Bulletin of the National Research Centre

Table 1 Descriptive statistical analysis of the studied soil data

From: Multivariate statistics and contamination factor to identify trace elements pollution in soil around Gerga City, Egypt

Soil parameters	Min	Max	Mean	Std. deviation	Std. error	CV%
Sand%	60.0	76.7	68.8	4.9	1.2	7.2
Silt%	8.0	16.0	12.4	2.6	0.6	20.6
Clay%	15.2	23.9	18.9	2.6	0.65	13.8
pH	8.1	8.8	8.5	0.23	0.06	2.7
CaCO₃%	1.3	5.4	2.8	2.5	0.3	41.5
OM%	1.2	3.0	2.1	0.6	0.2	29.0
P%	0.1	0.9	0.3	0.2	0.1	92.7
Co (ppm)	0.01	28.1	12.6	10.5	2.6	82.9
Ni (ppm)	0.01	81.2	46.8	24.8.8	6.2	52.9
Pb (ppm)	0.001	29.2	11.9	11.0	2.8	92.2
Mn (ppm)	685.0	1317.0	990.6	153.0	38.2	15.4

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