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| 基于放射性碳及稳定碳同位素比的大气细颗粒物中有机污染物来源的分析 | |
| 引用本文： | 刘卫,李燕,许忠扬,吴伟伟,林俊,王广华.基于放射性碳及稳定碳同位素比的大气细颗粒物中有机污染物来源的分析[J].中国粉体技术,2009,15(2). |
| 作者姓名： | 刘卫 李燕 许忠扬 吴伟伟 林俊 王广华 |
| 作者单位： | 1. 中国科学院上海应用物理研究所,上海,201800 2. 中国科学院上海应用物理研究所,上海,201800;南华大学核科学技术学院,湖南,衡阳,421001 3. 中国科学院上海应用物理研究所,上海 201800;重庆邮电大学光电工程学院,重庆 400065 |
| 基金项目： | 国家自然科学基金，人事部留学回国人员科研基金，中国科学院知识创新工程重要方向性项目，上海应用物理研究所领域前沿项目，中国科学院重点实验室开放基金 |
| 摘 要： | 建立了一套基于放射性碳及稳定碳同位素比定量估算大气细颗粒物PM2.5(动力学直径da≤2.5μm)中有机污染物来源的方法,并用该方法初步估算上海市宝山地区大气PM2.5中有机污染物的来源。结果表明,宝山区冬季大气颗粒物中有机污染物的来源主要来自石化产物,占到了总量的64.7%,而非石化产物只有35.3%;其中石化燃料产物分担率中主要是机动车尾气的贡献,非石化燃料产物分担率中可能主要是二次扬尘。 |
| 关 键 词： | 大气颗粒物 有机污染物 碳同位素 |
Partitioning Sources of Organic Pollutants in Fine Airborne Particles Based on Specific Activities of 14C and Stable Carbon Isotopic Compositions |
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| Liu Wei,Li Yan,Xu Zhongyang,Wu Weiwei,Lin Jun,Wang Guanghua.Partitioning Sources of Organic Pollutants in Fine Airborne Particles Based on Specific Activities of 14C and Stable Carbon Isotopic Compositions[J].China Powder Science and Technology,2009,15(2). | |
| Authors: | Liu Wei Li Yan Xu Zhongyang Wu Weiwei Lin Jun Wang Guanghua |
| Abstract: | The specific activities of 14C and stable carbon isotopic compositions were used to partition the sources. The fractional distribution of the sources of organic pollutants in fine airborne particles PM2.5,collected from Baoshan District,Shanghai City,was also primarily determined. The organic pollutants in the PM2.5 originated mainly from the fossil products, whose accounted for 64.7% of the total organic pollutants while the non-fossil products accounted for 35.3%. The vehicle exhaust was main origination of the fossil products while the second fugitive dust for the non-fossil products. |
| Keywords: | airborne particles organic pollutant carbon isotopic composition |
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