樹氷中の溶解成分による大気環境評価の試み [in Japanese] Evaluation of atmospheric environment by soluble components in rime [in Japanese]
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Rime and snow samples were collected at mountain sites in Kyushu for 2 years, from 1990 to 1992. The soluble substance in rime and snow were measured to evaluate the atmospheric environments of the mountain region. It was found that the ion concentrations in rime melt samples were considerably higher than those of snow and that pH of the rime melts was lower than that of snow. No influence from carrier plants upon soluble components in rime was found. In the light of the relative composition of both anion and cation in rime, it seems that the origins of acid components in rime differ from those of snow. From these results, it is suggested that rime reflects local atmosphere situation at the sampling sites better than snow. Therefore, for evaluation of atmospheric environments, it is conceivable that rime will be a useful indicator.
Chikyukagaku 27(2), 65-72, 1993
The Geochemical Society of Japan