Optical open-path monitor

{
  "id": "MLC-T-ENV-019724",
  "term": "Optical open-path monitor",
  "field": "Environment",
  "term_source": "Optical Open-Path Monitor",
  "definition": "Used to evaluate emissions or ambient levels of volatile organic or inorganic chemicals. These monitors rely upon a radiation source and a detector used together to identify and quantify the levels of certain chemicals in the atmosphere.",
  "subject": "Environmental technologies",
  "references": [
    "EPA Environmental Technology Verification Program, Generic Verification Protocol for Optical Open-Path Monitors, prepared by Battelle for EPA at http://www.epa.gov/nrmrl"
  ],
  "url": "https://mlchart.com/terminology/environment/optical-open-path-monitor/"
}