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 totalaerosol 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. Aerosol and snow samples were collected at ablation zone of Baishui Glacier No. 1, Mt. Yulong, 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 load was 25.45 neq · scm-1, NO3- and Na + are the dominant soluble ions in the aerosol, accounting for 39% and 21% of the average total aerosol loading, respectively. Monsoon backward 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. An analysis of 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 from long -distance transport. Enrichment of NO3-in aerosol samples is a ttributed to motor exhaust emissions from tourism by calculating the SO42- / NO3-ratio in aerosol and fresh snow samples. temporal transition 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.