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化学工人接触有毒物质的监测是化工劳动卫生工作的重要内容之一。据1977年美国对全国职业安全与卫生工作者的调查表明,大约8万多名专业人员中,有一半以上的时间从事于这一工作。为了使他们有更多的时间与智力用于研究和完成工程控制与管理措施,美国北卡罗来纳大学研究者提出了一种应用计算机描图来计算时间加权平均浓度的新方法。计算机描图的方法采用哈佛大学设计学院编写的一套计算机程序,称SYMAP系统。它可以通过定位于车间平面图的x-y坐标上的采样数据来描述待监测的地区。作
Chemical workers exposed to toxic substances monitoring is one of the important aspects of chemical and occupational health work. According to a survey conducted by the United States on national occupational safety and health workers in 1977, more than half of the more than 80,000 professionals are engaged in this work. In order to give them more time and intelligence to research and complete engineering control and management measures, researchers at the University of North Carolina in the United States put forward a new method of calculating the time-weighted average concentration by computerized tracing. Computer drawing method using a set of computer programs written by Harvard University Design Institute, said the SYMAP system. It describes the area to be monitored by sampling data located at the x-y coordinates of the shop floor plan. Make