Investigation of Fa11ing Dusts in Yukuhashi City
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概要
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Amounts of falling dusts and rain waters collected by the deposit gauge method were measured from April 1974 to March 1990 at 8 locations in Yukuhashi City.<BR>The results showed that the amount of water-soluble matter decreased steadily year by year. A large percentage of pH values was within a range of 4.00-4.99, and yearly averages of pH value decreased steadily year by year. On account of dryness and prevailing westerly wind in winter, lime stone dust from the opencut mines and the cement factories reached Yukuhashi City, and pH of the reservoir water was neutralized partially.
- 社団法人 大気環境学会の論文
社団法人 大気環境学会 | 論文
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