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Table 4 Summary statistics of Igeo, 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
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