【摘要】 为了制订粉尘作业的危害程度分级标准,本次共调查和整理了115个粉尘作业工种的日接尘时间肺总通气量。结果发现,115个接尘工种的工人在一个工作日内接尘时间平均肺总通气量5278升(男5472,女4159)。其中,70％左右的工种工作日接尘时间肺总通气量在中等水平以下,约30％的工种肺总通气量在6000升以上。根据调查结果,提出采用工人实际接尘时间肺总通气量(升/日·人)作为一项评定粉尘危害程度的分级指标。按小于4000升,小于6000升和大于6000升分为轻、中、重三个等级。更多还原

【Abstract】 An investigation was made of total pulmonary ventilation capacity of workers from 115 types of dust-exposed work, so as to get some scientific bases for the classification of hazard levels among dust exposed workers.Within a day shift, the average value of total pulmonary ventilation capacity for workers in 115 types of dust exposed work was 5278L(5472 for male and 4159 for female), the total pulmonary ventilation capacity of the workers being lower than medium level in about 70% of the dustexposed work types and that of the workers in about 30% of the dustexposed work types being higher than 6000L.The results proved that the total pulmonary ventilation capacity(L/day, man) in a day shift could serve as one of the grading indexes in estimating the risk degree which was suggested to be devided into three grades, i.e. less than 4000L which was class ified as slight, less than 6000L as medium, and more than 6000L as heavy.更多还原