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Organohalogenated compounds in pine needles from Beijing city, China
Xu DD(徐殿斗); Chai ZF(柴之芳); Mao XY(毛雪瑛); Xu, DD; Deng, LL; Chai, ZF; Mao, XY
2004
发表期刊CHEMOSPHERE
卷号57期号:10页码:1343-1353
通讯作者Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Analyt Techn, Beijing 100039, Peoples R China ; Beijing Polytech Univ, Environm & Energy Dept, Beijing 100022, Peoples R China
摘要Pine needles collected from 22 sites of six areas in Beijing city, China, were analyzed by instrumental neutron activation analysis (INAA) combined with organic extraction for extractable organohalogens (EOX) and extractable persistent organohalogens (EPOX). The concentrations of EOX (EOX = EOCl + EOBr + EOI) were in the order of EOCl much greater than EOBr much greater than EOI About 1.6-34% of EOCl remained as extractable persistent organochlorine (EPOCl) after treatment with concentrated sulfuric acid, which suggested that major fractions of EOCl in pine needles were an acid-liable or acid-soluble fraction. The fact that pine needle contained higher EOCI contents in chemical industrial and traffic hub areas indicated that chemical industries and exhaust emission from vehicle were the main sources of organochlorines in the Beijing's air. The relative proportions of the known organochlorines (such as HCHs, DDTs, chlordanes, HCB and PCBs) to total EOCl and EPOCl were 0.32-0.76% and 2.5-11.4%, respectively, which implied that a major portion of the EOCl and EPOCl measured in pine needles was unknown. The organochlorinated pesticides (OCPs) and PCBs concentrations in six areas were as follows: SigmaHCH (SigmaHCH = alpha- + beta- + beta- + delta-HCH), 11.7-20.8ng/g; SigmaDDT (p, p'-DDT + p,p'-DDE + p,p'-DDD), 12.5-113.3 ng/g; hexachlorobenzene (HCB), 1.1-5.3 ng/g; Sigmachlordane (cis-chlordane + trans-chlordane + heptachlor), 1.7-9.5 ng/g, SigmaPCB, 41.8-270.5 ng/g, on dry weight basis. The samples from chemical industrial area and residential area nearby chemical industries contained the highest concentrations of SigmaDDT, HCB, Sigmachlordane and SigmaPCB, while the contamination levels of most OCPs and PCBs in iron-steel industrial area were the lowest. The ratios of alpha/gamma-HCH (ranged from 0.9-1.5) and p,p'-DDT/DDTs (ranged from 72.1% to 91.0%) revealed the presence of the recent use of lindane and DDTs or impure dicofol in Beijing. (C) 2004 Elsevier Ltd. All rights reserved.
文章类型Article
关键词extractable organoltalogens (EOX) organochlorinated pesticides PCBs pine needle instrumental neutron activation analysis (INAA) Beijing
学科领域Environmental Sciences & Ecology
研究领域[WOS]Environmental Sciences & Ecology
DOI10.1016/j.chemosphere.2004.09.016
URL查看原文
语种英语
WOS类目Environmental Sciences
WOS记录号WOS:000225119100012
引用统计
被引频次:38[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/311005/239302
专题院士
多学科研究中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Xu DD,Chai ZF,Mao XY,et al. Organohalogenated compounds in pine needles from Beijing city, China[J]. CHEMOSPHERE,2004,57(10):1343-1353.
APA 徐殿斗.,柴之芳.,毛雪瑛.,Xu, DD.,Deng, LL.,...&Mao, XY.(2004).Organohalogenated compounds in pine needles from Beijing city, China.CHEMOSPHERE,57(10),1343-1353.
MLA 徐殿斗,et al."Organohalogenated compounds in pine needles from Beijing city, China".CHEMOSPHERE 57.10(2004):1343-1353.
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