生产车间职业性因素对小气道的影响,国内外报道甚少。为了探索低浓度刺激性气体对生产工人小气道功能的影响,进行了本次探索性观察。一、对象与方法1.对象选择:选某电子管厂酸洗车间四酸浓度均在国家标准范围内(HCl 0～3mg/m~3,H_2SO_4、HNO_3为1～2mg/m~3,HF为0.5～1mg/m~3)。接触工人经体检无呼吸道、心血管疾患,无胸部手术史,亦 Production workshop occupational factors on the impact of small airways, few reports at home and abroad. In order to explore the impact of low concentrations of irritating gases on the production of small airway function, conducted this exploratory observation. First, the object and method 1. Object Selection: Select a tube factory acid pickling plant four acid concentrations are in the national standard range (HCl 0 ~ 3mg / m ~ 3, H_2SO_4, HNO_3 1 ~ 2mg / m ~ 3, HF 0.5 ~ 1mg / m ~ 3). Exposure to workers by the physical examination without respiratory tract, cardiovascular disease, no history of chest surgery, also