Long-Term Variation of Heavy Metal Pollution Level in Soils and Roadside Dusts along Sightseeing Roadways around Kamikochi
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概要
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Seasonal and chronological analysis for heavy metal pollution level along sightseeing roadways around Kamikochi, Chubu Sangaku National Park has been adopted from 1998 to 2001. Seasonal variation in heavy metal concentrations and their relationships to the traffic volume were very complex and difficult to find out a clear connection. However, the concentrations tended to increase in summer compared with winter, which suggested a mild time-trend variation following number of visitor.<BR>The statistical analysis of chronological increase or decrease showed that locations where geologically higher concentration have wide time-trend variation and chronological increase is obvious in alpine area where pollution source is limited. In addition, it was considered that the source and exhausted form have important influences on the pollution trend.
- 日本環境化学会の論文
日本環境化学会 | 論文
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