| 白银市不同功能区表层土壤中PCDD/Fs分布特征研究 |
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| 引用本文： | 刘晓平,任明忠,肖举强,张素坤,彭晓春,许振成,李晓娜.白银市不同功能区表层土壤中PCDD/Fs分布特征研究[J].农业环境保护,2010(6):1137-1143. |
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| 作者姓名： | 刘晓平 任明忠 肖举强 张素坤 彭晓春 许振成 李晓娜 |
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| 作者单位： | [1]兰州交通大学环境与市政工程学院,兰州730070 [2]环境保护部华南环境科学研究所,广州510655 [3]中原油田采油二厂油藏经营管理五区,河南濮阳457000 |
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| 基金项目： | “十一五”国家科技支撑（2007BAC16BO8） |
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| 摘 要： | 采用高分辨气相色谱高分辨质谱联用仪（HRGC/HRMS）对白银市不同功能区土壤样品中的17种2,3,7,8-PCDD/Fs的含量进行了测试,探讨了白银市典型区域表层土壤中PCDD/Fs的来源、分布特征。结果表明,白银市各类表层土壤中17种2,3,7,8-PCDD/Fs的I-TEQ浓度范围为0.42～8.56pg（I-TEQ）·g-1,均值为2.28pg（I-TEQ）·g-1,其中,工业区土壤中PCDD/Fs含量为0.42～8.56pg（I-TEQ）·g-1,均值为3.37pg（I-TEQ）·g-1;城市生活区PCDD/Fs的含量为0.50～1.83pg（I-TEQ）·g-1,均值为1.31pg（I-TEQ）·g-1;农业区含量为0.49～1.33pg（I-TEQ）·g-1,均值为1.01pg（I-TEQ）·g-1;两个背景点PCDD/Fs的含量分别为0.60和1.10pg（I-TEQ）·g-1。研究区域内PCDD/Fs的含量呈现工业区〉城市生活区〉农业区〉背景区的趋势,高氯代的PCDD/Fs异构体对土壤中二恶英毒性当量的贡献率较大。
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| 关 键 词： | 白银市 PCDD/Fs 表层土壤 分布 |
The Distribution Characteristics of PCDD/Fs in Surface Soils from Different Areas of Baiyin City,China |
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| LIU Xiao-ping,REN Ming-zhong,XIAO Ju-qiang,ZHANG Su-kun,PENG Xiao-chun,XU Zhen-cheng,LI Xiao-na.The Distribution Characteristics of PCDD/Fs in Surface Soils from Different Areas of Baiyin City,China[J].Agro-Environmental Protection,2010(6):1137-1143. |
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| Authors: | LIU Xiao-ping REN Ming-zhong XIAO Ju-qiang ZHANG Su-kun PENG Xiao-chun XU Zhen-cheng LI Xiao-na |
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| Institution: | 1.School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;2.South China Institute of Environmental Sciences,Guangzhou 510655,China;3.The 2d Oil Production Factory,Zhongyuan Oil Field,Puyang 457000,China) |
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| Abstract: | The concentrations of seventeen PCDD/Fs components in 23 surface soil samples collected from different regions of Baiyin City were determined using HRGC/HRMS.The range of 2,3,7,8-PCDD/Fs in the soils samples was 0.42～8.56 pg（I-TEQ）·g-1 with an average value of 2.28 pg（I-TEQ）·g-1.The concentrations of PCDD/Fs in the samples from the local industrial,urban,agricultural and background areas were 0.42～8.56 pg（I-TEQ）·g-（1average at 3.37 pg（I-TEQ）·g-1）,0.50～1.83 pg（I-TEQ）·g-（1average at 1.31 pg（I-TEQ）·g-1）,0.49～1.33 pg（I-TEQ）·g-（1average at 1.01 pg（I-TEQ）·g-1）,and 0.60～1.10 pg（I-TEQ）·g-（1average at 0.85 pg（I-TEQ）·g-1）,respectively.The concentration results showed an order as industrial land urban land agricultural land background land.The high chloro-isomers of PCDD/Fs were the dominant contributor of TEQ in most of the samples in this study. |
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| Keywords: | Baiyin City PCDD/Fs surface soil distribution |
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