Annual Fluctuation of pH of Total Deposition with a Dust Jar Sampler. Annual Variations of pH and Calcium Concentration of Soluble Fraction.:—Annual Variations of pH and Calcium Concetration of Soluble Fraction—
スポンサーリンク
概要
- 論文の詳細を見る
Annual fluctuations of pH and ion concentrations of soluble fraction in total deposition with a dust jar sampler were investigated during eight years (1984-1992) in Sendai city. The following results were acquired.<BR>1) The acidification of soluble fraction in total deposition was observed at about 0.085 of pH in every year.<BR>2) The soluble fraction between spring and summer was revealed to be slightly low pH in the comparison between autumn and winter.<BR>3) As the results of factor analysis for pH and ion concentrations, the first factors were pH and Ca<SUP>2+</SUP>, the second one were Cl<SUP>-</SUP> and Na<SUP>+</SUP>, and the third one was SO<SUB>4</SUB><SUP>2-</SUP>.<BR>4) It was suggested that the reason of reduce for calcium concentration of soluble fraction might be the decrease of road dust caused by the car with studded tire which was restricted to use recently. The annual fluctuation of calcium concentration were great enough to affect pH.
- 日本環境化学会の論文
日本環境化学会 | 論文
- 廃棄物埋立地浸出水および処理水中の無機成分、ジオキサン、フェノール類およびフタル酸エステル類の濃度
- 有機スズ代替船底防汚剤による広島湾北部海域の底質汚染状況
- 広島湾北部における有機スズ代替船底防汚剤による海域の汚染状況について
- 難燃処理済スチレンポリマー中のポリ臭素化ジフェニルエーテルの溶媒抽出及び熱脱着 GC/MS 分析
- プレカラム分離導入システムを用いたダイオキシン類の測定