Ecotoxicology
The No Observed Adverse Effect Level (NOAEL) is the highest concentration or dose of a substance at which no significant negative effects are observed in test subjects during a study. This term is critical in assessing the safety of chemicals and their potential impacts on health and the environment, forming a foundational aspect of risk assessment and management. Understanding NOAEL helps in characterizing exposure and effects, thereby informing regulatory decisions regarding acceptable exposure limits.
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