Rotenone acts as a contact and stomach poison that may be absorbed by ingestion or inhalation. Inhaling large doses of Rotenone can cause increased respiration, depression and convulsions, while digesting Rotenone can give you effects such as mild irration and vomiting. The inhaltion toxicity of it is determined by the particle size of powdered rotenone. Being exposed to powdered Rotenone containing plant materials in an occupational environment has been proven to induce dermantitis, ulcers in the nose, and irritation of mucous membrane. Acute toxic effects on the human body include dermatitis, sore throat, congestion and conjunctivitis, and chronic exposure may produce changes in kidneys and liver (discovered through animal testing). The results of contact with Rotenone explain why Rotenone is and can be dangerous.
How dangerous is Rotenone?
The oral lethal does of Rotenone is 300-500mg/kg, but people rarely die from it because it is sold in such low concentrations. Yet, Rotenone has the potential to be very dangerous if consumed or applied incorrectly. It is a toxin that can poison humans, wildlife and insects and is extremely toxic to fish. Crops that have been sprayed by Rotenone must be avoided for the following 12 hours, and can be harvested one day later, and fish killed with Rotenone may not be eaten, period (according to the regulations of the U.S.A. Food and Drug administration).
An example of the potential danger posed by Rotenone is when a water source in California, that fed 2300 people, was doused with Rotenone to kill an unwanted fish species, but the pesticide killed all of the fish in the lake. This resulted in the contamination of the seven mile lake for the following six months.
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