Non-Radiation Effects

Environment Condition in March, 2021

2021-04-08

# 3

According to the researches, the water level in the Goryn River (above the Baltic Sea level) fluctuated within a month from 192.73 m to 192.71 m in February 2021 (the minimum value is 192.57 m; the maximum value is 192.93 m; the average is 192.69 m).

In March 2021, the temperature of water in the Goryn River varied from 0.9°С to 6.8°С during the month (minimum value is 0.9; maximum value is 6.8; average is 2.8):

In March 2021, the water flow in the Goryn River changed from 8.88 to 15.70  m3/s during the month  (the minimum value was 8.88; the maximum value was 22.10; the average was 16.20):

Note: The calculation  of the flow rate in the Goryn River includes the coefficient taking into account the presence of algae (the calculation is performed according to the appropriate method).

The total flow of the Goryn River amounted to 43.4 million m3 in March 2021 (March 2020 - 15.7 million m3) .

The water level of the reservoir-cooler (at the design level of 203.0 m above the Baltic Sea level)  varied from 202.43 to 202.63 meters during the month in March 2021 (the minimum value is 202.43, the maximum value is 202.63, the average - 202.53):

The mirror area of the cooling pond was 19.459 km2, the volume of water was 110.263 million m3 at the end of the month.

In March 2021, the temperature of the water in the cooling pond varied from 8.2°C to 14.2°C during the month (minimum value is 3.7, maximum value is 14.2, average - 8.0):

The chemical analysis data of water quality in the reservoir-cooler (the pump station of auxiliary water) and in the Goryn River (near the Old Mill, Netishyn) were as follows in March:

Indicator
Cooling pond
Goryn River
MAC*
Solidity general, mg-equv/dm3
5.47.3 -
Calcium (Са2+), mg/dm376.15
118.24
 180
Magnesium (Mg2+), mg/dm3
19.44
17.01 40
Sodium (Na+), mg/dm3
79.014.0120
 Potassium (K+), mg/dm3
10.94.7
 50
 Bicarbonates (HCO3-), mg/dm3
305.0
372.1 -
Carbonates (CO32-), mg/dm3
7.5
 0.0 -
Dry residues, mg/dm3
523
456 1000
Sulfates (SO42-), mg/dm3
124.5
58.4
 100
Ammonium, (NH4+), mg/dm3
0.120.56 0.5
Nitrates (NO3-), mg/dm3
3.348.91
 40
Nitrites (NO2-), mg/dm3
0.023
0.036 0.08
Phosphates (PO43-), mg/dm3
0.41
0.19
 0.25
Oil products, mg/dm3
0.028** 0.05
Synthetic surfactants, mg/dm3
0.030.021 0.1
Iron, mg/dm3
< 0.1
0.127
 0.1
Permanganate oxidability, mgО/dm3
7.843.68 -
Dissolved oxide (O2), mg/dm313.4412.51
 >4

Notes: Standard MAC (maximum allowable concentration) is applied for water objects of industrial fishing (the Goryn River pertains to them) - «Rules of superficial water protection».

**the measuring instrument for the content of oil products is under maintenance at the manufacturer.

According to the data of chemical analysis results mentioned above, the water quality of the reservoir-cooler in March was better than the water quality in the Goryn River regarding some coefficients.

The main water balance components of Khmelnytskyi NPP cooling pond are listed in the table below:

Component 
 March 2021
March 2020
 WATER INPUT
 - Outflows from the Hnylyi Rih River, mln. m3
 4.105 0.826
 - Horyn River water pumped to KhhNPP cooling pond by the makeup water pumping station, mln. m3
 2.500
 1.265
 - Return water from the drainage line to KhhNPP cooling pond pumped by the leakage water pumping station, mln. m3
 1.764 1.639
 - Treated effluent water, mln. m3 0.333 0.286
 WATER OUTPUT
 - Return water to the Viliia River (Horyn River basin), mln.m3--

Over March, emission of pollutants into the atmosphere was in compliance with the limits established for stationary pollution sources. Thus, the pollutant emission standards were not exceeded. The generalized information on pollutants emission is given below in the table.

 Emission March 2021
 March 2020
Pollutants (without СО2), t
 2.847 2.772
СО2, t 0
 0

According to the data of ambient air composition research, the month maximum one-time concentration of oxide sulfur at the border of the protected sanitary area of KhNPP (in Neteshin) was <0.05 mg/m3 (<10.0 % from MAC), the maximum one-time concentration of oxide nitrogen was <0.020 mg/m3 (<10.0 % from MAC) in March.

Total precipitation was 41.2 mm during March. Based on the research of precipitation composition, pH value was 7.1 units.

The average month air temperature was «+1.7°С» (the maximum daily temperature was «+8.3°С», the minimum daily temperature was «-2.8°С»).