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为探讨木尘对工人健康的影响和其致尘肺作用,为制定我国木尘卫生标准提供科学依据,我们对某木材加工厂进行了调查。一、对象和方法:选该木材厂单纯接触木尘工人为调查对象,对工人作业环境进行现场调查,用滤膜重量法测定粉尘浓度、分散度,采集沉降尘按焦磷酸重量法测定粉尘中游离SiO_2含量。受检对象559人,平均年龄30岁,平均工龄9年4个月,从中选接尘工龄5年以上工人96名拍
In order to explore the impact of wood dust on workers’ health and its role in causing pneumoconiosis, we provided a scientific basis for setting the hygiene standards for wood dust in China. We conducted a survey on a wood processing plant. First, the object and method: Select the wood factory simple contact with wood dust workers as the survey object, on-site investigation of the working environment of the workers, using the membrane weight method to determine the concentration of dust, degree of dispersion, the collection of sediment dust by pyrophosphoric acid gravimetric method for the determination of dust Free SiO2 content. 559 subjects were interviewed, the average age of 30 years, the average length of service of 9 years and 4 months, picking dust from the work of more than 5 years 96 workers beat