Leaching Characteristics of Heavy Metals in Road Dust in Tokyo
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- MURAKAMI Michio
- Department of Urban Engineering, The University of Tokyo
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- NAKAJIMA Fumiyuki
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo
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- FURUMAI Hiroaki
- Department of Urban Engineering, The University of Tokyo
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- KATO Yuji
- Department of Urban Engineering, The University of Tokyo
Bibliographic Information
- Other Title
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- 東京都内の道路塵埃中重金属類の溶出特性
- トウキョウ トナイ ノ ドウロ ジンアイ チュウ ジュウキンゾクルイ ノ ヨウシュツ トクセイ
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Abstract
Leaching tests on road dust are necessary to clarify the transport of heavy metals in water cycle in urban areas. In this study, leaching tests were conducted to evaluate the leaching characteristics of heavy metals from road dust in a heavy-traffic area and in a residential area. The results show that the leached concentrations of Cr, Fe, Ni and Cu from road dust in the heavy-traffic area were significantly higher than those from road dust in the residential area. Additionally, the leached fractions of Cr from road dust in the heavy-traffic area were also significantly larger than those from road dust in the residential area. The leached fractions of Cr from road dust seem to be derived from traffic sign markers such as yellow paint. Leaching tests on size-fractionated road dust revealed that the leached concentrations of Al, Cr, Cu, As and Cd were higher in their fine fractions (< 106 μm), whereas the leached concentrations of Mn, Zn and Pb were higher in their coarse fractions (106∼2000 μm). There were different tendencies in leaching characteristics from fine to coarse fractions among the heavy metals.
Journal
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- Journal of Japan Society on Water Environment
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Journal of Japan Society on Water Environment 29 (11), 731-735, 2006
Japan Society on Water Environment
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Details 詳細情報について
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- CRID
- 1390282680057842432
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- NII Article ID
- 10019371293
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- NII Book ID
- AN10372439
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- COI
- 1:CAS:528:DC%2BD2sXhtFChug%3D%3D
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- ISSN
- 18813690
- 09168958
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- NDL BIB ID
- 8573766
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed