Iodine (I-131)

Treatment:
Potassium iodide (FDA approved for this indication)
For NCRP suggestions, see REMM online
http://www.remm.nlm.gov/int_contamination.htm

Ionizing radiation decay mode:
β, γ

Radioactive half-life:
8.1 days

Biological half-life:
138 days

Major exposure pathways:
Inhalation
Ingestion
Skin

Focal accumulation:
Thyroid