Measurement of nitrous oxide concentrations from Wisconsin dairy barns

Neslihan Akdeniz, Larry D. Jacobson, Brian P. Hetchler, Rodney T. Venterea, Kurt A. Spokas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nitrous oxide (N2O) is one of the important greenhouse gases. N2O emissions from anthropogenic sources are approximately 7-8 million tones N/yr worldwide and 70% of these emissions are caused by crop and animal production. In this study, direct N2O production from dairy cattle (enteric fermentation) and feces/urine temporarily stored in two freestall dairy barns were measured with 1) photoacoustic infra-red gas analyzer I (analyzer I, Innova 1412), 2) infra-red gas analyzer II (analyzer II: Teledyne API 320E), 3) GC-ECD (gas chromatography-electron capture detector),and 4) GC-MS (gas chromatography-mass spectroscopy). N2O concentrations in the exhaust air from the two barns ranged from 310 ppb to 371 ppb. No significant difference was found between GC-ECD and GC-MS N2O results. Analyzer II's response was not sensitive enough for the near ambient N2O concentrations found from the two dairy barns. Significant differences were found between GC-ECD and analyzer I N2O measurements. These differences may be caused due to interferences between N2O and CO2 and water vapor.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009
Pages4483-4488
Number of pages6
StatePublished - Dec 1 2009
Externally publishedYes
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009 - Reno, NV, United States
Duration: Jun 21 2009Jun 24 2009

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009
Volume7

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009
CountryUnited States
CityReno, NV
Period6/21/096/24/09

Keywords

  • Dairy barn
  • GC-ECD
  • GC-MS
  • Infra-red gas analyzer
  • Nitrous oxide

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

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  • Cite this

    Akdeniz, N., Jacobson, L. D., Hetchler, B. P., Venterea, R. T., & Spokas, K. A. (2009). Measurement of nitrous oxide concentrations from Wisconsin dairy barns. In American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009 (pp. 4483-4488). (American Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009; Vol. 7).