Szukana fraza: [Abstract = "The article studies directions of changes in the physical, chemical and bacteriological composition of the waters in Sława Lake \(817, 3 ha\) being the main tourist attraction in the vicinity of Łagów in the Lubuski Region. Apart from that, the basin of this lake gives the beginning to the river Obrzyca which is the major source of drinking water \(approx 34 thousand m3 a day\) for the city of Zielona Góra \(approx 120 thousand inhabitants\)thus requires a special protection."]
