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Asphalt wear and pollution transport
Luleå tekniska universitet.
1996 (English)In: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 189-190, p. 281-286Article in journal (Refereed) Published
Abstract [en]

Studded tires cause extensive wear of road surfaces during winter producing small particles. Besides transporting different adsorbed pollutants these particles also discharge metal ions by their own natural content. The major part (95%) of the asphalt is composed of stone fractions. The rest consists mainly of bitumen, which contains trace quantities of metals. Laboratory studies in this study have demonstrated different adsorbing properties of metal ions, as well as differences in adsorption when comparing stone materials. Two stone materials, a gabbro and a porphyry, have been tested for their adsorption properties concerning Pb, Cu, Zn and Cd. The gabbro showed better adsorption capacity than the porphyry. Gabbro has coarser grains, it is softer, and also has a higher content of most metals compared to the porphyry. In all tests lead and copper are more adsorbed than zinc and cadmium. All metal ions are released at about the same pH ({approx}4)

Place, publisher, year, edition, pages
1996. Vol. 189-190, p. 281-286
National Category
Water Engineering
Research subject
Urban Water Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-2698DOI: 10.1016/0048-9697(96)05220-5ISI: A1996VN11000038Scopus ID: 2-s2.0-0029769283Local ID: 05ef8240-b0b3-11dd-9c9d-000ea68e967bOAI: oai:DiVA.org:ltu-2698DiVA, id: diva2:975551
Note
Godkänd; 1996; 20081112 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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