The Distribution between the Dissolved and the Particulate Forms of 49 Metals across the Tigris River, Baghdad, Iraq

Table 2

Total toxic metals concentrations (mean) ± uncertainties with partitioning coefficients for Tigris and Diyala Rivers.

Element	Tigris		Diyala
	Total conc. μg/L	𝐾𝑝 , L/Kg	Total conc. μg/L	𝐾𝑝 , L/Kg
	(Mean) ± uncertainty	(Mean * 10^6)	(Mean) ± uncertainty	(Mean * 10^3)
	𝑛=17	𝑛=17	𝑛=2	𝑛=2
Aluminum (Al)	902±139	13.3	2,700±61	618
Antimony (Sb)	0.136±0.032	1.2	0.41±0.02	7.92
Arsenic (As)	1.35±0.86	1.24	2.66±0.41	1.98
Barium (Ba)	50.4±2.9	1.59	63.4±0.9	0.652
Boron (B)	98.7±3.6	1.14	561±5	0.774
Cadmium (Cd)	0.024±0.018	2.03	0.112±0.009	16.1
Chromium (Cr)	3.67±4.24	4.65	9.3±0.2	102
Copper (Cu)	2.11±0.45	2.11	7.39±0.39	326
Iron (Fe)	835±85	15.2	3,130±107	299
Lead (Pb)	0.479±0.043	4.49	8.7±0.1	357
Manganese (Mn)	27.9±2.2	4.17	190±3	1.68
Molybdenum (Mo)	3.48±0.26	1.11	10.5±0.3	14.0
Nickel (Ni)	5.11±0.94	3.1	13.7±0.5	20.7
Silver (Ag)	0.009±0.009	0.439	0.14±0.01	725
Strontium (Sr)	822±49	1.12	2,570±47	ND
Thallium (Tl)	0.016±0.006	1.71	0.015±0.003	104
Tin (Sn)	0.092±0.033	0.191	0.287±0.025	10.8
Uranium (U)	0.885±0.043	1.63	2.8±0.02	2.26
Zinc (Zn)	2.78±0.93	346	42.9±0.7	139

ND: not determined.