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Biological Toxins   

If a chemical or product is considered toxic, this does not mean it is a biological toxin. Only toxins that are produced by microorganisms, animals, and plants are considered biological toxins. For a list of biological toxins and corresponding LD50 values, see the University of Florida’s EH&S webpage (

Biological Toxins - Select Agent

To learn which biological agents and toxins are considered select agents, visit the following website:

Some strains or forms of the agents and toxins are excluded from the select agent regulations:

Select agent biological toxins are exempt from the select agent regulations if the total quantity under the control a PI falls below a certain threshold:

Biological Toxins - Select Agent Inventory

Please contact the Office of Biological Safety, regarding inventory and storage regulations of sub-threshold amounts.  Also, please add procedures for reporting of inventory to the Office of Biological Safety (263-2037,


Still have questions? Call the Office of Biological Safety (OBS) at 608-263-2037. We are happy to assist you.

Keywords:toxic, biological toxins, select agent   Doc ID:43082
Owner:Tara S.Group:ARROW - Institutional Biosafety Committee
Created:2014-08-21 15:57 CDTUpdated:2023-03-07 07:01 CDT
Sites:ARROW - Institutional Biosafety Committee
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