Beryllium Geochemistry in the Lesni Potok Catchment (Czech Republik), 7 Years of Systematic Study

0145415 - GLU-S 20023038 RIV NL eng J - Článek v odborném periodiku
Navrátil, Tomáš - Skřivan, Petr - Minařík, Luděk - Žigová, Anna
Beryllium Geochemistry in the Lesni Potok Catchment (Czech Republik), 7 Years of Systematic Study.
Aquatic Geochemistry. Roč. 8, č. 2 (2002), s. 121-133. ISSN 1380-6165. E-ISSN 1573-1421
Grant CEP: GA AV ČR IAB3013203; GA MŠMT ME 147
Výzkumný záměr: CEZ:AV0Z3013912
Klíčová slova: beryllium * speciation * water
Kód oboru RIV: DD - Geochemie
Impakt faktor: 1.243, rok: 2002

The biogeochemical study was carried out at the Lesni potok (LP) catchment, Central Bohemia, Czech Republic. The ecosystem was impacted by heavy acid deposition during the industrial development in 1980-1990. The catchment is forested mostly by two tree species, Norway spruce and European beech. The Be concentration in the granite bedrock is 12.6 mg kg-1. Elevated concentration of Be (5.4 ?g L-1) in surface waters is a result of its mobilization from the soils (3.9 mg kg-1) and weathered rock by acid precipitation. As the pH of the precipitation and consecutively pH of the surface waters is increasing in the Czech Republic, the Be concentrations in the surface waters gradually decrease. Groundwater with high pH values contains lower concentrations of Be (0.17 ?g L-1) than surface waters. The monitoring of Be in the environment is important with respect to its possible harmful effects on aquatic biota and root systems of the plants.
Trvalý link: http://hdl.handle.net/11104/0043015