Continuous emission monitoring

{
  "id": "MLC-T-ENV-006439",
  "term": "Continuous emission monitoring",
  "field": "Environment",
  "term_source": "Continuous Emission Monitoring",
  "definition": "CEM is the continuous measurement of pollutants emitted into the atmosphere in exhaust gases from combustion or industrial processes. EPA has established requirements for the continuous monitoring of SO2, volumetric flow, NOx, diluent gas, and opacity for units regulated under the Acid Rain Program. In addition, procedures for monitoring or estimating carbon dioxide (CO2) are specified.",
  "abbreviation": "CEM",
  "subject": "Environmental technologies",
  "references": [
    "EPA Continuous Emissions Monitoring Fact Sheet at http://www.epa.gov/airmarkets/emissions/continuous-factsheet.html"
  ],
  "url": "https://mlchart.com/terminology/environment/continuous-emission-monitoring/"
}