Integrated Nanozero Valent Iron and Biosurfactant-Aided Remediation of PCB-Contaminated Soil

Table 2

Soil particle size distribution determined by sieve analysis.

Particle	Diameter (mm)	Size distribution (%)
Gravel	>2.0	4.5
Sand	0.05–2.0	92.5
Silt	0.002–0.05	2.5
Clay	<0.002	0.5