Evaluation of non-enteric sources of non-methane volatile organic compound (NMVOC) emissions from dairies
| Autor: | Myeong Y. Chung, Alam S. Hasson, Shawn Ashkan, Matt Beene, Charles Krauter |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Atmospheric Science Chemistry Silage Air pollution Mass spectrometry medicine.disease_cause Methane law.invention chemistry.chemical_compound law Environmental chemistry medicine Flame ionization detector Volatile organic compound Gas chromatography Air quality index General Environmental Science |
| Zdroj: | Atmospheric Environment. 44:786-794 |
| ISSN: | 1352-2310 |
| DOI: | 10.1016/j.atmosenv.2009.11.033 |
| Popis: | Dairies are believed to be a major source of volatile organic compounds (VOC) in Central California, but few studies have characterized VOC emissions from these facilities. In this work, samples were collected from six sources of VOCs (Silage, Total Mixed Rations, Lagoons, Flushing Lanes, Open Lots and Bedding) at six dairies in Central California during 2006–2007 using emission isolation flux chambers and polished stainless steel canisters. Samples were analyzed by gas chromatography/mass spectrometry and gas chromatography/flame ionization detection. Forty-eight VOCs were identified and quantified in the samples, including alcohols, carbonyls, alkanes and aromatics. Silage and Total Mixed Rations are the dominant sources of VOCs tested, with ethanol as the major VOC present. Emissions from the remaining sources are two to three orders of magnitude smaller, with carbonyls and aromatics as the main components. The data suggest that animal feed rather than animal waste are the main source of non-enteric VOC emissions from dairies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect