Aerosols Emitted from a Livestock Farm in Southern Germany
作者： Gerhard Lammel , Friedhelm Schneider , Erika Brüggemann , Thomas Gnauk , Andreas Röhrl
DOI: 10.1023/B:WATE.0000022962.65942.4B
关键词:
摘要: We studied the atmospheric aerosol of a farm directly on farm, downwind, and in background with aim to characterize source livestock farming physically chemically. The hosted chicken, cattle pig.The was found be primary secondary particles. Super-μm particles various types were emitted from stables adjacent facilities related activities. On elevated concentrations ammonia, particulate ammonium nitrate observed. significant emission condensation nuclei large, 2 μm-sized (droplets) observed under humid conditions plumes which most likely originated open manure pits at least one case. It is suggested that this mode consisted haze droplets formed by saturation advected air ammonia within few minutes. In night, mass uptake Δm > 5.4 μg m-3 super-μm along loss = —1.0 sub-μm based differential sampling upwind downwind farm. matter median diameter correspondingly shifted 1.32 3.39 μm. About third increase due organic carbon. Furthermore, showed calcium nitrate/nitric acid too. study encourages systematically raising future studies similar kind.
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