Department of Environmental Engineering, Chungnam National University, Daejeon 305-764, South Korea.
Department of Environmental Engineering, Chonbuk National University, Jeonju 561-756, South Korea.
Sci Total Environ. 2015 Feb 15;506-507:76-85. doi: 10.1016/j.scitotenv.2014.10.116. Epub 2014 Nov 15.
This study focused on a quantitative substance flow analysis (SFA) of polybrominated diphenyl ethers (PBDEs) in plastics from obsolete TVs and computer monitors that often contain large amounts of the flame retardants. According to the results of the static SFA study, 1.87 tons and 0.28 tons of PBDEs from newly manufactured TVs and computer monitors were introduced into households in 2011 in Korea, respectively. There were approximately 924 tons and 90.3 tons of PBDEs present in TVs and computer monitors in households during product use, respectively. The results of the dynamic SFA study indicated that in 2017 the amount of PBDEs from TVs and computer monitors in the recycling stage is expected to be 2.63 tons and 0.1 tons, respectively. Large fractions of PBDEs from used TVs are present in recycled plastics, while PBDE-containing computer monitors are exported to Southeast Asian countries. This research indicates that PBDEs were emitted the most from recycled plastic pellet processes upon recycling. Further study may be warranted to focus the flow of PBDEs in recycled plastic products in order to determine the final destination and disposal of these chemicals in the environment.
本研究重点对废旧电视机和电脑显示器塑料中多溴二苯醚（PBDEs）进行了定量物质流分析（SFA）。这些废旧设备通常含有大量的阻燃剂。根据静态 SFA 研究的结果，2011 年韩国新制造的电视机和电脑显示器分别向家庭引入了 1.87 吨和 0.28 吨的 PBDEs。在产品使用期间，家庭中电视机和电脑显示器内分别存在约 924 吨和 90.3 吨的 PBDEs。动态 SFA 研究的结果表明，2017 年，回收阶段电视机和电脑显示器中 PBDEs 的数量预计分别为 2.63 吨和 0.1 吨。用过的电视机中有大量的 PBDEs 存在于回收塑料中，而含有 PBDE 的电脑显示器则出口到东南亚国家。这项研究表明，在回收过程中，回收塑料颗粒过程中释放的 PBDEs 最多。为了确定这些化学物质在环境中的最终去向和处置方式，可能需要进一步研究以关注回收塑料产品中 PBDEs 的流动情况。
