目前,广泛认为机动车辆排出的废气是环境中铅和一氧化碳(CO)污染的重要来源。长期连续在交通繁忙的公路边作业的工人,接触较高浓度的机动车废气,能否造成职业危害,值得研究。作者对13名长期在公路边工作的工人进行了血铅和碳氧血红蛋白测定。这13名工人在公路边上安装和维修电缆,常要蹲在一个约3尺深的坑内作业,未带防护面具。于工作日下午对这些工人进行症状询 At present, it is widely accepted that the exhaust emitted by motor vehicles is an important source of lead and carbon monoxide (CO) pollution in the environment. Long-term continuous work in the busy road workers, exposure to higher concentrations of motor vehicle exhaust, can cause occupational hazards, it is worth studying. The authors conducted blood lead and carboxyhemoglobin measurements for 13 workers who worked long hours on the roadside. The 13 workers installed and repaired cables along the road and often crouched in a pit about 3 feet deep without protective masks. In the afternoon on working days for these workers for symptoms inquiry