Congener profiles of PCB and a proposed new set of indicator congeners
Congener profiles of PCB and a proposed new set of indicator congeners
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DOI：
10.1016/j.chemosphere.2006.05.075
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发表时间：
2007-04-01
期刊：
影响因子：
8.8
通讯作者：
Sakai, Shin-ichi
中科院分区：
文献类型：
--
作者：
Ishikawa, Yukari;Noma, Yukio;Sakai, Shin-ichi
本研究提出了一种新的计算多氯联苯总量和共面多氯联苯毒性当量(TEQ)的方法--多氯联苯对偶法。该方法分析了各种工艺多氯联苯、受工艺多氯联苯污染的样品和副产物多氯联苯。在多氯联苯DUAL方法中，使用了15个指标同类物的数据集进行计算，其中有IUPAC编号。#3、#8、#28、#52、#77、#101、#105、#118、#126、#138、#153、#180、#194、#206和#209。通过HRGC/HRMS分析，从18个工业多氯联苯、氯氰菊酯、芳氯酚、氯苯酚和氯氰菊酯以及室内空气、烟气、废气、生活垃圾、灰烬和密封剂等20个样品中筛选出15个同系物。为了得到总多氯联苯和Co-多氯联苯的TEQ，将15个同系物浓度的中间和乘以每个乘数。由此，我们得到了用于计算工艺印刷电路板和其他样品中的总电路板的平均系数。对于工业多氯联苯，因子为3.01；对于室内空气样品、烟道和废气、城市生活垃圾、灰烬和密封剂，因子分别为3.92、4.16、3.68、4.52和4.77。此外，还得到了用于计算卡内克勒和其他来源样品中Co-PCB的TEQ的因子。卡内克洛、室内空气样品和水泥厂排放气体的系数为10(-5)，而垃圾焚烧炉的烟气系数为10(-3)。这些数据对于在单独测量之前不与其他多氯联苯分离的情况下粗略估计联合多氯联苯的TEQ是有价值的。(C)2006爱思唯尔有限公司。保留所有权利。
In this study, a new method for calculating total PCB and toxic equivalents (TEQ) of coplanar PCB (Co-PCB) was proposed, called the 'PCB dual method'. This method analysed various kinds of technical PCB, samples contaminated by technical PCB and byproduct PCB. In the PCB dual method, a data set of 15 indicator congeners was utilized for the calculations, having IUPAC nos. #3, #8, #28, #52, #77, #101, #105, #118, #126, #138, #153, #180, #194, #206 and #209. The 15 congener set was chosen from the major congeners, determined by HRGC/HRMS analysis, in 18 technical PCB, Kanechlor, Aroclor, Clophen and Chlorofen, and 20 other samples, such as indoor air, flue gases, emission gases, municipal solid waste (MSW), ash and sealant. To obtain total PCB and TEQ of Co-PCB, the intermediate sum for the concentration of the 15 congeners was multiplied by each multiplication factor. As a result, we obtained the average factor used to calculate total PCB in technical PCB and other samples. For technical PCB, the factor was 3.01, while for indoor air samples, flue and emission gases, MSW, ash and sealants, the factors were 3.92, 4.16, 3.68, 4.52 and 4.77, respectively. Moreover, the factor used to calculate the TEQ of Co-PCB in Kanechlor and other source samples were also obtained.. The factors for Kanechlor, indoor air samples and emission gases from a cement plant were in the order of 10(-5), while the factor for flue gases in a MSW incinerator was in the order of 10(-3). These data were valuable for the rough estimation of the TEQ of Co-PCB without separation from other PCB before individual measurements. (c) 2006 Elsevier Ltd. All rights reserved.