现就三年来对我厂托儿所500名1～5岁的入托及非入托的厂职工家属儿童,以及来门诊就医的儿童进行观察与了解父母及同居亲属吸烟情况,发现了烟气与患病的关系。通过香烟的烟气对小儿肺炎及急慢性支气管炎的病例观察表明,烟气是一种呼吸道刺激物质,到目前为止发现香烟本身及其在燃烧产物中 Now on the three years of my factory nursery 500 1 to 5-year-old nursery and non-nursery plant workers and their children, as well as to the outpatient and medical treatment of children to observe and understand the smoking of parents and relatives living together and found that flue gas and sick relationship. Observations on cases of pediatric pneumonia and acute and chronic bronchitis through the smoke of cigarettes have shown that flue gas is a respiratory irritant and so far it has been found that the cigarettes themselves and their products of combustion