Atmospheric PCDD/F and PCB levels implicated by pine (Cedrus deodara) needles at Dalian, China

被引：30
作者：
Chen, Jingwen
Zhao, Huimin
Gao, Lina
Henkelmann, Bernhard
Schramm, Karl-Werner
机构：
[1] Dalian Univ Technol, Dept Environm Sci & Technol, Dalian 116024, Peoples R China
[2] GSF, Natl Res Ctr Environm & Hlth, Inst Ecol Chem, D-85764 Neuherberg, Germany
来源：
ENVIRONMENTAL POLLUTION | 2006年 / 144卷 / 02期
基金：
中国国家自然科学基金;
关键词：
PCDD/F; PCB; Dalian; pine needle; concentration;
D O I：
10.1016/j.envpol.2006.01.039
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Dalian is a seaside city situated in the northeastern monsoon area of China. For the first time, levels of PCDD/F and PCB congeners in pine (Cedrus deodara) needles of Dalian urban areas were investigated. Two sampling campaigns with 17 sampling points were performed in 2002. The summation of tetra- to octachlorinated PCDD/Fs and summation of 209 PCB congeners in Dalian pine needles averaged 127 +/- 40 ng/kg (dry) and 4389 +/- 1575 ng/kg (dry), respectively. Average toxic equivalence (TEQ) for PCDD/Fs and PCBs are 2.1 and 0.4 ng/kg (dry), respectively. The pine needles can differentiate spatial variation of the pollutants. The PCDD/F and PCB levels in Dalian pine needles are low or comparable with other international regions that were not impacted by evident point sources. The data can serve as a base for long-term spatial and temporal studies of PCDD/Fs and PCBs in China. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：510 / 515
页数：6
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