A reference dose is the United States Environmental Protection Agency's maximum acceptable oral dose of a toxic substance. Reference doses are most commonly determined for pesticides. The EPA defines an oral reference dose (abbreviated RfD) as:
n estimate, with uncertainty spanning perhaps an order of magnitude, of a daily oral exposure to the human population (including sensitive subgroups) that is likely to be without an appreciable risk of deleterious effects during a lifetime.
Read more about Reference Dose: Regulatory Status, Types, Determination, Example, Consensus
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