What Does NOEL Stand For?
NOEL stands for No Observed Effect Level
NOEL, or No Observed Effect Level, refers to the highest concentration or dose of a substance in toxicity testing at which no significant adverse effects are observed in the test subjects. It is a critical value used in risk assessment and regulatory evaluations to establish safety thresholds for chemicals and other substances, ensuring that exposure levels maintain a margin of safety for human health and the environment.
Added on 27th September 2008 | Last edited on 16th June 2025 | Edit Acronym