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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.01 seconds. 
The properties of surface waters affected by coal mining.
 FAFÍLKOVÁ, Veronika
I watched the chemical characteristics of wetlands and surface waters in the vicinity of Lake Medard. This lake is a residual hole (after brown coal mining activities) which is now being filled with water. It is situated in Sokolov cadastre. I used physical, chemical and biological characteristics of water to characterize the surface water. The values have been compared with indicators of other surface water ecosystems. They were compared with Eger river water and with water from the south Bohemian fishponds. Results of comparing showed that all parameters of observed waters are very different. Surveyed parameters of the average concentrations are several times higher or on the contrary lower at individual sites of interest. Sites of interest are characterized by high levels of dissolved substances in water. Particularly problematic are sulphate anion concentrations and concentrations of Na, Ca, Mg, Zn, Mn and Fe cations.
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Pohyb důlních vod v mělkém středověkém Dole Jeroným (Česká republika)
 Kaláb, Zdeněk ; Hrubešová, E. ; Knejzlík, Jaromír ; Kořínek, R. ; Kukutsch, Radovan ; Lednická, Markéta ; Žůrek, P.
Mine waters in the Jeroným Mine can be divided into following types: running, influent and flowing waters, water accumulated in closed drainless expanses, waters in expanses with natural or man-made outflow. Mine water flow is significant, small drain exists in some parts during the whole year. First sudden and significant increasing of mine water level is obviously related with marked changes of surface water amount (spates or snow-melt). Low increases of water level are not always dependent on precipitation amount and there other influencing factors exist probably.
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