Background Metals Database

Ian Mitchell, Millennium EMS Solutions Ltd.
GL 15-SGRC-02

A properly designed background metals and salinity database would provide a resource for determining appropriate background concentrations that reflect the soil type and geographic region of interest. This would better allow industry and consultants to determine whether metals/salinity concentrations above Tier 1 guidelines reflect natural conditions or contamination, and prevent unnecessary remediation of naturally occurring substances.

Policy Issue
Regulatory Guidelines/Directives/Policies/Criteria

Knowledge Gap

Inorganics (salinity, metals)

  • Natural salt distribution,
  • Fate and transport assessment
  • Appropriate protection of various exposure pathways,
  • SCARG criteria evaluation
  • Risk-based soil quality guidelines for selected trace metals
  • Knowledge on background concentrations of inorganics


Best Practice Report