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典型烧结厂周边土壤多氯联苯的环境污染特征

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廖晓, 肖滋成, 伍平凡, 李海凤, 韩莹, 王梦京, 陈学斌, 刘文彬. 典型烧结厂周边土壤多氯联苯的环境污染特征[J]. 环境化学, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
引用本文: 廖晓, 肖滋成, 伍平凡, 李海凤, 韩莹, 王梦京, 陈学斌, 刘文彬. 典型烧结厂周边土壤多氯联苯的环境污染特征[J]. 环境化学, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
shu
LIAO Xiao, XIAO Zicheng, WU Pingfan, LI Haifeng, HAN Ying, WANG Mengjing, CHEN Xuebin, LIU Wenbin. Environmental pollution characteristics of polychlorinated biphenyls in the soil around a typical sintering plant[J]. Environmental Chemistry, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
Citation: LIAO Xiao, XIAO Zicheng, WU Pingfan, LI Haifeng, HAN Ying, WANG Mengjing, CHEN Xuebin, LIU Wenbin. Environmental pollution characteristics of polychlorinated biphenyls in the soil around a typical sintering plant[J]. Environmental Chemistry, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
shu

典型烧结厂周边土壤多氯联苯的环境污染特征

  • 1.

    湖北工业大学, 武汉, 430068;

  • 2.

    中国科学院生态环境研究中心, 北京, 100085

  • 基金项目:

    国家973计划(2015CB453103)

    中国科学院战略性先导科技专项(XDB14020100)

    国家自然科学基金(21477150,21321004)资助.

Environmental pollution characteristics of polychlorinated biphenyls in the soil around a typical sintering plant

  • 1.

    Hubei University of Technology, Wuhan, 430068, China;

  • 2.

    Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China

  • Fund Project:

  • 摘要: 本文以唐山某典型烧结厂为研究对象,对铁矿石烧结厂排放的烟气及周边土壤样品进行采集,应用同位素稀释高分辨气相色谱-高分辨质谱联用法(HRGC/HRMS)测定了多氯联苯(PCBs)的含量,并研究了PCBs的同类物分布特征. 其中烟气样品中类二英PCBs(dl-PCBs)总浓度为1.04-1.77 ngm-3,毒性当量值为8.99-19.32 pgWHO-TEQm-3. 烧结厂周边土壤样品中dl-PCBs的总浓度为8.81-403.59 pgg-1,毒性当量值为0.05-0.65 pgWHO-TEQg-1,是背景土壤样品的(0.035 pgWHO-TEQg-1)的1-19倍. 可以看出,该烧结厂周边环境土壤受到了企业所排放PCBs等有毒污染物的影响. 大部分土壤样品的同类物分布特征相似;CB-118对土壤dl-PCBs浓度贡献率最大,贡献率为31.74%. CB-101对土壤指示性PCBs浓度贡献率最大,贡献率为52.82%. 将土壤样品和烟气样品的同类物分布进行比较发现二者略有不同. 尽管都是以低氯代同类物为主,但是烟气样品中最高的同类物是TrCBs,且随着氯代数的增加,浓度呈现明显下降的趋势;而土壤样品PeCBs浓度最高,PeCBs前后都呈现逐级下降的趋势. 唐山市此烧结厂周边土壤无论是TEQ值,指示性PCBs总浓度,PCBs总浓度与其它研究相比都处于较高水平.
    Abstract: A typical sintering plant in Tangshan was selected for the study. The stack gas samples emitted from the sintering plant and soil samples around the sintering plant were collected. We investigated the concentrations of polychlorinated biphenyls in the stack gas and soil samples by High Resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS). Moreover, PCBs homologue profiles were analyzed. The total concentrations of dioxin-like polychlorinated biphenyls(dl-PCBs) in the stack gas samples ranged from 1.04 to 1.77 ngm-3, while the TEQ values ranged from 8.99 to 19.32 pgWHO-TEQm-3. The total concentrations of dl-PCBs in the soil samples ranged from 8.81 to 403.59 pgg-1, while the TEQ values ranged from 0.05 to 0.65 pgWHO-TEQg-1, which were one to nineteen times as high as the background sample (0.035 pgWHO-TEQg-1). Comparing this study with other studies worldwide suggests that PCBs emission from the sintering plant has a critical influence on PCBs concentrations in the surrounding soil. The PCBs homologue patterns were similar in most soil samples, CB-118 was the major congener of the dl-PCBs congeners, which contributed 31.74%. The predominant indicator PCB was CB-101 which contributed 52.82%. The homologue patterns in soil samples were slightly different from the stack gas homologue patterns. TrCBs were the highest congeners in the gas samples and the concentrations showed a clear declining trend with the increasing chlorination degrees. While PeCBs were the highest congeners in the soil samples, the concentrations decreased below or above 4 chlorine atoms. The TEQ values and the concentrations of indicator PCBs and total PCBs in the soil samples were relatively high as compared with those in other studies.
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  • 收稿日期:  2015-09-21
  • 刊出日期:  2015-12-15
廖晓, 肖滋成, 伍平凡, 李海凤, 韩莹, 王梦京, 陈学斌, 刘文彬. 典型烧结厂周边土壤多氯联苯的环境污染特征[J]. 环境化学, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
引用本文: 廖晓, 肖滋成, 伍平凡, 李海凤, 韩莹, 王梦京, 陈学斌, 刘文彬. 典型烧结厂周边土壤多氯联苯的环境污染特征[J]. 环境化学, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
shu
LIAO Xiao, XIAO Zicheng, WU Pingfan, LI Haifeng, HAN Ying, WANG Mengjing, CHEN Xuebin, LIU Wenbin. Environmental pollution characteristics of polychlorinated biphenyls in the soil around a typical sintering plant[J]. Environmental Chemistry, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
Citation: LIAO Xiao, XIAO Zicheng, WU Pingfan, LI Haifeng, HAN Ying, WANG Mengjing, CHEN Xuebin, LIU Wenbin. Environmental pollution characteristics of polychlorinated biphenyls in the soil around a typical sintering plant[J]. Environmental Chemistry, 2015, 34(12): 2191-2197. doi: 10.7524/j.issn.0254-6108.2015.12.2015092104
shu

