водокористування

It is analysed the condition of water resources and the level of its usage. It is predetermined the optimization of natures use of West Bug river basin sustem on the territoru of Volun region.

Purpose. Estimation of ecological safety of spring waters of the city of Kharkiv. Methods. Field research, atomic absorption spectrophotometry, analytical methods for studying water quality indicators. Results. Natural water samples were analyzed on the following parameters: pH, electrical potential, nitrate content, chlorides, ammonia, transparency, turbidity, and water hardness. The highest values of the content of nitrates, nitrites, as well as the level of alkalinity and rigidity were found in a sample from the Kholodnogorsk spring. In the water from the Zhukovsky spring the high content of chlorides is found, which is one and a half times higher than the concentration in water from other city springs. In the water from the Glyboky Yar spring the lowest mineralization of water was detected, and in the water from the Sarzhin Yar spring - the highest of the studied samples of water from the natural springs of Kharkiv. However, all identified pollutant concentrations except for the rigidity index is not dangerous for a person, because they are not exceeded by the MAC. The results of research on water samples from the Sarzhin Yar spring and from the spring in Yunost park (Kholodnogorsk source) in 2019, compared to the results of a similar study conducted in 2015. It was determined that in the water from the Sarzhin Yar spring the rigidity index increased 3.4 times, and in the sample from the spring in Yunost park (Kholodnogorsk spring) almost 6 times. Conclusions. It is determined that in the territory of the city of Kharkiv, water from the Zhukovskii spring in the Kyivskiy district is fully suitable for consumption, because its chemical composition is fully in line with the sanitary norms that apply to drinking spring waters. The value of the level of hardness of water in all samples, except Zhukovsky spring, indicate that the normative value exceeds 2-3 times. The rigidity of drinking water that exceeds the MAC may adversely affect human health. Therefore, the only ecologically safe, among the investigated, can be considered water from the Zhukovsky spring (Kievskiy district in Kharkiv). For other sources, it is recommended to modernize the water collection sites for the population, reconstruct the system of water supply for the supply of water from these sources, as well as to introduce additional stages of their treatment on the way to the consumer.

The article presents the scientific rationale, general requirements and principles set standards of ecological safety for water of water objects of fishery; it has been formulated requirements for water quality of surface water objects to ensure normal functioning of aquatic geoecosystem. It has been also developed and worked instructional techniques and procedures for establishing standards of ecological safety of water management - fishery the maximum concentration limit substances. Generalized results establish ecological and fisheries fishery standard - the maximum concentration limit (MCL) morpholine. In terms of the value of the MCL (0.125 mg / l), stability in the aquatic environment (reduc-tion of 95% concentration is 32 days), the index of material accumulation in organs and tissues of fish (0,85-2,4), the degree of factor of defeat aquatic geoecosystem ( 1.1) morpholine belongs to 3 hazard class.

There are the analysis of the ecological status of water resources Luhansk region for the period of 2007-2011. Also determine the environmental situation in the Seversky Donets River and the sources of pollution. The worst ecological situation in the rivers Lugan and the Seversky Donets River, where most of the water quality is classified as contaminated. The basic amount of pollutants into the Seversky Donets river basin within the Lu-gansk region comes from discharges of chemical and coal industry, housing and utilities directly to the river channels.

Analyzes the development of tourism and recreation in the basins of lakes Turiysk district; the characteristics of the overall ecological condition, morphometric and hydrochemical characteristics of the lake waters; assesses the suitability of lakes for recreational purposes. The perspective development of tourism and recreation of the study area.