as the main controlling factors of selectivity in food chain transmission, should be studied systematically and in depth. To provide scientific basis for comprehensive evaluation of ecological risk.
【作者单位】： 国家地质实验测试中心;中国农业科学院农业质量标准与检测技术研究所;
【基金】：国家自然科学基金资助项目(21307018,41171370,41473008) 中国地质调查局地质调查项目(DD20160095-5) 中国地质科学院基本科研业务费项目(CSJ201601)
【分类号】：X171
【相似文献】
相关期刊论文 前1条
1 包国章,李向林,谢忠雷,洪梅;生物放大作用的危害及预防[J];中国环境管理;2001年03期
相关硕士学位论文 前1条
1 虎贞贞;红树林地区常见鱼类对重金属的生物放大作用的研究[D];厦门大学;2009年
，本文编号：2201912
本文链接：https://www.wllwen.com/kejilunwen/huanjinggongchenglunwen/2201912.html
最近更新
教材专著
