AAAR 31st Annual Conference
October 8-12, 2012
Hyatt Regency Minneapolis
Minneapolis, Minnesota, USA
Abstract View
Characterizing Carbonaceous Materials Emitted from Animal Feeding Operations
STEVEN TRABUE, Kenwood Scoggin, Laura McConnell, Ronaldo Maghirang, Alam Hasson, Segun Ogunjemiyo, USDA-ARS
Abstract Number: 448 Working Group: Source Apportionment
Abstract Studies on emission of coarse particles from animal feeding operation show that are dominated by carbonaceous materials and they are thought to be a major source for the transport of odorous material. However, few studies have characterized/quantified carbonaceous material. In this study, TSP, PM10 and PM2.5 from several different animal feeding operations (AFOs) were analyzed for VOC profiles at control, source and downwind locations (50-400 m). The types of operations monitored included both cattle and dairy feedlots, and swine operations. Sample were analyzed by thermal desorption GC-MS (TD-GC/MS) technique. The VOC compounds assoicated with PM from AFO were oxgenated and dominated by n-alkanoic acids with C16 and C18 as the most abundant compounds. Other compound classes included alcohols, carbonyls, ketones, phenols, and several multi-functional group compounds. The VOC profiles for each PM size fraction were similar for each production/animal facility. The types of production facility did influcence the VOC profile for PM. We will discuss differences between various AFO as well as the change in VOC profile of samples taken at source and downwind locations.