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).
Botulism is a serious, potentially fatal illness caused by a type of poison. The poison â known as botulinum toxin â is produced by a kind of bacteria. Botulinum toxin is the strongest poison known to science. Botulism is always considered a medical emergency. It can cause death by paralyzing the muscles people use to breathe.