Psychological performance of workers with blood-lead concentration below the current threshold limit value
Psychological performance of workers with blood-lead concentration below the current threshold limit value
复制标题
DOI：
10.1007/bf00398816
复制
发表时间：
1984
影响因子：
3
通讯作者：
P. Campara;F. D'Andrea;R. Micciolo;C. Savonitto;M. Tansella;C. Zimmermann-Tansella
中科院分区：
文献类型：
--
作者：
P. Campara;F. D'Andrea;R. Micciolo;C. Savonitto;M. Tansella;C. Zimmermann-Tansella
本文研究了铅接触对40名铅水平不超过60 μg/100 ml的铅作业工人心理测验成绩和主观幸福感的影响，并与20名性别、年龄和文化程度相匹配的对照组进行了比较。接触工人被分为两组，每组20人，近期PbB水平在45-60 μg/100 ml或低于35 μg/100 ml。与其他两组相比，PbB水平较高的工人组表现出明显较差的表现，并报告了更多的身体症状。这些差异与社会人口统计学和人格特征无关。主成分分析表明，表现较差主要是由于一般功能受损，只是在某种程度上由于特定功能，如语言推理和抽象的恶化。较高的铅浓度与较差的性能和更多的身体投诉。这些结果表明，在接触铅的工人中，表现受损的阈值低于血铅浓度60 μg/100 ml，这是当前的阈值限值（TLV）。
The effects of lead exposure on psychological test performance and subjective feelings of well-being were investigated in 40 exposed workers whose PbB levels had never exceeded 60 μg/100 ml and in 20 controls matched for sex, age and educational level. The exposed workers were divided into two groups of 20, with recent PbB levels in the range 45–60 μg/100 ml or below 35 μg/100 ml. The group of workers with the higher PbB levels showed significantly poorer performance and reported more physical symptoms than the other two groups. These differences were unrelated to socio-demographic and personality characteristics. A principal component analysis suggested that the poorer performance was mainly due to an impairment of general functioning and only to some extent to a deterioration in specific functions, such as verbal reasoning and abstraction. Higher lead concentrations were correlated with poorer performance and a higher number of physical complaints. These results indicate that in exposed workers the threshold for impaired performance lies below the blood-lead concentration of 60 μg/100 ml, which is the current threshold limit value (TLV).