[Retracted] Numerical Simulation Method for Microbial Remediation Effect of Nano Heavy Metal Contaminated Soil

Table 4

Basic data of soil samples.

	Sample 1	Sample 2	Sample 3
PH	7.3	7.02	6.31
Sand/%	69.9	80.3	77.9
Silt/%	18.9	15.4	15.9
Slay/%	11.2	4.3	6.2
Pb (mg/kg)	873	12.5	35.5
Cd (mg/kg)	6.5	4.1	0.45
Zn (mg/kg)	286.5	105.2	120.5
Cu (mg/kg)	75.3	21.3	—
Fe (mg/kg)	1.2	2.7	—
Mn (mg/kg)	0.14	—	—