Bulletin of the National Research Centre

Table 4 Summary statistics of I_geo, CF, Er, DC, PLI, and PRI for the determined elements

From: Soil characterization and heavy metal pollution assessment in Orabi farms, El Obour, Egypt

Parameter	Single indices															Integrated indices
	I _geo					CF					Er					Integrated indices
	As	Cd	Cr	Cu	Pb	As	Cd	Cr	Cu	Pb	As	Cd	Cr	Cu	Pb	DC	PLI	PRI
Mean	4.28	1.48	− 0.9	− 3.3	− 1.6	29.5	4.6	0.8	0.2	0.5	295	139	1.6	0.8	2.6	35.6	1.52	438.5
Median	4.30	1.34	− 0.9	− 3.0	− 1.8	29.6	3.8	0.8	0.2	0.4	296	114	1.6	0.9	2.2	34.8	1.40	406.6
SD	0.21	0.58	0.4	0.6	0.5	4.3	3.0	0.2	0.1	0.2	43	89	0.4	0.3	0.9	6.6	0.33	118.8
Range	0.64	2.17	1.2	1.7	1.4	13.1	10.5	0.7	0.2	0.6	131	315	1.4	0.9	2.8	24.0	1.15	447.7
Min	3.97	1.00	− 1.5	− 4.2	− 2.1	23.5	3.0	0.5	0.1	0.3	235	90	1.1	0.4	1.7	28.0	1.25	330.1
Max	4.61	3.17	− 0.3	− 2.5	− 0.7	36.6	13.5	1.2	0.3	0.9	366	405	2.5	1.3	4.5	52.0	2.40	777.8
Q ₁	4.16	1.26	− 1.2	− 3.7	− 2.0	26.9	3.6	0.7	0.1	0.4	269	108	1.3	0.6	1.9	32.1	1.32	388.9
Q ₃	4.38	1.41	− 0.7	− 2.9	− 1.3	31.2	4.0	0.9	0.2	0.6	312	120	1.8	1.0	3.0	36.5	1.60	428.4

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