Video display units: An emission source of the contact allergenic flame retardant triphenyl phosphate in the indoor environment
Video display units: An emission source of the contact allergenic flame retardant triphenyl phosphate in the indoor environment
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DOI：
10.1021/es990768n
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发表时间：
2000-09-15
影响因子：
11.4
通讯作者：
Ostman, C
中科院分区：
文献类型：
--
作者：
Carlsson, H;Nilsson, U;Ostman, C
磷酸三苯酯是一种添加型阻燃剂，有文件证明对人类有接触过敏作用，在计算机化的室内办公环境中被发现。辐射源是电脑视像显示器。对18个VDU进行了检查，发现其外壳含有高达10%（w/w）的磷酸三苯酯。在小型办公室中使用这种配备全新VDU的PC设备时，运行1天后，空气中磷酸三苯酯的浓度升高至接近100 ng/m3。这些测量是在一个坐在电脑前的假想操作员的呼吸区进行的。连续运行1周后，磷酸三苯酯浓度降低一半。此外，在183天后，可观察到浓度降至约10纳克/立方米，相当于正常营业时间运行2年以上。
Triphenyl phosphate, an additive flame retardant with documented contact allergenic effects on humans, was identified in a computerized indoor office environment. The source of emission was found to be the computer video display units (VDUs). Eighteen VDUs were examined, and the outer covers were shown to contain triphenyl phosphate in levels up to 10% (w/w). When using this type of PC equipment with a brand-new VDU in a small office room, the air concentration of triphenyl phosphate raised to near 100 ng/ m(3) after 1 day of operation. The measurements were performed in the breathing zone of an imaginary operator sitting in front of the computer. After 1 week of continuous operation, the concentration of triphenyl phosphate was reduced by half. Furthermore, a decrease to approximately 10 ng/m(3) could be observed after 183 days, which corresponds to more than 2 yr of ordinary business hour operation.