Title: Sediment phosphorus fractions in an urban lake and its usability for predicting of the internal loading phenomenon

Authors: Renata Brzozowska; Grzegorz Wiśniewski; Julita Dunalska; Zofia Filipkowska

Addresses: Department of Water Protection Engineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego st. 1, 10-720 Olsztyn, Poland ' Department of Water Protection Engineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego st. 1, 10-720 Olsztyn, Poland ' Department of Water Protection Engineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego st. 1, 10-720 Olsztyn, Poland ' Department of Environmental Microbiology, University of Warmia and Mazury in Olsztyn, Prawocheńskiego st. 1, 10-720 Olsztyn, Poland

Abstract: The object of present study was Sukiel Lake (area 20.8 ha, max. depth 25 m), localised in north-eastern Poland (Mazurian Lake District), in Olsztyn city. The aim of this study was to analyse the phosphorus fractions in the sediments of two lake bottom zones - profundal (25 m) and sublittoral (7 m). Observed high P concentrations in the deposits of Sukiel Lake and quantitative domination of hard mobile P fractions (NaOH-TP, HCl-P and res-P) suggest that the sediments of Sukiel Lake are the effective trap for phosphorus and that limits excessive internal loading in this lake.

Keywords: urban lakes; bottom sediments; phosphorus fractions; internal loading; Poland; water pollution; water quality.

DOI: 10.1504/IJENVH.2013.056975

International Journal of Environment and Health, 2013 Vol.6 No.4, pp.340 - 349

Available online: 03 Oct 2013 *

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