| 青岛沿海大气气溶胶中无机组分在粗、细粒子上的分布 |
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| 引用本文： | 王珉,胡敏.青岛沿海大气气溶胶中无机组分在粗、细粒子上的分布[J].环境科学,2001,22(5):35-37. |
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| 作者姓名： | 王珉 胡敏 |
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| 作者单位： | 北京大学环境科学中心环境模拟与污染控制国家重点实验室,北京,100871 |
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| 基金项目： | 国家自然科学基金资助项目(29877002,29837190),同时得到韩国科学技术研究院的支持 |
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| 摘 要： | 在1997-09～1998-08分4次对大气气溶胶进行了监测.结果表明:青岛沿海地区的气溶胶质量浓度多集中于＜2.5μm的细粒子中,同时采暖季节细粒子比例浓度大大高于非采暖季节.SO42-、NH4+、NO3-、K+主要存在于粒径小于2.5μm的细粒子中.Na+、Cl-、Mg2+、Ca2+则主要存在于大于2.5μm的粗粒子中,冬季F-、Cl-、Br-均主要存在于细粒子中,而夏季则主要存在于粗粒子中,表明这3种离子在气溶胶粒径分布中可能受人为燃烧源和温度影响.
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| 关 键 词： | 粗粒子 细粒子 青岛沿海地区 季节变化 大气气溶胶 |
| 文章编号： | 0250-3301(2001)05-03-0035 |
| 收稿时间： | 2000/7/23 0:00:00 |
| 修稿时间： | 2000年7月23日 |
Major Inorganic Compositions in Fine and Coarse Particles of Ambient Aerosol at Qingdao |
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| Wang Min and Hu Min.Major Inorganic Compositions in Fine and Coarse Particles of Ambient Aerosol at Qingdao[J].Chinese Journal of Environmental Science,2001,22(5):35-37. |
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| Authors: | Wang Min and Hu Min |
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| Institution: | State Key Laboratory of Environment Simulation and Pollution Control, Center for Environmental Science, Peking University, Beijing 100871. |
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| Abstract: | Four times measurements of ambient aerosol were conducted from September, 1997 to August, 1998 at a coastal site of Qingdao. The results indicated that mass concentrations of aerosol mainly exist in fine particles(PM2.5, diameter less than 2.5 microns). The proportion of the fine particles in the heating period is much higher than that in the non-heating period. SO4(2-), NH4+, NO3-, K+ mainly exist in the fine particles while Na+, Cl-, Mg2+, Ca2+ mainly exist in the coarse particle, F-, Cl-, Br- mainly exist in the fine particles in the winter, but in the coarse particles in the summer, which reflects the influence of anthropogenic burning source and atmosphere temperature. |
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| Keywords: | fine particle coarse particle coastal area seasonal variation Qingdao ambient aerosol |
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