本文报告特种无病源小白鼠连续暴露于低浓度CO、NO_2、O_3、SO_2组成的综合烟雾8—12个月所引起的肺部反应。过滤空气室和综合烟雾暴露室大小相同,均为20×12×10呎密闭的空调室,供以用纯净微粒活性炭过滤的空气。烟雾室接受来自压缩空气瓶的NO_2和SO_2,O_3来自电发生器,在过滤空气室和烟雾室内的CO来自周围空气,气体浓 This article reports the pulmonary reactions caused by continuous exposure of special-disease-free mice to a combination of low concentrations of CO, NO 2, O 3 and SO 2 for 8-12 months. Filter air room and integrated smoke exposure room the same size, are 20 × 12 × 10-foot closed air-conditioned room for the use of pure particulate activated carbon filter air. The smoke chamber receives NO 2 and SO 2 from the compressed air bottle, O 3 comes from the electrical generator, the CO in the filtering air chamber and the smoke chamber comes from the surrounding air, and the gas is concentrated