Distribution and Identification of Sources of Heavy Metals in the Voghji River Basin Impacted by Mining Activities (Armenia)

Table 3

Arithmetic mean (AM) concentrations, standard deviation (SD), and variation coefficient (VC %) of heavy metals in waters of Voghji River and its tributaries during the period 2014–2016 (units are µg/L, except Fe and Mn for which units are mg/L; represents the number of data).

WS	BS	Fe	Mn	Ti	V	Cr	Co	Ni	Cu	Zn	As	Mo	Cd	Sb	Pb	Se
1; ()	AM	0.038	0.004	1.82	0.243	0.395	0.082	0.927	3.07	3.21	0.938	5.83	0.045	0.044	0.039	0.765
	SD	0.03	0.002	0.66	0.12	0.24	0.057	0.36	1.51	1.88	0.56	2.85	0.02	0.03	0.03	0.798
	VC	69	54	36	51	60	70	38	49	59	60	49	48	71	87	104
2; ()	AM	0.183	0.023	5.54	1.06	1.030	0.316	1.67	10.9	4.75	1.79	111.6	0.372	0.39	0.397	7.69
	SD	0.14	0.02	3.12	0.76	0.57	0.24	0.67	5.66	4.77	0.95	94.2	0.34	0.36	0.47	7.94
	VC	74	102	56	72	55	76	40	52	101	53	84	92	92	119	103
3; ()	AM	0.074	0.004	2.79	1.17	0.559	0.157	1.07	5.62	1.59	1.94	46.3	0.153	0.33	0.463	1.38
	SD	0.05	0.00	2.05	0.42	0.29	0.12	0.46	2.14	1.25	0.77	17.5	0.07	0.19	0.56	1.09
	VC	68	62	74	36	51	73	43	38	78	40	38	46	59	121	79.0
4; ()	AM	0.376	0.181	3.95	1.36	0.677	2.57	2.92	82.5	105.5	1.51	64.2	1.18	0.778	0.329	1.81
	SD	0.189	0.137	2.38	0.875	0.436	1.95	2.00	51.3	84.6	0.818	65.1	0.779	0.851	0.238	1.36
	VC	50	76	60	64	64	76	68	62	80	54	101	66	109	72	75.3
5; ()	AM	0.110	0.003	4.14	4.61	0.716	0.227	1.28	1.28	0.94	0.688	1.19	0.009	0.116	0.099	0.728
	SD	0.078	0.00	1.98	1.62	0.50	0.10	0.56	0.44	0.67	0.19	0.48	0.01	0.07	0.10	1.14
	VC	71	56	48	35	69	44	44	34	72	27	40	59	61	100	157
6; ()	AM	0.236	0.178	6.18	6.90	0.790	0.720	2.150	11.5	82.1	4.59	400.5	1.891	5.87	0.522	4.25
	SD	0.21	0.14	4.68	5.80	0.70	0.51	1.22	7.79	50.4	2.29	217.5	0.78	3.43	0.47	2.57
	VC	88	77	76	84	57	70	57	68	61	50	54	41	58	90	60.6
7; ()	AM	0.075	0.005	2.12	0.647	0.297	0.126	0.805	1.51	1.39	0.616	7.15	0.036	0.084	0.048	1.57
	SD	0.06	0.01	1.21	0.32	0.25	0.06	0.37	0.47	1.05	0.46	2.95	0.02	0.05	0.04	2.08
	VC	85	99	57	49	86	44	46	31	75	75	41	42	58	93	132
8; ()	AM	0.077	0.011	2.76	0.840	0.503	0.150	1.025	3.23	2.35	1.14	15.3	0.057	0.166	0.114	1.71
	SD	0.07	0.01	2.40	0.35	0.46	0.07	0.53	1.75	1.79	0.61	12.2	0.04	0.12	0.15	2.09
	VC	86	59	87	42	92	47	52	54	76	53	79	63	69	129	122