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- Title
Peat properties, major and trace element accumulation in bog peat in Latvia.
- Authors
Klavins, Maris; Silamikele, Inese; Nikodemus, Olgerts; Kalnina, Laimdota; Kuske, Eliza; Rodinov, Valery; Purmalis, Oskars
- Abstract
In this study the trace and major elements and the character of their accumulation in peat, with a particular emphasis on peat properties and the impact of local and regional pollution sources on the character of element accumulation in the ombrotrophic bogs in Latvia, have been analysed. The values of the element concentrations in peat taken from 44 bogs in Latvia reflect the local processes of element concentrations in the peat mass indicating accumulation of trace elements, apparently of anthropogenic origin (Pb, Cd, Co, Ni and others), in the upper layers of the peat profiles. In addition they indicate accumulation of several elements (for example, As, Cr, and others) in deeper layers of bog, possibly due to the feeding pattern, depending on the saturation of the groundwater. The trace element sorption capacity onto peat is influenced by the peat properties and depends on the concentration of oxygen containing functional groups in peat and is growing with an increasing degree of decomposition and humic/fulvic acid ratio of the peat humic matter. Peat seems to be largely unsaturated in respect to metal ions, but the peat sorption capacity can be correlated with the presence of nitrogen containing ligands and humic/fulvic acid ratio.
- Subjects
LATVIA; PEAT; BIOACCUMULATION; TRACE elements; PEAT bogs; POLLUTION
- Publication
Baltica, 2009, Vol 22, Issue 1, p37
- ISSN
0067-3064
- Publication type
Article