ABSTRACT.
Most of the most important industries cannot exist without water. At nuclear power plants (NPPs),
water is needed both for technological needs and for auxiliary needs - drinking water, use in re-water supply systems,
replenishment and purging of the cooling pond, etc. In total, in the Russian Federation there are 36 power units at 11
operating nuclear power plants. The volume of water intake is carried out according to the established limits for 1 calendar year. Water disposal is also carried out on the basis of permits regulating environmental activities. This work presents the total content of harmful chemicals in wastewater discharged into water bodies by operating nuclear power
plants on the territory of the Russian Federation, as well as the permissible amount of discharge established by regulations. The dynamics of changes in gross discharge are analyzed.
KEYWORDS: nuclear power plant, environmental safety, harmful chemicals, water bodies.