Breathing zone

{
  "id": "MLC-T-CHM-001490",
  "term": "Breathing zone",
  "field": "Chemistry",
  "definition": "The atmospheric region immediately surrounding a person's nose and mouth, from which they inhale air. This zone is typically defined as a hemisphere with a radius of 30 centimeters extending in front of the face. Measurements of airborne contaminants within the breathing zone are used to assess an individual's exposure to hazardous substances.",
  "subject": "Chemistry and Human Health",
  "references": [
    "PAC, 2007, 79, 1153. 'Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)' on page 1183 (https://doi.org/10.1351/pac200779071153)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/breathing-zone/"
}