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Aerosol samples were collected in the Shiyi Glacier, Qilian Mountains from July 24 to August 19, 2012 and analyzed formajor water-soluble ionic species (F^-, Cl^-, NO2^-, NO3^-, SO4^2-, Na^+, NH4^+, K^+, Mg^2+ and Ca^2+) by ion chromatography.SO4^2- and N