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Linking Cellulose F...
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Regnell, OlofLund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science
(författare)
Linking Cellulose Fiber Sediment Methyl Mercury Levels to Organic Matter Decay and Major Element Composition.
- Artikel/kapitelEngelska2014
Förlag, utgivningsår, omfång ...
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2014-01-14
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Springer Science and Business Media LLC,2014
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:710b3358-653f-4a08-8697-94bb0403045e
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https://lup.lub.lu.se/record/4291497URI
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https://doi.org/10.1007/s13280-013-0487-2DOI
Kompletterande språkuppgifter
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Språk:engelska
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Sammanfattning på:engelska
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Klassifikation
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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Methylation of mercury (Hg) to highly toxic methyl Hg (MeHg), a process known to occur when organic matter (OM) decomposition leads to anoxia, is considered a worldwide threat to aquatic ecosystems and human health. We measured temporal and spatial variations in sediment MeHg, total Hg (THg), and major elements in a freshwater lagoon in Sweden polluted with Hg-laden cellulose fibers. Fiber decomposition, confined to a narrow surface layer, resulted in loss of carbon (C), uptake of nitrogen (N), phosphorus (P), and sulfur (S), and increased MeHg levels. Notably, fiber decomposition and subsequent erosion of fiber residues will cause buried contaminants to gradually come closer to the sediment-water interface. At an adjacent site where decomposed fiber accumulated, there was a gain in C and a loss of S when MeHg increased. As evidenced by correlation patterns and vertical chemical profiles, reduced S may have fueled C-fixation and Hg methylation at this site.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Elert, Mark
(författare)
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Höglund, Lars Olof
(författare)
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Falk, Anna Helena
(författare)
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Svensson, Anders
(författare)
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Enhet akvatisk ekologiBiologiska institutionen
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Ambio: a Journal of Human Environment: Springer Science and Business Media LLC43:7, s. 878-8900044-7447
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Ingår i:AMBIO: Springer Science and Business Media LLC43:7, s. 878-8901654-7209
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