Table 4. Distribution of the Main Components of Natural Water Samples in Different Seasons of 2020/2021 (Monitoring Data).

	december 2020		june 2021		december 2021
parameter	Dniproa river water	artesianb drinking water	Dnipro river water	artesian drinking water	Dnipro river water	artesian drinking water
General Parametrs
pH	7.97	7.40	7.67	7.70	7.39	7.52
Dry residue, mg/L	2227	601	1688	531	2278	640
Water hardness total, mg-eqv/L	16.6	8.5	23.6	12.5	18.6	8.5
Alkalinity (total), mg-eqv/L	10.0	8.5	9.0	8.5	9.2	7.6
Main Cations and Anions (Macrocomponents)
Ca, mg/L	138.5	47.5	208.5	47.5	200.5	39.4
Mg, mg/L	64.4	19.5	70.4	19.5	69.6	19.5
K, mg/L	1.2	1.0	1.1	1.2	1.1	0.9
Na, mg/L	26.4	7.3	80.1	7.0	85.4	7.6
Cl–, mg/L	153	43.7	170	41.7	135	44.1
HCO32–, mg/L	193	470.7	200	463.7	177	488.1
SO42–, mg/L	182.4	126.6	250.4	116.2	341.4	122.4
F–, mg/L	0.60	0.30	0.40	0.35	0.49	0.15
Biogenic Elements
NO3–, mg/L	43.0	0.5	43.0	0.5	43.0	0.5
NO2–, mg/L	≤0.015	≤0.02	≤0.015	≤0.02	≤0.015	≤0.02
HPO42–, mg/L	0.28	0.05	0.12	0.06	0.19	0.05
Si, mg/L	8.2	7.5	8.5	8.4	13.2	8.0
Microcomponents***
Fe (total), mg/L	0.014	≤0.02	0.015	0.05	0.09	≤0.02
Mn (total), mg/L	0.013	0.002	0.04	0.003	0.018	0.004
Cu, mg/L	0.001	0.002	0.004	0.003	0.005	0.006
Zn, mg/L	0.06	0.01	0.06	0.01	0.07	0.005
Pb, mg/L	0.001	0.0001	0.001	0.0001	0.002	0.0001
Cd, mg/L	0.001	0.0004	0.0016	0.0002	0.0019	0.0003
Cr(total), mg/L	0.001	0.001	0.001	≤0.003	0.001	≤0.004
Organic Components
total organic carbon, mg/L	2.5	1.1	13.7	1.0	17.9	1.9

^aFootbridge (center Kyiv, Ukraine).

^bTaras Schevchenko Park (center Kyiv, Ukraine).