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Trace elements in water and sediments of the Tigris river, Baghdad City, Iraq
Geological Survey of Finland, P.O.Box 96, 02151 Espoo.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Koya University.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
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2014 (English)In: Journal of Environmental Hydrology, ISSN 1058-3912, E-ISSN 1996-7918, Vol. 22, 1-17 p., 6Article in journal (Refereed) Published
Abstract [en]

Industrial, agricultural and rural activities may result in pollution of watercourses with elevated trace metal concentrations and implications for water supply and ecosystem functioning. The concentration of the trace metals Fe, Mn, Zn, Co, Pb, Cu, and Cd in the water and clay fractions (<2μm) of the bank sediments of River Tigris in Baghdad city were determined. Dissolved trace metals concentrations were far below the upper permissible limits during 2012-2013. There was no consistent pattern between element concentrations and river discharge. Seasonal interrelations between water and sediments were most obvious for Fe that decreased in both environments with rising flows during autumn. Although independent of discharge, Mn in water and sediments often followed each other at all stations. Zinc, however, increased in the sediments and decreased in the water with discharge. The clay fractions were slightly to strongly enriched in trace metals with the gradient Co > Fe > Zn > Mn > Cu suggesting absorption of the metals on sediment substrate.

Place, publisher, year, edition, pages
2014. Vol. 22, 1-17 p., 6
Research subject
Soil Mechanics; Applied Geology
URN: urn:nbn:se:ltu:diva-15597Local ID: f2252d2a-e200-48e3-8b35-4832d40cbdb9OAI: diva2:988571
Validerad; 2015; Nivå 1; 20141218 (nadhir)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

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