文章基本信息

标题：Analysis, toxicity, occurrence and biodegradation of nonylphenol isomers: A review
本地全文：下载
作者：Zhijiang Lu ; Zhijiang Lu ; Jay Gan 等
期刊名称：Environment International
印刷版ISSN：0160-4120
电子版ISSN：1873-6750
出版年度：2014
卷号：73
页码：334-345
DOI：10.1016/j.envint.2014.08.017
语种：English
出版社：Pergamon
摘要：Abstract Over the last two decades, nonylphenols (NPs) have become to be known as a priority hazardous substance due primarily to its estrogenicity and ubiquitous occurrence in the environment. Nonylphenols are commonly treated as a single compound in the evaluation of their environmental occurrence, fate and transport, treatment or toxicity. However, technical nonylphenols (tNPs) are in fact a mixture of more than 100 isomers and congeners. Recent studies showed that some of these isomers behaved significantly differently in occurrence, estrogenicity and biodegradability. The most estrogenic isomer was about 2 to 4 times more active than tNP. Moreover, the half lives of the most recalcitrant isomers were about 3 to 4 times as long as those of readily-biodegradable isomers. Negligence of NP's isomer specificity may result in inaccurate assessment of its ecological and health effects. In this review, we summarized the recent publications on the analysis, occurrence, toxicity and biodegradation of NP at the isomer level and highlighted future research needs to improve our understanding of isomer-specificity of NP. Highlights • Isomer selectivity exists in occurrence, toxicity and biodegradation of nonylphenol. • Isomers with bulky α-substituents are recalcitrant to biodegradation. • Bulkiness at β and γ carbons increases the estrogenicity of nonylphenol isomers. • Two dimensional GC methods may substantially increase nonylphenol isomer separation.
关键词：Alkylphenol; Isomer specificity; Biodegradation; Occurrence; Analysis; Estrogenicity;