The presence of polychlorinated biphenyls in yellow pigment products in China with emphasis on 3,3′-dichlorobiphenyl (PCB 11)
The presence of polychlorinated biphenyls in yellow pigment products in China with emphasis on 3,3′-dichlorobiphenyl (PCB 11)
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DOI：
10.1016/j.chemosphere.2013.09.075
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发表时间：
2014-03-01
期刊：
影响因子：
8.8
通讯作者：
Jiang, Guibin
中科院分区：
文献类型：
--
作者：
Shang, Hongtao;Li, Yingming;Jiang, Guibin
作为一种非氯代多氯联苯同系物，3,3′-二氯联苯（PCB 11）由于其在环境中的普遍存在以及其特定来源可能与黄色颜料的生产有关，近年来引起了广泛关注。为了调查黄色颜料产品中的PCB 11和其他多氯联苯，从中国三个不同的生产厂收集了24份黄色颜料样品。Sigma(20)PCB和PCB 11分别在50.7-9.19 x 10(5) ng g（-1）和41.7-9.18 x 10(5) ng g（-1）范围内，远高于以往研究报道。相应的TEQ值为0.16 ~ 4.21 × 10(3) ng WHO2005-TEQ kg（-1）。PCB 11对Sigma(20)PCB的贡献高达85.5%（中值），其次是PCB 28、PCB 77和PCB 52，贡献分别为10.5%、6.70%和5.40%。同一种植物不同类型的黄素和不同植物相同类型的黄素中PCB 11的浓度存在显著差异。以3,3′-二氯联苯胺为原料生产的二乙基黄色颜料中PCB 11浓度最高。结果表明，黄色颜料不仅是广泛存在的PCB 11污染的重要来源，也是其他多氯联苯，特别是低氯同系物污染的重要来源。(C) 2013 Elsevier Ltd.版权所有。
A non-Aroclor PCB congener, 3,3'-dichlorobiphenyl (PCB 11) has recently attracted wide concerns because of its environmental ubiquity and specific sources potentially associated with yellow pigment production. In order to investigate PCB 11 and other PCBs in the yellow pigment products, 24 yellow pigment samples were collected from three different manufacturing plants in China. Sigma(20)PCBs and PCB 11 were in the range of 50.7-9.19 x 10(5) ng g(-1) and 41.7-9.18 x 10(5) ng g(-1), respectively, which was much higher than those reported in previous study. The corresponding TEQ values ranged between 0.16 and 4.21 x 10(3) ng WHO2005-TEQ kg(-1). The contribution of PCB 11 to Sigma(20)PCBs reached up to 85.5% (median value) followed by PCB 28, PCB 77, and PCB 52 with contributions of 10.5%, 6.70%, and 5.40%, respectively. Significant differences were observed for PCB 11 concentrations among the different types of yellow pigment from the same plant and among the same sample types from different plants. The PCB 11 concentrations in diarylide yellow pigments produced from 3,3'-dichlorbenzidine were the highest in all the samples. It demonstrates that yellow pigment is a significant source not only for the widespread pollution of PCB 11 but also for other PCBs, especially for the lower chlorinated congeners. (C) 2013 Elsevier Ltd. All rights reserved.