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HCOO − and CH 3 COO − concentrations were analyzed in precipitation samples collected at two sites on Jeju Island during 1997–2003: one at Mt. Halla and the other within Jeju City. The volume-weighted mean concentrations of HCOO − and CH 3 COO − were 1.28 and 0.89μmol/L at Mt. Halla, and 2.06 and 1.15μmol/L in Jeju City, respectively. Those ionic components...
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