BMC Chemistry

Table 3 Total content of metals and the leached fraction of metals and ions by water

From: Characterization and assessment of potential environmental risk of tailings stored in seven impoundments in the Aries river basin, Western Romania

Parameter	Impoundment
	Saliste		Gura Rosiei		Stefanca		Sesei		Cutii		Sartas		Brazesti
	Total	Leached	Total	Leached	Total	Leached	Total	Leached	Total	Leached	Total	Leached	Total	Leached
	mg kg^-1
Al	1810	10.1	2670	2.25	15600	17.6	13000	4.25	1530	77.6	5580	217	3080	2.27
Fe	9350	10.4	4650	1.1	13300	0.06	15700	2.2	15800	403	15600	110	13800	0.06
Mn	55.0	1.7	83.0	0.93	482	0.03	589	0.15	84.0	13.6	285	75.0	420	0.11
Ba	103	0.06	47.5	0.07	120	0.27	144	0.240	64.2	0.120	114	0.160	72.1	0.090
Zn	185	4.6	46.0	0.60	115	0.08	109	0.520	204	14.2	401	45.2	330	0.160
Pb	117	0.049	115	0.051	25.4	0.009	31.3	0.080	528	0.520	649	0.540	551	0.043
Cu	15.9	0.563	4.8	0.094	579	0.037	850	0.355	107	4.89	133	9.19	65.7	0.021
Ni	2.0	0.165	1.0	0.044	3.4	0.05	1.8	0.044	1.8	0.48	11.6	1.57	5.2	0.059
Cr	2.5	0.166	1.0	0.021	4.1	0.015	3.4	0.057	2.4	0.283	9.8	0.300	4.3	0.050
As	101	0.031	50.8	0.034	5.5	0.021	7.4	0.137	483	0.560	575	0.530	655	0.600
Cd	0.60	0.050	0.10	0.012	0.20	0.01	0.40	0.013	0.40	0.080	1.5	0.351	1.6	0.010
Co	0.30	0.023	0.10	0,011	6.2	0.001	10.2	0.002	0.60	0.148	2.2	0.718	3.3	0.001
V	37.0	0.002 ^a	13.8	0.002	96.8	0.002	179	0.002	11.2	0.002	12.8	0.002	7.7	0.002
Ag	10.5	0.001	8.0	0.001	0.30	0.001	0.50	0.001	5.3	0.001	5.8	0.001	2.2	0.001
F-	-	1.8	-	0.15	-	2.4	-	1.4	-	11.0	-	13.0	-	0.80
Cl^-	-	9.3	-	5.3	-	25.0	-	0.400	-	17.0	-	9.3	-	3.4
SO₄^2-	-	700	-	46.4	-	1100	-	217	-	17000	-	17000	-	240
NO₃^-	-	0.15	-	0.8	-	1.9	-	0.15	-	0.15	-	0.15	-	0.15
NH₄⁺	-	3.5	-	5.5	-	3.5	-	4.2	-	6.2	-	5.2	-	2.7

^a half of the detection limit.

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