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| Seasonal features of aerosol particles recorded in snow from Mt. Qomolangma （Everest） and their environmental implications | |
| 作者姓名： | CONG Zhiyuan KANG Shichang QIN Dahe |
| 作者单位： | CONG Zhiyuan(Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China; Graduate University of the Chinese Academy of Sciences, Beijing 100049, China);KANG Shichang(Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;State Key Laboratory of Cryospheric Science, Chinese Academy of Sciences, Lanzhou 730000, China);QIN Dahe(Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China) |
| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划)，the State Key Labo-ratory of Cryospheric Sciences |
| 摘 要： | |
| 关 键 词： | 珠穆朗玛峰地区 气溶胶粒子 季节性特征 环境影响 X射线能谱 雪山 人为影响 喜马拉雅山 |
| 收稿时间： | 29 August 2008 |
| 修稿时间： | 6 November 2008 |
Seasonal features of aerosol particles recorded in snow from Mt. Qomolangma (Everest) and their environmental implications |
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| CONG Zhiyuan,KANG Shichang,QIN Dahe.Seasonal features of aerosol particles recorded in snow from Mt. Qomolangma (Everest) and their environmental implications[J].Journal of Environmental Sciences,2009,21(7):914-919. | |
| Authors: | CONG Zhiyuan KANG Shichang and QIN Dahe |
| Institution: | 1. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China; Graduate University of the Chinese Academy of Sciences, Beijing 100049, China 2. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;State Key Laboratory of Cryospheric Science, Chinese Academy of Sciences, Lanzhou 730000, China 3. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China |
| Abstract: | To assess the seasonality of aerosol deposition and anthropogenic effects on central Himalayas, a 1.85-m deep snow pit was dug on the northern slope of Mr. Qomolangma (Everest). Based on the morphology and energy dispersive X-ray (EDX) signal, totally 1500 particles were classed into 7 groups: soot; aluminosilicates; fly ash; calcium sulfates; Ca/Mg carbonates; metal oxides; and biological particles and carbon fragments. The size distribution and number fractions of different particle groups exhibited distinct seasonal variations between non-monsoon and monsoon periods, which are clearly related to the differences in air mass pathways. Specifically, the relative abundance of soot in non-monsoon period (25%) was much higher than that in monsoon period (14%), indicating Mr. Qomolangma region received more anthropogenic influence in non-monsoon than monsoon period. |
| Keywords: | Mt Qomolangma seasonality SEM-EDX aerosol particle |
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