The Law Dictionary

Featuring Black’s Law Dictionary Free Online Legal Dictionary 2nd Ed.

What is NO OBSERVABLE ADVERSE EFFECT LEVEL (NOAEL)

Named tolerance level over a human’s lifetime exposure, averaged as 70 years, in the human diet. From long-term toxicological studies, pesticide or other agricultural chemical’s impact is established. Also known as no observable effect level (NOEL) or no observed effect level.

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