Table 1.

Properties of the soils used in this investigation

SoilSoil textureParticle size distribution (%)Moisture content (%)pH (H2O)% C% NN-NO3 concn (μg/g)aN-NH4+concn (μg/g)aTPH concn (μg/g)b
SandSiltClay
AgriculturalLoam88012117.41.20.146.5<1.0NDc
PollutedLoam15632298.21.280.05<0.5<1.02,500–4,000
  • a Determined on a dry weight basis.

  • b The total petroleum hydrocarbon (TPH) content was determined on a dry weight basis by using infrared spectroscopy.

  • c ND, not detected.