国有大中型企业通过逐年改扩建和技术改造,普遍建立了有害作业安全卫生操作规范、作业场所监测制度、职工健康监护制度等等,1999年较1990年报告职业病发病数下降了57％。 但同时,我国职业卫生状况又出现了新的动向:一是由于乡镇企业的无序发展,使原来主要集中在城市和工业区的职业危害迅速向农村地区转移。以急性职业中毒为 Large and medium-sized state-owned enterprises have generally established norms of safe and hygienic operation, workplace monitoring system, staff health guardianship system and so on through year-by-year expansion and technological renovation. In 1999, the number of occupational diseases reported dropped by 57% in 1990. However, at the same time, new trends have emerged in occupational health in our country. First, due to the disorderly development of township and village enterprises, the occupational hazards that were mainly concentrated in cities and industrial areas have rapidly shifted to rural areas. To acute occupational poisoning