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Klavins M.,University of Latvia | Kokorite I.,University of Latvia | Jankevica M.,University of Latvia | Mazeika J.,Lithuanian Nature Research Center | Rodinov V.,University of Latvia
Recent Researches in Geography, Geology, Energy, Environment and Biomedicine - Proc. of the 4th WSEAS Int. Conf. on EMESEG'11, 2nd Int. Conf. on WORLD-GEO'11, 5th Int. Conf. on EDEB'11

Environmental pollution with trace elements is considered as one of the most important environmental problems. Analysis of trace element accumulation in sedimentary phases of waterbodies (lakes) may reflect the overall regional pollution level, but analysis of trace element accumulation patterns in sediment profiles can help to reconstruct history of anthropogenic impacts. The aim of this study was to analyse trace element concentrations in the sediments in lakes of different origin in Latvia and analyze factors influencing their availability. The metal concentrations in sediments of lakes in Latvia are at a background levels, especially of compared with metal concentrations in West European countries. However analysis of element concentration changes in sedimentary profiles gives information about trends of recent accumulation (within last 150 years) and balance between natural and human induced accumulation processes. Source

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