Abstract:The information-analytical system (IAS) "Monitoring of aquatic ecosystems" was developed for the analysis of ecological lakes condition in Kazakhstan. It consists of a database on hydrochemical and hydrobiological characteristics for lakes Burabai and Ulken Shabakty in Shchuchinsk-Borovoye resort area of the Republic of Kazakhstan, as well as a set of statistical data processing methods. Qualitative analysis of data was made on the lakes. Data on biogenic substances for the years 2007-2013 were analyzed based on statistics. Dynamic characteristics and seasonal features of changes were identified in the concentrations of biogens. There is an absence of significant relationships between the concentrations of various biogenic substances in lakes and between lakes. Nitrogen substances were compared. The phosphorus compounds have a large stability that can contribute to a more stable life of phytoplankton species which are related to phosphorus.

A significant part of the territory of Kazakhstan is characterized by a high natural background radiation of soils and rocks, the spread of natural ground and underground waters with high concentrations of radionuclides in the regions of uranium, thorium and rare metal ore provinces and regions. Therefore, conducting high-quality radio monitoring of the state of the environment using modern information systems will make it possible to predict the background radiation in a timely manner and outline measures to reduce environmental risks to the health of the nation as a whole. Key words: radioecology, monitoring, life safety, radionuclides, national health.