Median Effective Concentration

{
  "id": "MLC-T-ENV-016875",
  "term": "Median Effective Concentration",
  "field": "Environment",
  "definition": "1. The concentration of a substance to which test organisms are exposed that is estimated to be effective in producing some sublethal response in 50 percent of the test population. The EC50 usually is expressed as a time-dependent value (e.g., 24-hour EC50). The sublethal response elicited from the test organisms as a result of exposure must be clearly defined.\n\n2. A statistically or graphically estimated concentration that is expected to cause one or more specified effects in 50% of a group of organisms under specified conditions. (Pertains to ecological assessments)",
  "abbreviation": "EC50",
  "subject": "Land, waste and cleanup",
  "references": [
    "Waste and Cleanup Risk Assessment Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/median-effective-concentration/"
}