六溴环十二烷(HBCDs)的环境污染现状及分析方法进展(精)
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六溴环十二烷(HBCDs)的环境污染现状及分析方法进展
李红华,王亚韡,王璞,李晓敏,张庆华*
中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室,100085,北京
E-mail: qhzhang@
六溴环十二烷(HBCDs)是一种高溴脂环族添加型阻燃剂,是多溴联苯醚(PBDEs)、四溴双酚A(TBBPA)之外的世界第三大溴代阻燃剂。HBCDs可以通过多种途径释放到环境中,其污染已经成为全球性的环境问题。作为斯德哥尔摩公约持久性有机污染物(POPs)候选名单中的一类化合物,2009年10月在瑞士日内瓦举行的POPs公约审查委员会通过了HBCD关于公约附件D的审核。本文依据近几年国内外学者对HBCDs的研究进展,系统分析了HBCDs在大气、土壤、沉积物、水生生物、鸟类、食品中的污染水平和分布特征,同时对HBCDs的毒理、暴露、生物转化、代谢等进行了简要的总结,对分析HBCDs所应用的GC-MS、HPLC-MS、HPLC-MS/MS等方法进行了对比和评价。我国的HBCDs研究尚处于起步阶段,目前仅有广州大气中HBCDs的污染水平和经食品暴露的人体HBCDs污染水平等有报导,对全国范围内HBCDs的污染状况、环境行为研究以及环境健康风险评估尚无系统的数据。
关键词:六溴环十二烷;环境污染
Environmental pollution and Progress of method study on HBCDs Hong-Hua Li, Ya-wei Wang, Pu Wang, Xiao-Min Li, *Qing-Hua Zhang
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085, Beijing
Hexabromocyclododecanes (HBCDs), known as the third important brominated flame retardants after polybrominated diphenyl ethers (PBDEs) and tetrabromobisphenol A (TBBPA), are high brominated aliphatic cyclic hydrocarbons. HBCDs can enter the environment through several pathways, causing great attention in recent years. As a group of candidate POPs to the Stockholm Convention (SC), HBCDs have been evaluated against the criteria of Annex D of SC by POP review committee (POPRC) in 2009. This review concluded the recent researches on distribution and concentration levels of HBCDs in atmosphere, soil, sediment, aquatic organism, birds, and foods. Their toxicity, exposure, biotransformation, and metabolites, analytical methods such as GC-MS, HPLC-MS, HPLC-MS/MS are also discussed. In China, as we know, the related studies are only reported in the atmosphere of Guangzhou, dietary exposure assessment of Chinese adults and infants to HBCDs. Further works should be focused on the concentration levels, environmental behavior of HBCDs and risk to the environment and human health in a large scare.