Table 6.

Concentration of heavy metals in the Halda River water.

Concentration of Heavy Metals in Water
Element	Unit	S1	S2	S3	S4	S5	S6	S7
Co	(μg/L)	<5.0	90.0 ± 3.19	20.0 ± 0.71	10.0 ± 0.35	<5.0	<5.0	170.0 ± 6.02
Cd	(μg/L)	10.0 ± 0.36	80.0 ± 2.85	10.0 ± 0.36	10.0 ± 0.36	<1.0	<1.0	<1.0
Cr	(μg/L)	130.0 ± 4.72	50.0 ± 1.82	40.0 ± 1.45	80.0 ± 2.90	40.0 ± 1.45	50.0 ± 1.82	120.0 ± 4.36
Fe	(μg/L)	424.0 ± 67.59	311.0 ± 49.57	346.0 ± 55.16	398.0 ± 63.44	383.0 ± 61.05	457.0 ± 72.85	459.0 ± 73.16
Mn	(μg/L)	610.0 ± 4.81	440.0 ± 3.47	785.0 ± 61.94	295.0 ± 23.28	325.0 ± 25.64	385.0 ± 30.38	1185.0 ± 93.50
Pb	(μg/L)	2200.0 ± 78.98	1700.0 ± 61.03	900.0 ± 32.31	700.0 ± 25.13	700.0 ± 25.13	1400.0 ± 50.26	1000.0 ± 35.9
Ca	(mg/L)	3.61 ± 0.86	3.83 ± 0.71	4.32 ± 0.32	3.92 ± 0.62	3.97 ± 0.97	4.06 ± 0.6	3.99 ± 0.98
Cu	(mg/L)	25.54 ± 1.12	341.83 ± 15.01	387.70 ± 17.02	17.06 ± 7.49	204.70 ± 18.98	138.92 ± 6.09	575.39 ± 25.26
Zn	(μg/L)	940.8 ± 27.48	446.0 ± 60.43	803.0 ± 19	423.6 ± 37.40	583.6 ± 79.08	528.0 ± 71.54	575.2 ± 77.94
Hg	(μg/L)	<0.3	<0.3	<0.3	<0.3	<0.3	<0.3	<0.3
As	(μg/L)	12.0 ± 0.99	<2	30.0 ± 2.99	8.0 ± 0.77	4.0 ± 0.7	8.0 ± 0.65	2.0 ± 0.1
Element	Unit	S8	S9	S10	S11	S12	Average	Standard (WHO)
Co	(μg/L)	<5.0	<5.0	60.0 ± 2.12	<5.0	<5.0	21.7	-
Cd	(μg/L)	<1.0	30.0 ± 1.07	<1.0	<1.0	10.0 ± 0.36	12.5	3
Cr	(μg/L)	140.0 ± 5.08	110.0 ± 3.99	30.0 ± 1.09	60.0 ± 2.18	<11.0	70.8	50
Fe	(μg/L)	481.0 ± 76.67	318.0 ± 50.69	380.0 ± 60.57	436.0 ± 69.49	494.0 ± 78.74	407.3	300
Mn	(μg/L)	450.0 ± 35.51	335.0 ± 26.43	175.0 ± 13.81	430.0 ± 33.93	220.0 ± 17.36	469.5	500
Pb	(μg/L)	1500.0 ± 53.85	2600.0 ± 93.34	700.0 ± 25.13	1000.0 ± 35.9	1000.0 ± 35.9	1283.3	10
Ca	(mg/L)	3.98 ± 0.21	3.59 ± 0.12	3.95 ± 0.21	4.63 ± 0.32	5.03 ± 0.42	4.07	-
Cu	(mg/L)	377.86 ± 16.59	41.75 ± 8.33	298.27 ± 10.09	352.80 ± 15.49	237.83 ± 10.44	294.076	2.00
Zn	(μg/L)	398.8 ± 54.08	389.8 ± 52.82	491.6 ± 66.61	519.2 ± 70.35	492.8 ± 66.77	549.4	3000
Hg	(μg/L)	<0.3	<0.3	<0.3	<0.3	<0.3	<0.3	1
As	(μg/L)	170.0 ± 1.7	126.0 ± 12	82.0 ± 8	132.0 ± 11.09	136.0 ± 13	60.0	10