在农村肺癌高发区云南省宣威县现场,设煤烟组、柴烟组和对照组,使小鼠和大鼠自然地吸入煤烟、柴烟和空气,并分析动物室内BaP和TSP等5种化学物质。分别经15个月和19个月的实验观察,获得诱发肺癌有规律性的阳性结果。两种动物的肺癌发生率,均为煤烟组高于柴烟组、高于对照组,组间有非常显著性差异。 In the high incidence area of ​​rural lung cancer in Xuanwei County, Yunnan Province, soot groups, firewood group and control group were set up, and mice and rats were naturally inhaled with soot, wood smoke and air, and indoor animal experiments such as BaP and TSP.5 Chemical species. After 15 months and 19 months of experimental observation, to obtain regularity of lung cancer induced positive results. The incidence of lung cancer in both animals were higher in the soot group than in the control group, with significant differences between the two groups.