近年来，随着我国经济建设的迅猛发展，被称为“看不见的杀手”的职业病正呈蔓延之势，严重威胁着广大职工的生命安全和身心健康，必须引起有关方面的充分重视。据有关部I’」统计，从1949年到1992年底，全国县以上全民和大集体所有制企业尘肺病患者累计50万人，病死率达20．2 In recent years, with the rapid development of economic construction in our country, occupational diseases known as “invisible killers” are spreading and threaten the lives, safety and physical and mental health of workers in general and must be given full attention by relevant parties. According to statistics from relevant departments, from 1949 to the end of 1992, there were 500,000 pneumoconiosis patients in the whole people and large collective-owned enterprises above the county level with a mortality rate of 20.2