Occupational exposure limit

{
  "id": "MLC-T-CHM-008184",
  "term": "Occupational exposure limit",
  "field": "Chemistry",
  "definition": "A regulatory threshold for the concentration of a substance in the air of a workplace, established to protect worker health. Exposure is measured in the breathing zone of an employee and is averaged over a specified period. These limits are set by government agencies or professional organizations and are expressed as a time-weighted average (TWA) over an 8-hour workday, a short-term exposure limit (STEL), or a ceiling value.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2007, 79, 1153. 'Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)' on page 1273 (https://doi.org/10.1351/pac200779071153)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/occupational-exposure-limit/"
}