作者研究目的是在于确定慢性吸入柴油机废气是否能对肺动力学及肺容量产生影响及了解柴油机排出的一种可被吸入并能滞留在肺中的微粒物质对肺结构和组成方面可能产生的变化。Battigelli等人对铁路机车司机职业接触柴油机废气的研究未见柴油机废气对肺功有明显的影响。瑞典Jorgensen The aim of the study was to determine whether chronic inhalation of diesel exhaust could affect pulmonary dynamics and lung capacity and to understand possible changes in lung structure and composition of a particulate matter that can be drawn in and reside in the lungs of diesel engines . Battigelli et al. Did not find any significant effect of diesel engine exhaust on lung function in the study of occupational contact with diesel locomotives by railway locomotive drivers. Sweden Jorgensen