| Phosphorus retention patterns along the Tisza River, Hungary. | |
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MedLine Citation:
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PMID: 19182352 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to assess in-stream retention of suspended solids (SS) and total phosphorus (TP) at low flow condition in a large watercourse, the Tisza River. The analysis was based on a longitudinal water quality profile obtained in July 2006 during a cruise along the Hungarian section of the river (nearly 600 km). Water samples were taken manually for SS and TP every half an hour (ca. 5.5 km). Additionally, concentration of SS was calculated from on-line turbidity records taken every 6 s (ca. 10 m). Velocity field was calculated with a 1D hydrodynamic model calibrated for low flow conditions. To describe the transport, a simple first-order equation was adjusted to the SS profile after estimating the potential maximum of SS that the flow with the given velocity could transport. Specific P content of SS was related to velocity to estimate longitudinal TP profile. Retention of TP amounted to 42% along the Hungarian section of the Tisza River at a flow of 110 m(3) s(-1). Storage reservoirs significantly influenced the longitudinal retention pattern. Upstream of Dam II (river kilometre 404), net TP retention reached 73%, while the downstream section was a source of TP. |
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Authors:
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A Kovács; Zs Kozma; V Istvánovics; M Honti |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Water science and technology : a journal of the International Association on Water Pollution Research Volume: 59 ISSN: 0273-1223 ISO Abbreviation: Water Sci. Technol. Publication Date: 2009 |
Date Detail:
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Created Date: 2009-02-02 Completed Date: 2009-03-31 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9879497 Medline TA: Water Sci Technol Country: England |
Other Details:
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Languages: eng Pagination: 391-7 Citation Subset: IM |
Affiliation:
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Department of Sanitary and Environmental Engineering, Budapest University of Technology and Economics, Miiegyetem rakpart 3, H-1111, Budapest, Hungary. kovax@vkkt.bme.hu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Environmental Monitoring* Geography Hungary Phosphorus / analysis* Rivers / chemistry* |
| Chemical | |
Reg. No./Substance:
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7723-14-0/Phosphorus |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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