Environmental Program

    Sources
  • Reprocessing
  • Fallout
  • Catastrophes
  • Soils
  • Sewage
  • Remediation
  • Decontamination
    and Decommissioning
  • Ocean Composites
Radionuclides
90Sr
129I
137Cs
Rn
Pu
etc.
    Molecular Species
    (designated by line color)
  • Exchangeables
  • Carbonates
  • Oxides
  • Organics
  • Silicates

Picture of Standards for Environmental Radioactivity: Radionuclides in the environment move through multiple pathways to man. These exposure pathways are monitored by a number of environmental and health based programs. NIST is providing environmental-level radioactivity Standard Reference Materials in separate matrices for investigators to evaluate and assure the efficacy of their radiochemical methodologies and measurements.