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| 广州天河区大气中二噁英年度监测及气固分配规律 | |
| 引用本文： | 余莉萍,帅开敏,彭平安,盛国英,傅家谟.广州天河区大气中二噁英年度监测及气固分配规律[J].中国环境监测,2010,26(4):23-27. |
| 作者姓名： | 余莉萍 帅开敏 彭平安 盛国英 傅家谟 |
| 作者单位： | 1. 中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640;上海市杨浦区环境监测站,上海200093 2. 上海市杨浦区环境监测站,上海,200093 3. 中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州,510640 |
| 基金项目： | 国家自然科学重大项目(40590392); 中科院知识创新工程项目(KZCX2Y-W403) |
| 摘 要： | 对广州天河区大气中二噁英进行年度监测和气固分配模式的研究。结果表明,天河区大气中存在较高浓度的二噁英;低氯代二噁英对毒性当量贡献较大,其主要分布在气相,2,3,4,7,8-PeCDF对毒性当量贡献最大,其贡献超过35%;高氯代二噁英(主要是OCDF、OCDD、1,2,3,4,6,7,8-HpCDF和1,2,3,4,6,7,8-HpCDD)对浓度贡献较大,其主要分布在颗粒相。 |
| 关 键 词： | 二噁英 大气 气固分配 |
| 收稿时间： | 2009/9/14 0:00:00 |
| 修稿时间： | 2010/1/10 0:00:00 |
Annual Monitoring and Gas-Particle Partitioning of PCDD/Fs in the Atmosphere of Tianhe District in Guangzhou |
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| YU Li-ping.Annual Monitoring and Gas-Particle Partitioning of PCDD/Fs in the Atmosphere of Tianhe District in Guangzhou[J].Environmental Monitoring in China,2010,26(4):23-27. | |
| Authors: | YU Li-ping |
| Institution: | State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;Yangpu Environmental Monitoring Station in Shanghai, Shanghai 200093, China.;Yangpu Environmental Monitoring Station in Shanghai, Shanghai 200093, China.;State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China |
| Abstract: | The occurrence of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the atmosphere of Tianhe District in Guangzhou was investigated annually. Meanwhile, gas-particle partitioning of PCDD/Fs was also examined in this study. The results showed that PCDD/Fs were ubiquitous in the atmosphere of Tianhe District with high concentrations. Low-chlorinated PCDD/Fs were mainly found in gaseous phase with a high contribution to the overall toxic equivalency quantity (TEQ). Of all congeners we analyzed, 2,3,4,7,8-PeCDF was the highest TEQ contributor, which accounting for more than 35% for the total. For high-chlorinated PCDD/Fs, the OCDF, OCDD, 1,2,3,4,6,7,8-HpCDD, and 1,2,3,4,6,7,8-HpCDF were the main congeners, which were found in the particulate phase frequently. |
| Keywords: | PCDD/Fs atmosphere Gas-particle Partitioning |
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