近年来 ,国内外学者普遍认为作业场所呼吸性粉尘浓度远比总粉尘浓度更能客观反映工人接触粉尘的实际危害程度。许多国家相继采用了呼吸性粉尘浓度卫生标准[1] 。最近 ,我国颁布了 3个呼吸性粉尘卫生标准并已实施。为探讨总粉尘与呼吸性粉尘浓度比值的关系 ,我们对某陶瓷业历年 In recent years, domestic and foreign scholars generally believe that workplace concentrations of respirable dust far more than the total dust concentration can more objectively reflect the actual extent of exposure to dust workers. Many countries have adopted the hygiene standards for respiratory dust concentration [1]. Recently, China issued three respiratory dust hygiene standards and has been implemented. In order to explore the relationship between total dust and respiratory dust concentration ratio, we have a ceramic industry over the years