Analysis of the quality of water resources of the Republic of Kazakhstan
The article summarizes and analyzes the data of observations on the condition of water resources of the Republic of Kazakhstan. The rivers and lakes of Kazakhstan are sources of water consumed by the population of the country for various needs, while the availability of water is reduced, and the demand for it is growing due to the development of large cities and expansion of business in various regions of the country. Therefore the problem of saving and rational usage of available water resources is topical. The article shows the factors affecting the quality of water in open reservoirs as well as the results of observations of fresh water sources for five years. The analysis of data presented testifies to the deterioration of the environmental situation as a whole. The number of water resources having class of hazard «pure» is decreasing, and the number of water sources of «dirty» and «very dirty» classes is increasing. It is noted that the most contaminated areas are the territories of East Kazakhstan and Karaganda, Aktobe and Zhambyl regions. The level of pollution of fifteen water resources was determined, it was noted that the main pollutants are zinc, manganese, nickel and nitrogen compounds. The analysis of the data presented indicates the need to address the serious problem caused by fresh water pollution due to an increase in the amount of sewage, and ways to solve this problem should have a legislative basis that will protect the environment from the harmful effects of anthropogenic factors.