No-effect level

{
  "id": "MLC-T-CHM-007985",
  "term": "No-effect level",
  "field": "Chemistry",
  "definition": "The highest dose or concentration of a substance that does not produce any detectable adverse effect in a test system or organism. This level is established through experimental studies, typically in toxicology, to identify the threshold below which no harmful responses occur. It is a key parameter in determining safe exposure limits for chemicals.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2007, 79, 1153. 'Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)' on page 1271 (https://doi.org/10.1351/pac200779071153)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/no-effect-level/"
}