Thorium (Th-232)
Treatment:
No FDA-approved countermeasures
For NCRP suggestions, see REMM online
http://www.remm.nlm.gov/int_contamination.htm
Ionizing radiation decay mode:
α
Radioactive half-life:
14 billion years
Biological half-life:
Liver/total body: 700 days
Bone: 8,030 days
Major exposure pathways:
Inhalation
Ingestion
Focal accumulation:
Bone