塑胶跑道上空空气中挥发性有机化合物的成分特征研究

Volatile Organic Compounds Characteristics in the Air above Plastic Runway

采用气相色谱一质谱联用（GC-MS）技术对SUMMA罐收集的塑胶跑道上空空气进行挥发性有机化合物（VOCs）的定性定量检测，检测出其空气中的VOCs覆盖了烷烃、烯烃、炔烃、芳香烃、卤代烃、含氧类有机物和含氮类有机物等7大类，共92种，且高碳烷烃（C6～C12）、卤代烷烃和苯系物的有机物单体数量较多，含氧类有机物的检出质量浓度最高。VOCs单体的检出率集中在76．47％以上，平均检出质量浓度主要集中在小于等于1．00μg／m^3，且丙酮的平均检出质量浓度最大。

This work collected the air over plastic runway by SUMMA canister and detected by gas chromatography-mass spectrom- etry.92 Kinds of VOCs were detected included alkane, alkene, alkyne, aromatic hydrocarbon, halogenated hydrocarbon, oxy-organ- ics and nitrogenous organic compounds. High carbon alkanes （C6-C12）,halogenated alkanes and benzene have more organic monomers,and oxy-organics have the highest quality concentrations.The detection rate of each organic monomer was concentrated over 76.47% ,the average quality concentration mainly under or equal to 1.00 μg/m3 and acetone was the highest in average quality concentration.