Kitazume M, Hayashi M, Yazawa A, Sato Y, Kawamura T
Yokohama City Institute of Health.
Nihon Koshu Eisei Zasshi. 1990 Mar;37(3):165-76.
Tetrachloroethylene (TCE) level in the working environment was measured at five dry cleaning workplaces. Time weighted average (TWA) concentration of TCE collected using an activated charcoal badge were 2.3-19.1 ppm in summer and 1.3-56.9 ppm in winter. TCE level in the work place measured during the work process showed that when the dry cleaning machine was opened to remove clothes, TCE ranged from 63.2 to 85.6 ppm and while the machine was operating ranged from 50.8 to 143 ppm. TCE levels at the middle of the cleaning cycle ranged horizontally from 0.5 to 11.0 ppm (mean 3.0 ppm, 12 sampling points) in summer and from 7.7 to 85.3 ppm (mean 28.0 ppm. 12 sampling points) in winter. The values varied according to the location of the sampling point. In the living area adjacent to the workplace, TCE was found to be at the same level as the workplace. Therefore in order to prevent other family members from being affected it is recommended that the workplace be separated from the residence.
在五个干洗工作场所测量了工作环境中的四氯乙烯（TCE）水平。使用活性炭徽章收集的TCE时间加权平均（TWA）浓度在夏季为2.3 - 19.1 ppm，冬季为1.3 - 56.9 ppm。在工作过程中测量的工作场所TCE水平表明，当打开干洗机取衣服时，TCE范围为63.2至85.6 ppm，而机器运行时范围为50.8至143 ppm。清洁周期中间的TCE水平在夏季水平范围为0.5至11.0 ppm（平均3.0 ppm，12个采样点），冬季为7.7至85.3 ppm（平均28.0 ppm，12个采样点）。这些值根据采样点的位置而变化。在工作场所相邻的生活区，发现TCE水平与工作场所相同。因此，为防止其他家庭成员受到影响，建议将工作场所与住所分开。
