美国及西欧等国从８０年代开始，研究环境空气中苯的污染和非职业暴露人群的个体接触量［１，２］。我国在这方面的研究起步较晚，原因是缺乏适用于低浓度苯的个体采样器。我们以活性炭纤维（ＡＣＦ）为吸附材料，建立了被动式个体采样器采样／二次热解吸／毛细管气相色谱法测 Since the 1980s, the United States and Western European countries have studied the levels of benzene pollution in the ambient air and individual exposure to non-exposed workers [1,2]. Our research in this area started late because of the lack of individual samplers suitable for low concentrations of benzene. We use activated carbon fiber (ACF) as adsorbent to establish a passive individual sampler / secondary pyrolysis / capillary gas chromatography