Chemical composition of aerosol and fresh snow and tourism influences at Baishui Glacier No. 1 from Mt. Yulong, Southeastern Tibetan Plateau

被引:0
|
作者
Ningning Zhang
Yuanqing He
Wilfred H. Theakstone
Hongxi Pang
机构
[1] Chinese Academy of Sciences,State Key Laboratory of Cryospheric Sciences, Yulong Snow Mountain Glacial and Environmental Observation Station, Cold and Arid Regions Environmental and Engineering Research Institute
[2] Graduate University of Chinese Academy of Sciences,Institute of Environment and Climate Change Research in Western China
[3] Lanzhou University,School of Environment and Development
[4] University of Manchester,Key Laboratory for Coast and Island Development of Ministry of Education
[5] School of Geographic and Oceanographic Sciences of Nanjing University,State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute
[6] Chinese Academy of Sciences,undefined
来源
Journal of Earth Science | 2010年 / 21卷
关键词
aerosol; fresh snow; glacier; Mt. Yulong; tourism;
D O I
暂无
中图分类号
学科分类号
摘要
Aerosol and snow samples were collected at ablation zone of Baishui (白水) Glacier No. 1, Mt. Yulong (玉龙), from May to June, 2006. The concentrations of Cl−, NO3−, SO42−, Na+, K+, Mg2+, and Ca2+ were determined by ion chromatograph both in aerosol and snow samples. The average total aerosol loading is 25.45 neq·scm−1, NO3− and Na+ are the dominant soluble ions in the aerosol, accounting for 39% and 21% of average total aerosol loading, respectively. Monsoon circulation reduces the concentration of most ions, indicating that wet scavenging is effective for aerosol particles. In snow samples, SO42− and Ca2+ are the dominant anion and cation, respectively. A lower Na+/Cl− ratio was found in fresh snow samples compared to the higher ratio that was found in aerosol samples. Analyzing the difference in SO42− and NO3− in air and fresh snow indicated that the aerosol was influenced by local circulation, but the components in fresh snow samples were from long-distance transport. Enrichment of NO3− in aerosol samples is attributed to motor exhaust emissions from tourism by calculating the SO42−/NO3− ratio in aerosol and fresh snow samples. The temporal variation and correlation coefficients between soluble species in aerosol samples suggest that Cl−, Na+ and K+ come from sea-salt aerosol, and SO42−, Mg2+ and Ca2+ are from continental crust sources.
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页码:199 / 209
页数:10
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