Elemental Compositions and Chemical Mass Closure of Fine Particulate in an Animal Feeding Operation Facility and Its Vicinity
作者： Qian-Feng Li , Lingjuan Wang-Li , R. K. M. Jayanty , Sanjay Shah
关键词:
摘要: Particulate matter (PM) emissions from animal feeding operations (AFOs) have been considered as an important contributor to ambient PM in rural areas. Investigation of the chemical compositions PM2.5 inside and vicinity AFOs can enhance our understanding AFO impact on characteristics. This year-long field study was conducted a commercial egg production farm investigate impacted by air houses. The samples were collected five sampling stations (one in-house station four locations wind directions). trace elements, major ions, organic carbon (OC) element (EC) analyzed X-ray florescence (XRF), ion chromatography (IC), thermo-optical analyzer, respectively. There significant differences elemental between (ST1) (ST2-ST5). mass balance analysis revealed that OC accounted for above 50% at stations; NH4+, SO42-, NO3- about 40.0% total only 12% house. measured masses agreed with sums all except station. Knowledge gained this study, additional consideration NH3 concentrations emissions, will lead better source formation, fate transport, their atmospheric dynamics.
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