典型烧结厂周边土壤多氯联苯的环境污染特征

  • 1.  湖北工业大学, 武汉, 430068;
  • 2.  中国科学院生态环境研究中心, 北京, 100085
  • 收稿日期:  2015-09-21
基金项目:

国家973计划(2015CB453103)

中国科学院战略性先导科技专项(XDB14020100)

国家自然科学基金(21477150,21321004)资助.

摘要: 本文以唐山某典型烧结厂为研究对象,对铁矿石烧结厂排放的烟气及周边土壤样品进行采集,应用同位素稀释高分辨气相色谱-高分辨质谱联用法(HRGC/HRMS)测定了多氯联苯(PCBs)的含量,并研究了PCBs的同类物分布特征. 其中烟气样品中类二英PCBs(dl-PCBs)总浓度为1.04-1.77 ngm-3,毒性当量值为8.99-19.32 pgWHO-TEQm-3. 烧结厂周边土壤样品中dl-PCBs的总浓度为8.81-403.59 pgg-1,毒性当量值为0.05-0.65 pgWHO-TEQg-1,是背景土壤样品的(0.035 pgWHO-TEQg-1)的1-19倍. 可以看出,该烧结厂周边环境土壤受到了企业所排放PCBs等有毒污染物的影响. 大部分土壤样品的同类物分布特征相似;CB-118对土壤dl-PCBs浓度贡献率最大,贡献率为31.74%. CB-101对土壤指示性PCBs浓度贡献率最大,贡献率为52.82%. 将土壤样品和烟气样品的同类物分布进行比较发现二者略有不同. 尽管都是以低氯代同类物为主,但是烟气样品中最高的同类物是TrCBs,且随着氯代数的增加,浓度呈现明显下降的趋势;而土壤样品PeCBs浓度最高,PeCBs前后都呈现逐级下降的趋势. 唐山市此烧结厂周边土壤无论是TEQ值,指示性PCBs总浓度,PCBs总浓度与其它研究相比都处于较高水平.

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