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本文采用一次呼吸CO法,测定315名石棉工人和314名作对照的不接触粉尘的健康工人的弥散量,并测定了通气功能.与对照组相比,男、女石棉工人弥散量(DLco),肺活量(VC),用力肺活量(FVC)和一秒时间肺活量(FEV_1)明显降低,一秒率(FEV_1％)和呼气中期流速(MMEF)无明显差异.石棉工人最早出现的肺功能异常是DLco 降低,接尘5年时DLco与接尘工龄存在负相关关系。说明接触石
In this paper, we measured the dispersion of 315 asbestos workers and 314 healthy workers exposed to dust using the one-breath CO method, and measured the ventilation function.Compared with the control group, the male and female asbestos dispersion (DLco) The vital capacity (VC), forced vital capacity (FVC) and one second time vital capacity (FEV_1) decreased significantly with no difference between the one second rate (FEV_1%) and the midsophageal flow rate (MMEF) .The earliest pulmonary dysfunction in asbestos workers was DLco Reduce, take the dust 5 years DLco and the age of dust-cleaning there is a negative correlation. Description of contact stone