电子回收设施空气中不同粒径尘埃组分中溴化阻燃剂的分布
Distribution of brominated flame retardants in different dust fractions in air from an electronics recycling facility.
作者信息
Julander Anneli, Westberg Håkan, Engwall Magnus, van Bavel Bert
机构信息
Man-Technology-Environment Research Centre, Department of Natural Sciences, Orebro University, S-701 82 Orebro, Sweden.
出版信息
Sci Total Environ. 2005 Nov 1;350(1-3):151-60. doi: 10.1016/j.scitotenv.2005.01.015.
Twelve air samples were collected from an electronic recycling facility in Sweden representing three different dust fractions; respirable, total and inhalable dust. Four samples were collected from each fraction. The highest concentration of polybrominated diphenyl ether (PBDE) #209 (ten bromine atoms) was found in the samples from the inhalable dust fraction (ID), which was 10 times higher than for the "total dust" fraction (TD). The concentration ranges were 157.6-208.6; 13.9-16.7; and 2.8-3.3 ng/m3 for inhalable, total and respirable fractions, respectively. The second most abundant PBDE congener was PBDE #183 (seven bromine atoms), followed by the second most abundant substance 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE) in all samples. In addition, decabromodiphenyl ethane (DeBDethane) was tentatively identified in five of the samples. Because of the large differences in air concentrations between the three fractions in ID, TD and RD, it is suggested that the inhalable instead of "total dust" fraction should be used to assess air concentrations, in particular for the larger and higher brominated flame retardants (BFRs).
从瑞典的一个电子回收设施采集了12个空气样本，代表三种不同的粉尘类别：可吸入粉尘、总粉尘和吸入性粉尘。每个类别采集了4个样本。在吸入性粉尘类别（ID）的样本中发现多溴二苯醚（PBDE）#209（十个溴原子）的浓度最高，比“总粉尘”类别（TD）高出10倍。可吸入、总粉尘和可吸入性粉尘类别的浓度范围分别为157.6 - 208.6；13.9 - 16.7；以及2.8 - 3.3 ng/m³。在所有样本中，第二丰富的多溴二苯醚同系物是PBDE #183（七个溴原子），其次是第二丰富的物质1,2 - 双（2,4,6 - 三溴苯氧基）乙烷（BTBPE）。此外，在五个样本中初步鉴定出十溴二苯乙烷（DeBDethane）。由于ID、TD和RD中三个类别之间的空气浓度差异很大，建议使用吸入性粉尘类别而非“总粉尘”类别来评估空气浓度，特别是对于含溴量更高的大型溴化阻燃剂（BFRs）。
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