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The Scientific Basis for Estimating Air Emissions from Animal Feeding Operations Interim Report (2002) / Chapter Skim
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Appendix B. Glossary
Pages 90-92

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From page 90...
... ACWF: America's Clean Water Foundation AER: Allowable emission rate AFO: Animal feeding operation Animal feeding operation: As defined by the U.S. Environmental Protection Agency (40 CFR 122.23~: a "lot or facility" where animals "have been, are, or will be stabled or confined and fed or maintained for a total of 45 days or more in any 12 month period and crops, vegetation, forage growth, or postharvest residues are not sustained in the normal growing season over any portion of the lot or facility." Animal unit: A unit of measure that is used to compare different animal species: 1.
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From page 91...
... km: kilometer, or 1,000 meters Lidar: A device similar to radar except that it emits pulsed laser light rather than microwaves LU: Live unit, 500 kg of body weight Manure: A mixture of animal feces and urine, that may also include litter or bedding materials MS: Mass spectrometer MT: Million tones ~m: micrometer (10~6m) ; micron N: Nitrogen N2: Dinitrogen molecule NAAQS: National Ambient Air Quality Standards NH3: Ammonia Vitrification: Oxidation of an ammonia compound to nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of nitrobacteria nm: nanometer; 10~9m NO: Nitric oxide NOx: Nitric oxide and nitrogen dioxide rapidly interconverted in the atmosphere NOy: The sum of all oxidized nitrogen species in the atmosphere N2O: Nitrous oxide NRC: National Research Council NRCS: National Resource Conservation Service Nutrient excretion factor: an estimate of an element, for example nitrogen, excreted by an animal usually reported as kg per day (or year)
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From page 92...
... . Volatile solids provide an approximation of moisture and organic matter present.
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Key Terms

  • mature dairy
  • swine weighing
  • veal cattle
  • organic matter
  • bedding materials

  • animal unit
  • device similar
  • animal usually
  • ammonia compound
  • animal weight

  • usually reported
  • feeding operation
  • month period
  • national ambient
  • nitrous acid

  • animal feces
  • nitrogen species
  • nitrogen dioxide
  • dioxide rapidly
  • emits pulsed

  • nitric oxide
  • oxidized nitrogen
  • pulsed laser
  • dairy cattle
  • live animal

  • rapidly interconverted
  • ambient air
  • nitric acid
  • volatile solids
  • cattle excluding


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