摘要
环境中多环芳烃衍生物(SPAHs)来源广泛,具有“三致”效应,毒性与PAHs母体相当甚至高于母体,是一类具有较高风险的新型有机污染物.大气和表层水体等环境介质中,光化学降解是其重要的消减方式.在梳理文献的基础上,发现SPAHs在来源、分布、行为和风险研究方面与传统污染物PAHs相比有了新的突破.通过总结新污染物SPAHs的环境分布特征与光化学行为研究的最新进展,介绍了3类SPAHs的来源和形成机制,重点评述了不同环境介质中的存在状况与分布特征,讨论了水、冰等介质中SPAHs光化学转化动力学、反应路径以及影响因素,最后对SPAHs的环境行为和风险研究进行了展望.
Substituted polycyclic aromatic hydrocarbons(SPAHs)are a type of emerging pollutant that widely exist in the environment,which also exhibit carcinogenicity,mutagenicity,and teratogenicity.These pollutants belong to toxic pollutants because of their similar structures to polycyclic aromatic hydrocarbons(PAHs).Their environmental behavior and ecological risk have attracted increasing attention.Based on a literature review,we found a new breakthrough in the source,distribution,behavior,and risk of SPAHs with comparison to traditional pollutants PAHs.This paper reviewed the current research progress on the environmental occurrence and photochemical behavior of SPAHs.Their sources,formation mechanisms,and distribution characteristics in the multimedia environment were highlighted,and the photochemical transformation kinetics,pathways,and affecting factors of SPAHs in water,ice,and other media were discussed.Furthermore,the research prospects about the environmental behavior and risk of SPAHs were proposed.
作者
葛林科
王子宇
曹胜凯
车晓佳
朱超
张蓬
马宏瑞
GE Lin-ke;WANG Zi-yu;CAO Sheng-kai;CHE Xiao-jia;ZHU Chao;ZHANG Peng;MA Hong-rui(School of Environmental Science and Engineering,Shaanxi University of Science&Technology,Xi'an 710021,China)
出处
《环境科学》
EI
CAS
CSCD
北大核心
2023年第7期3957-3969,共13页
Environmental Science
基金
国家环境保护近岸海域生态环境重点实验室开放基金项目(202102)
国家自然科学基金项目(21976045,22076112)
中国科学院海岸带环境过程与生态修复重点实验室开放基金项目(2020KFJJ03)
国家水体污染控制与治理科技重大专项(2017ZX07602-001)。
关键词
多环芳烃衍生物
生成机制
分布特征
光化学行为
影响因素
substituted polycyclic aromatic hydrocarbons
formation mechanisms
distribution characteristics
photochemical behavior
affecting factors
