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Speciation of heavy metals in road runoff and roadside total deposition
Örebro University, Department of Natural Sciences.ORCID iD: 0000-0002-2674-4994
Örebro University, Department of Natural Sciences.ORCID iD: 0000-0002-2104-4593
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2003 (English)In: Water, Air and Soil Pollution, ISSN 0049-6979, E-ISSN 1573-2932, Vol. 147, no 1-4, p. 343-366Article in journal (Refereed) Published
Abstract [en]

The concentrations of Cd, Co, Cu, Pb, W and Zn were measured in road runoff and total deposition at two Swedish field sites during one year. It was found that the concentrations of most elements increased significantly during the winter, up to one order of magnitude. For cobalt and tungsten, it was found that around 90% of the total mass transport occurred during the winter, whereas for Cu, Pb, Cd, Zn and Na, the corresponding figures were 70–90, 40–80, 60–90, 50–70 and >99% depending on site specific conditions. The deicing salts (rock salts) did not significantly contribute to the increase in trace element concentrations. Instead, the increased concentrations were due to more intense wearing of the pavement during the winter because of the use of studded tires in combination with the chemical effects caused by the use of deicing salts. New potential elemental markers for roads and traffic are suggested.

Place, publisher, year, edition, pages
2003. Vol. 147, no 1-4, p. 343-366
National Category
Natural Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-5196DOI: 10.1023/A:1024545916834OAI: oai:DiVA.org:oru-5196DiVA, id: diva2:158155
Available from: 2009-01-30 Created: 2009-01-30 Last updated: 2017-12-14Bibliographically approved
In thesis
1. On the chemical state and mobility of lead and other trace elements at the biogeosphere/technosphere interface
Open this publication in new window or tab >>On the chemical state and mobility of lead and other trace elements at the biogeosphere/technosphere interface
2002 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Most inorganic contamination has occurred at the interface between the technosphere and the biogeosphere, even though atmospheric emissions have affected the entire globe. Several human activities now pose a substantial threat towards human health and the ecosystems. It was thus decided to study lead as an element with significant anthropogenic emissions in a variety of sources and environments. Lead and other trace elements were studied in groundwaters used for drinking water, in roadside environments, at a shooting range and in a contaminated lake in order to obtain information about mobility and redistribution in different hydrobiogeochemical environments.

It was found that 60% of the investigated drilled wells in crystalline bedrock failed to meet international health safety limits. This was mainly due to the presence of enhanced concentrations of fluoride and uranium.

Along roads the concentrations and massfluxes increased significantly for lead, as well as for otheer elements during the winter. This is most likely due to increased pavement wear as a consequence of studded tires and use of deicing salts. The mobility of trace elements also increased in the roadside soils, threatening the shallow groundwater.

At the shooting range it was found that the downward migration of lead was greater than expected and equilibrium with cerussite was suggested from solid speciation and geochemical calculations. Antimony was associated with lead and showed, despite differences in chemical properties, a similar distribution pattern. This was due to the fact that the major part of the transport at the shooting range was physical.

In the contaminated lake, several findings regarding the solid speciation of lead was confirmed and other information about redistribution into the hypolimnion from the sediment was gained.

Place, publisher, year, edition, pages
Örebro: Örebro universitetsbibliotek, 2002. p. 42
Series
Örebro Studies in Chemistry, ISSN 1651-4270 ; 1
Keywords
lead, trace elements, traffic, shooting range, peat, sediments, speciation, biokemi
National Category
Chemical Sciences
Research subject
Chemistry
Identifiers
urn:nbn:se:oru:diva-9 (URN)91-7668-313-3 (ISBN)
Public defence
2002-10-18, Hörsal P, Örebro universitet, Fakultetsgatan 1, Örebro, 10:15
Opponent
Available from: 2002-10-18 Created: 2002-10-18 Last updated: 2017-10-18Bibliographically approved

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Bäckström, MattiasAllard, BertKarlsson, Stefan

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