摘要
本文检测了我国内蒙古地区工业区、农业区、牧区的33个土壤样品中6种新型溴代阻燃剂(NBFRs)和2种德克隆(DPs)浓度水平,探讨它们在不同功能区的分布特征和主要来源.结果显示,∑_(6)NBFRs和∑_(2)DPs浓度范围分别是1.06—981.51 pg·g^(-1)dw(干重)、ND—352.53 pg·g^(-1)dw,与国内外相比均处于较低的污染水平.NBFRs平均浓度表现出工业区>农业区>牧区的趋势,而不同类型表现出TBPH>PBBA>HBB>PBT>PBBz>PBEB的趋势.DPs平均浓度在工业区最高.研究发现,HBB在迁移过程容易发生降解,PBBA、TBPH、DPs迁移能力偏弱,主要影响污染源的周边环境,PBBz和PBT迁移能力较强,主要来自于低海拔地区的远距离输送,并已成为内蒙古地区的普遍污染物质.
The distribution and source of novel brominated flame retardants(NBFRs)and dechlorane plus(DPs)in soils of industrial,agricultural and pastoral areas in Inner Mongolia were investigated.The total concentrations of ∑_(6)NBFRs and ∑_(2)DPs ranged from 1.06 to 981.51 pg·g^(-1)dw(dry weight),and from ND to 352.53 pg·g^(-1)dw,respectively,which were lower than those in other regions.The average total concentration of NBFRs in different functional zones decreased in the order industrial area>agricultural area>pastoral area,and the average concentration of different types of NBFRs decreased in the order TBPH>PBBA>HBB>PBT>PBBz>PBEB,respectively.The average total concentration of DPs in the industrial area was the highest among them.It was found that HBB was easy to degrade in the process of migration.PBBz,TBPH,DPs had weak migration ability,which mainly affected the surrounding environment of pollution sources.PBBz and PBT had strong migration ability,which mainly came from the long-distance transportation in low altitude areas,and have become the common pollutants in Inner Mongolia.
作者
张爱芹
陈易静
柳晨
娄新宇
刘名卉
金军
ZHANG Aiqin;CHEN Yijing;LIU Chen;LOU Xinyu;LIU Minghui;JIN Jun(College of Life and Environmental Sciences,Minzu University of China,Beijing,100081,China)
出处
《环境化学》
CAS
CSCD
北大核心
2020年第12期3495-3503,共9页
Environmental Chemistry
基金
中央民族大学生态学一流学科建设项目(Yldxxk201819)资助
作者简介
通讯联系人:金军,Tel:18910087635,E-mail:junjin3799@126.com
