摘要
氯苯甲醚类化合物(CAs)是葡萄酒和饮用水中普遍存在和亟待去除的嗅味物质,在世界各地不同介质中均可发现CAs的存在。CAs主要来自于五氯酚及其钠盐的微生物降解产物,具有持久性和可远距离迁移等持久性有机污染物(POPs)属性,此外该类污染物还具有生殖毒性和神经毒性等。目前国内外尚未建立CAs测定的标准方法。以CAs中嗅味阈值最低的2,4,6-三氯苯甲醚(TCA)和毒性最强且近年被列为POPs的五氯苯甲醚(PCA)为主要研究对象,对CAs污染物的来源及分布、产生机理、代谢转化与毒性效应、检测及去除方法展开论述。研究表明:CAs是一类污染来源和分布范围广,具有一定的毒性效应的物质,目前有关CAs的研究较少,今后应加强对CAs的环境迁移转化规律和毒理学研究。
removed. Chloroanisoles （CAs） are common odorous substances in wine and drinking water needing to be CAs exist in different media in different parts of the world. They are often reported as off-flavor compounds which produce an earthy and musty flavors and odors in wine and drinking water, and are mainly from the degradation products of pentaehlorophenols （PCP） and sodium salts. CAs have the properties of strong durability and long-range transport properties as POPs, especially the properties of reproductive toxicity and neurotoxicity. However, there are no standard methods for the determination of CAs in the world. Two kinds of CAs, 2,4,6-Trichloroanisole （TCA） and Pentaehloroanisole （PCA）, were studied, of which TCA has the lowest odor threshold and PCA has the highest toxicity. The source and distribution, production mechanism, metabolic transformation, toxic effects, detection and removal methods of CAs were discussed. To conclude, CAs are widely distributed with certain toxic effects. In the future, further study on the environmental migration, transformation laws and toxicology of CAs should be strengthened.
出处
《环境工程技术学报》
CAS
2017年第3期357-365,共9页
Journal of Environmental Engineering Technology
基金
国家自然科学基金项目(21377168)
作者简介
任敏（1989-），女，硕士，主要从事环境中有机物分析检测研究，kkkrenminkkk@126．com
赵高峰（1978-），男，教授级高级工程师，博士，长期从事环境化学与毒理研究，zhaogf@iwhr．com
