Organohalogenated compounds in pine needles from Beijing city, China
文献类型：期刊论文
| 作者 | Xu DD(徐殿斗) ; Chai ZF(柴之芳); Mao XY(毛雪瑛); Xu, DD; Deng, LL; Chai, ZF; Mao, XY
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2004 |
| 卷号 | 57期号:10页码:1343-1353 |
| 关键词 | extractable organoltalogens (EOX) organochlorinated pesticides PCBs pine needle instrumental neutron activation analysis (INAA) Beijing |
| 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 |
| 英文摘要 | 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. |
| 学科主题 | Environmental Sciences & Ecology |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000225119100012 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239302]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_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. |
入库方式： OAI收割
来源：高能物理研究所
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