Ikeda M, Ohtsuki T
Tohoku J Exp Med. 1985 Jun;146(2):225-35. doi: 10.1620/tjem.146.225.
The relationship was investigated between the environmental concentrations in workplaces and the concentrations in the breath zones of the workers therein. The former was measured in 47 organic solvent workplaces of various types taking both the grid-sampling strategy (Measurement A) and a spot-air sampling to detect possible maximum exposure (Measurement B), while the latter was determined by the application of personal samplers to 328 workers. Although a low yet significant correlation was observed between the results of Measurement A (i.e., the combination of the geometric mean and the geometric standard deviation of the environmental concentration) and the exposure concentration, excess exposure (i.e., over occupational exposure limit exposure) would occur in some workplaces when the occupational exposure limit itself be used as the limit value for the setting of criterion for environmental concentration. The analyses of the experiences suggest no excess exposure would be expected if half the occupational exposure limit be employed as the limit value.
对工作场所的环境浓度与其中工人呼吸带的浓度之间的关系进行了调查。前者在47个不同类型的有机溶剂工作场所进行测量，采用网格采样策略（测量A）和定点空气采样以检测可能的最大暴露量（测量B），而后者则通过对328名工人使用个人采样器来确定。尽管在测量A的结果（即环境浓度的几何平均值和几何标准偏差的组合）与暴露浓度之间观察到低但显著的相关性，但当将职业接触限值本身用作环境浓度标准设定的限值时，一些工作场所会出现过度暴露（即超过职业接触限值的暴露）。经验分析表明，如果采用职业接触限值的一半作为限值，则预计不会出现过度暴露。
