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Lake and ground water in the catchment areas of Piaseczno (mesotrophic), Łukie (eutrophic) and Moszne (dystrophic) lakes located in the Polesie Region (South-Eastern Poland) were studied in 1996–1997. Ground water were sampled from the wells installed on the lake shores (several metres from the shoreline) and lake water from the littoral zone next to the wells. EC, pH, concentration of Ca, Mg, K,...
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