Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:14:p4
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 14 (pt 4/4)
Character Range: 2005178–2006180

of contaminants. These can only be derived if normalisation relationships are available. Compare these to generic SQGs.
Speciation is the exact chemical form of contaminant in which an element occurs in a sample.
Statistically significant effects are effects (responses) in the exposed population which are different from those in the controls at a statistical probability level of p <0.05.

Steady state is the non-equilibrium state of a system in which matter flows in and out at equal rates so that all of the components remain at constant concentrations (dynamic equilibrium).
Watersoil partition coefficient (Kd) is the ratio of the concentration of a contaminant in soil pore water to that in the solid phase of soil at equilibrium. The units are L/kg. This contaminant property is affected by physicochemical properties of the contaminant and the soil.  This property is usually expressed as a logarithm (that is, log Kd). A chemical with log Kd <3 is considered to have the potential to leach.