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Photochemical release of humic and fulvic acid-bound metals from simulated soil and streamwater
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SYSNO ASEP 0326119 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Photochemical release of humic and fulvic acid-bound metals from simulated soil and streamwater Title Fotochemické uvolňování kovů vázaných na huminové a fulvo kyseliny v uměle připravených půdních a povrchových vodách Author(s) Porcal, Petr (BC-A) RID, ORCID
Amirbahman, A. (US)
Kopáček, Jiří (BC-A) RID, ORCID
Novák, František (BC-A) RID
Norton, S. A. (US)Source Title Journal of Environmental Monitoring - ISSN 1464-0325
Roč. 11, č. 5 (2009), s. 1064-1071Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords dissolved organic matter ; irradiation ; iron ; aluminium Subject RIV CE - Biochemistry R&D Projects GA206/06/0410 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) AV0Z60660521 - UPB-H, BC-A (2005-2011) UT WOS 000266004000018 DOI 10.1039/b812330f Annotation This study demonstrates the strong impact of photochemical degradation of soil dissolved organic matter (DOM) on its metal complexing capacity. The role of light in the fate of organically-bound metals transported from soils to surface waters was studied in laboratory experiments. We studied four humic and one fulvic acid isolates from different soil horizons in the Bohemian Forest (Czech Republic). The greatest decrease in the organically-bound metal concentrations occurred for the fulvic acid, and the smallest decrease occurred for the humic acid from the deepest soil horizon. The extrapolation of laboratory experiments to in-situ conditions suggested that the DOM’s ability to bind metals changes greatly within the first few hours after groundwater enters the stream. The rapid degradation of organically-bound Al and Fe can be an important process in first and second-order streams, and lake epilimnia. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2010
Number of the records: 1