宁东能源化工基地核心区表层土壤酚类污染物 的污染评价、空间分布及来源解析  

Contamination assessment,spatial distribution and source apportionment of phenolic pollutants in topsoil of core area of Ningdong energy and chemical industry base

作　　者：钟艳霞 肖俊丞[3] 杨帆 王幼奇[3] 白一茹[3] 罗红雪[3] ZHONG Yanxia;XIAO Juncheng;YANG Fan;WANG Youqi;BAI Yiru;LUO Hongxue(Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China,Ningxia University,Yinchuan 750021,China;Key Laboratory of Ministry of Education for Restoration and Reconstruction of Degraded Ecosystem in Northwest China,Ningxia University,Yinchuan 750021,China;College of Resources and Environmental Science,Ningxia University,Yinchuan 750021,China)

机构地区：[1]宁夏大学西北土地退化与生态恢复省部共建国家重点实验室培育基地,宁夏银川750021 [2]宁夏大学西北退化生态系统恢复与重建教育部重点实验室,宁夏银川750021 [3]宁夏大学资源环境学院,宁夏银川750021

出　　处：《化工环保》2021年第1期112-119,共8页Environmental Protection of Chemical Industry

基　　金：宁夏回族自治区重点研发计划重大项目(2018BFG0-2016);宁夏自然科学基金项目(2020AAC03052,2018AAC03027)。

摘　　要：采集了宁东能源化工基地核心区的146个表层土壤样品,检测了6种优控酚类污染物。运用单因子污染指数、内梅罗综合污染指数和致癌风险指数评价了酚类污染物的污染程度及健康风险。借助主成分分析和绝对主成分分数-多元线性回归受体模型,结合地统计学方法,对酚类污染物的空间分布及来源进行了分析。结果显示:2,4-二氯酚和2,4,6-三氯酚处于清洁水平,五氯酚在部分区域为重度污染;苯酚、2,4-二氯酚、2,4,6-三氯酚为可接受风险,五氯酚在部分区域为不可接受风险;苯酚、4-硝基酚、间-甲酚和2,4-二氯酚的来源以交通源为主,2,4,6-三氯酚和五氯酚的来源以工业活动源为主。A total of 146 topsoil samples were collected from the core area of Ningdong energy and chemical industry base,and 6 phenolic pollutants for priority control were detected.The pollution degree and health risks of phenolic pollutants were evaluated,their spatial distribution and source were analyzed.The results show that:2,4-dichlorophenol and 2,4,6-trichlorophenol(TCP)are in a clean level,but some areas are heavily polluted by pentachlorophenol;The risk of phenol,2,4-dichlorophenol and TCP are acceptable,while the risk of pentachlorophenol is unacceptable in some areas;The main sources of phenol,4-nitrophenol,m-cresol and 2,4-dichlorophenol are from traffic,the sources of TCP and pentachlorophenol are mainly from industrial activities.

关 键 词：酚类污染物 健康风险评价 来源解析 空间分布 

分 类 号：X825[环境科学与工程—环境工程]