摘要
应用职业流行病学方法,讨论汞接触与汞危害关系,对现行汞标准进行评价。调查接汞者1220(女工776)名,对照组944(女工592)名。汞接触水平均0.1mg/m^3内,所见症状与接汞水平、尿汞、工龄与年龄有关;女工的神经系统症状发生较男工为甚。空气汞、尿汞与中毒症状间存在剂量反应关系;空气汞与尿汞值之比约1:1.67,尿汞水平在0.05mg/L以下时,接汞水平相当于0.03mg/m^3,在此汞接触水平下,连续接触10年,汞中毒发生率为1.9％。提示以保护97％接汞人群不发生中毒为水准,建议汞的卫生标准由0.01mg/m^3修订为0.03mg/m^3。
In this study, the relationship betweenelement mercury (Hg) and its hazards wasdiscussed and current hygienic standard ofHg was revaluated using methods of occupa-tional epidemiology. The subjects investigatedwere 1220 mercury exposed workers (includ-ing 776 females) and 944 controls (including592 females). The investigation showed thatthe sequel symptoms were correlated withmercury exposure level, urine mercury (Hg-U), length of working, and age, when at airconcentration of below 0.1 mg/m^3, and thatthe neurasthenia symptoms in female work-ers were more severe than in male workers.There was dose-effect relationship betweenairborne mercury (Hg-A), Hg-U and intoxic-ant symptoms. The ratio of Hg-A to Hg-U is1:1.67,that is,the Hg-U level below 0.05mg/Lwas commensurated with the air exposurelevel of 0.03 mg/m^3. Given mercury exposu-re below this level continuous for 10 years,the incidence of mercurialism was 1.9%. Thisprovides the principle of preventing 97%mer-cury exposed population from mercurialism.The author suggests to revise the value of cur-rent hygienic standard for Hg in our countryfrom 0.01mg/m^3 to 0.03mg/m^3.
出处
《中国工业医学杂志》
CAS
1992年第3期134-136,共3页
Chinese Journal of Industrial Medicine
关键词
金属汞
汞危害
流行病学
element mercury
hazards of element mercury
dose-effect
relationship hygienic standard
