中文摘要：

以华北某粗苯，精苯储罐场地为研究对象，采用半透膜介质探测系统（membraneinterfaceprobe，MIP）和配备光离子检测器（photoionizationdetector，PID）的便携式气相色谱仪（portablegaschromatograph）进行土壤中苯系物电信号值的现场检测，利用传统的采样与分析方法对半透膜介质探测系统和便携式气相色谱仪现场测试结果进行了验证。结果表明，土壤中总苯系物（TBTEX）的含量实测值和MIP—PID检测器电信号值具有一定的关联性，其回归方程为：y=一0．028X％166．92X＋41694（R=0．9481，n=60）；基于15个MIP作业点的MIP—FID检测器电信号值，采用环境可视化软件EVS—Pro（environmentalvisualizationsystem）建立了该场地包气带土壤中总苯系物电信号值的三维图，并确认了该场地苯系物污染范围。

英文摘要：

Membrane interface probe （MIP） and portable gas chromatograph combined with photo ionization detector （PIO） were used to detect electrical signal of TBTEX at a crude/pure benzene storage tank site in North China. Traditional sampling and analyzing methods were used to establish the correlations between MIP-PID data and the concentration of BTEX in soil. Results showed that there is a polynomial regression between electrical signal obtained from MIP-PID and the concentration of TBTEX in soil obtained from traditional technologies with equation as Y=-O.O28X2＋166.92X＋41 694;R2=0.948 1,n=60. Three-dimensional image showing TBTEX electrical signal was obtained by the three-dimensional software package EVS- Pro based on 15 MIP borings data, and BTEX pollution plume was recognized in subsurface soil in this site.