Results of a hydrochemical and hydrobotanical study of the water bodies in an area of the Kazym river basin in the Numto natural park

The paper discusses the results of a study of the aquatic environment and the aquatic macrophyte species composition in 21 water bodies of the Numto Natural Park (the basin of the Kazym River, Beloyarsky District, Khanty-Mansiysk Autonomous District-Ugra, Tyumen Region). The studied water samples contained bicarbonate calcium, sweet soft, low-hardness water. The mineralization of water was 0.01-0.07 g/dm3, hardness 0.04-0.76 meq/dm3, рН = 5.5-7.3, color 13-226 degrees of chromium cobalt scale, general alkalinity 0.04-0.88 mmol/dm3. The content of soluble forms of lead in water was between 0.07 to 1.04 µg/dm3, that of nickel between 0.09 to 1.93 µg/dm3, cadmium between 0.03 to 0.07 µg/dm3, chromium between 0.22 to 0.83 µg/dm3, zinc between 3.89 to 37.60 µg/dm3, copper between 0.13 to 0.63 µg/dm3, manganese between 2.07 to 36.82 µg/dm3, iron between 7.91 to 2215...