呼吸散发挥发性有机化合物的实验研究
Experimental research on volatile organic compounds (VOC) in normal human exhaled breath
摘要：
人员密度大的空间如会议室、礼堂、体育馆和飞机、高铁车厢等场所人呼吸产生的挥发性有机化合物（VOC）是重要污染物散发源。目前的研究大多针对医学领域以及环境暴露水平监测领域，存在领域的局限性和数据库的局限性。为研究室内空气中人体呼吸散发VOC的规律，对呼吸采样装置进行了开发与优化，利用气相色谱-质谱（GC/MS）技术进行了定性和定量的分析。对111人次的呼出气进行采样，发现呼出气VOC个体差异性大,但是还是有一定的共性物质。证明呼吸散发VOC是影响室内空气质量不容忽视的污染源。这项研究可为现行人工环境的合理通风设计提供参考依据。
Abstract：
Volatile organic compounds (VOC) in human exhaled breath in crowded environment, such as meeting rooms, auditoriums, gymnasiums, airplanes and trains, are important pollutant source. Current research mainly aims at medical and environmental exposure fields where there is the limitation in the application fields and database. In order to study the emission rule of the VOC, develops and optimizes a breath sampling device. By means of gas chromatography-mass spectrometry (GC/MS), makes a qualitative and quantitative analysis. Collects the exhaled breath samples of 111 subjects. The result shows that there is large differences of VOC among different individuals and there is also something in common. It proves that VOC in human exhaled breath are the pollutant sources which can not be neglected. This work can be used as a reference for the reasonable design of ventilation system of artificial environment.
Keywords:volatile organic compounds (VOC),human exhaled breath,indoor air quality (IAQ),environment with crowded people,air pollutant