An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Benchmark Dose Tools

Other Benchmark Dose Models & Tools

The BMDS 3.0 User Guide contains detailed information on the BMDS models, including their formulae, parameters, special options, and benchmark doseHelpbenchmark doseAn exposure due to a dose of a substance associated with a specified low incidence of risk, generally in the range of 1% to 10%, of a health effect; or the dose associated with a specified measure or change of a biological effect. (BMD) and BMDLHelpBMDLA statistical lower confidence limit on the dose or concentration at the BMD or BMC, respectively. computations. 

This page links to more extensive technical background documents or technical guidance for specialized models that may not  be included in the BMDS documentation.