Ricin

Overview

Highlights

Ricin is a toxin that can be made from the waste left over from processing castor beans. It is one of the most toxic and easily produced plant toxins. If injected, as little as 500 micrograms of ricin could be enough to kill an adult; some animal research indicates that similar amounts could be lethal, if inhaled. A 500 microgram dose of ricin would be about the size of the head of a pin. Ricin has been used in the past as a bioterrorist weapon and remains a serious threat.

Standards

There are currently no specific OSHA standards for ricin.

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Hazard Recognition

Provides references that aid in recognizing disease characteristics and hazards associated with ricin.

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Additional Resources

Provides links and references to additional resources related to ricin.

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Highlights