ІRSTІ 87.31.91                                                                                       №3 (2019г.)

Kurmanbayeva A.S., Khusainov A.T., Zhumay E.

The article considers of the research of ecological condition of lake Burabai State at the national natural park “Burabai”. The authors study the dynamics of water volume for 30 years and the index of water pollution for 10 years, the hydrochemical composition of water in the lake “Burabay”. It was found that the degree of the pollution in 2009 – 2017 was moderate and in 2018 in comparison with the previous years was actually cleaner. The main sources of the lake pollution are industrial and domestic effluents, untreated rain and melt water, various leaks from tanks, pipelines and other facilities. It was established that the fluoride content exceeds several times the maximum permissible concentration.
Keywords: pollution, hydrochemical analysis, anthropogenic load, lake ecosystems.