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CH3041
ORGANIC TOXINS
• Plants: the castor oil plant contains ricin,
a small protein   1 protein  Þ 1 dead cell.
 - as used by the Bulgarian secret police.
• Animals: puffer fish contain tetrodotoxin, nerve poison - LD50 10mg/kg  Japanese eat after preparatn , a few fatal errors reported.
• Fungal: aflatoxin Asperigillus flavus toxin
in 1960 Turkey X disease killed 103s of birds.
>1ppb causes liver cancers.
• Industrial : PCBs, PAHs, pesticides, dioxin.
• Food additives : Paracelsus 1538
‘What is it that is not a poison? Only the dose  
  decides that a thing is not poisonous’.