Biological information
Biological role
Here are a few notes about the biological role of astatine. Astatine has no biological role.
Hazards and Risks
Here are a few notes about the hazards and risks associated with astatine. Astatine does not occur to any significant extent in the biosphere and so normally never presents a risk. Astatine is studied in a few nuclear research laboratories where its high radioactivity requires special handling techniques and precautions. From a chemical point of view one, can speculate that its toxicity would mimic that of iodine. | 
