IRMO, South Carolina. Irmo, South Carolina, has a population of 11,223 and is located 10 miles northeast of Columbia, the capital of South Carolina. Chartered in 1890, the town was named for two officers of the local railroad whose names were Irdell and Mosley.
Either way--don't play with plutonium. The most toxic substance I could come up with is botulinum toxin--yes, the same material that is purified and injected (Botox) to remove wrinkles! When injected, the fatal dose is 1.3 to 2.1 nanograms per kilogram. So for an 80 kg adult, 104 to 168 nanograms (0.000168 mg).
Introduction. Botulinum toxin, also called âmiracle poison,â is one of the most poisonous biological substances known.[ 1 ] It is a neurotoxin produced by the bacterium Clostridium botulinum, an anaerobic, gram-positive, spore-forming rod commonly found on plants, in soil, water and the intestinal tracts of animals.