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Levels of extractable organohalogens in pine needles in China
其他题名1
Xu DD(徐殿斗); Zhong WK(仲维科); Deng LL(邓林林); Chai ZF(柴之芳); Mao XY(毛雪瑛); Xu, DD; Zhong, WK; Deng, LL; Chai, ZF; Mao, XY
2003
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号37期号:1页码:1-6
通讯作者Chai, ZF (reprint author), Acad Sinica, Inst High Energy Phys, Lab Nucl Analyt Tech, POB 918, Beijing 100039, Peoples R China.
文章类型Article
摘要Pine needles can accumulate organohalogens from the ambient air, which are, hence, able to serve as a biomonitor to evaluate the levels of organochlorinated contaminants in the atmospheric environment. Extractable organochlorine (EOCI), the most abundant of the extractable organohalogens (EOX) in environmental samples, has received much attention as a parameter for evaluation of total contamination levels of organochlorinated compounds (M). However, few data concerning EOCI in vegetation are available. In this study, we selected pine needles from 17 different areas in China as a sampling matrix to reflect the regional distribution of OCs. EOX (EOX = EOCI + EOBr + EOI) were measured by instrument neutron activation analysis for their concentrations and distribution in pine needles. The concentrations of EOX were on the order of EOCI much greater than EOBr > EOI. About 5-38% of EOCI remained as sulfuric acid-resistant organochlrine (EPOCI). The relatively high concentrations of EPOCI in pine needles from remote areas suggested that EPOCI mainly originated from long-range atmospheric transport and contaminated soil. The relative proportions of the known organochlorines (such as HCHs, DDTs, aldrin, heptachlor, and chlordanes) to total EOCI and EPOCI were 0.3-5.2% and 1.4-19.8%, respectively, which implied that a major portion of the EPOCI measured in pine needles was unknown. The EPOX accumulation rates were preliminarily estimated under the natural condition, which suggested that the "young" needle accumulated EPOX more quickly than the "old" and more than 94% of EPOX was accumulated at the first year of pine needles.
学科领域Engineering; Environmental Sciences & Ecology
DOI10.1021/es025799o
收录类别SCI
WOS类目Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000180246200018
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被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225403
专题院士
多学科研究中心
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GB/T 7714
Xu DD,Zhong WK,Deng LL,et al. Levels of extractable organohalogens in pine needles in China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2003,37(1):1-6.
APA 徐殿斗.,仲维科.,邓林林.,柴之芳.,毛雪瑛.,...&Mao, XY.(2003).Levels of extractable organohalogens in pine needles in China.ENVIRONMENTAL SCIENCE & TECHNOLOGY,37(1),1-6.
MLA 徐殿斗,et al."Levels of extractable organohalogens in pine needles in China".ENVIRONMENTAL SCIENCE & TECHNOLOGY 37.1(2003):1-6.
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