Characterization of gas/particle concentrations and partitioning of polychlorinated biphenyls (PCBs) measured in an urban site of Turkey
Characterization of gas/particle concentrations and partitioning of polychlorinated biphenyls (PCBs) measured in an urban site of Turkey
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DOI：
10.1016/j.envpol.2006.10.018
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发表时间：
2007-07-01
影响因子：
8.9
通讯作者：
Tasdemir, Yucel
中科院分区：
文献类型：
--
作者：
Cindoruk, S. Siddik;Tasdemir, Yucel
2004年8月至2005年5月，在土耳其布尔萨市的一个城市站点（BUTAL-美利奴斯）测量了气相和颗粒相的多氯联苯（PCBs）的空气浓度。多氯联苯总浓度（颗粒物+气体）的平均值约为491.8 +/- 189.4皮克/立方米。采样点多氯联苯的主要贡献者是当地来源和远距离大气迁移，后向轨迹分析支持了这一点。较低分子量的多氯联苯同系物通常在样品中占主导地位。所测得的PCB的颗粒相占总PCB浓度的15%。采用不同的方法研究了气体/颗粒分布，如log K-p-log P-L（o），log K-p -log K-OA和Junge-Pankow模型。log K-p、log P-L（o）和log K-OA之间的回归分析显示p < 0.05时具有显著相关性。建立了多氯联苯同系物与气象参数之间的相关性，以探讨可能的关系。(C)2006爱思唯尔有限公司保留所有权利。
Air concentrations of polychlorinated biphenyls (PCBs) in both gas and particle phases were measured in an urban site (BUTAL-Merinos) of the city of Bursa, Turkey between August 2004 and May 2005. The mean of total (particle + gas) PCB concentrations was about 491.8 +/- 189.4 pg/m(3). The main contributors for PCBs in the sampling site were the local sources and long-range atmospheric transport supported by back trajectory analysis. Lower molecular weight PCB congeners generally dominated in the samples. The particle phase of the measured PCBs accounted for 15% of the total PCB concentrations. Gas/particle distribution was investigated using different approaches such as log K-p-log P-L(o), log K-p -log K-OA and the Junge-Pankow model. Regression analysis among log K-p, log P-L(o) and log K-OA exhibited significant correlation at p < 0.05. Correlation between PCB homologs and meteorological parameters was formed to investigate the possible relationships. (C) 2006 Elsevier Ltd. All rights reserved.