@article{james_blunden_rumsey_aneja_2012, title={Characterizing ammonia emissions from a commercial mechanically ventilated swine finishing facility and an anaerobic waste lagoon in North Carolina}, volume={3}, ISSN={["1309-1042"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84881622224&partnerID=MN8TOARS}, DOI={10.5094/apr.2012.031}, abstractNote={Abstract Emissions of atmospheric ammonia–nitrogen [NH 3 –N, where NH 3 –N = (14/17) NH 3 ] were measured from a commercial anaerobic swine waste treatment lagoon and from an on–site finishing swine confinement house at the same location. Continuous measurements were made at each potential NH 3 –N source for ~1 week during four different seasons. Results presented here represent measurements made for the second year of a multi–year experiment. Barn emissions were estimated to be 2 604 ± 660 g NH 3 –N day −1 , 1 761 ± 1 087 g NH 3 –N day −1 , 1 657 ± 1 506 g NH 3 –N day −1 , and 2 659 ± 1 194 g NH 3 –N g day −1 in summer, fall, winter, and spring respectively. NH 3 –N barn emission factors were calculated to be 1.32 ± 0.32 kg NH 3 –N animal −1 yr −1 , 0.78 ± 0.49 kg NH 3 –N animal −1 yr −1 , 1.55 ± 1.40 kg NH 3 –N animal −1 yr −1 , and 1.35 ± 0.61 kg NH 3 –N animal −1 yr −1 in summer, fall, winter, and spring respectively. Average NH 3 –N flux from lagoon was greatest in the summer, >3 943 μg m −2 min −1 , and lowest in the winter, 981 ± 210 μg m −2 min −1 . Fall and spring average NH 3 –N flux values were >1 383 μg m −2 min −1 and 1 641 ± 362 μg m −2 min −1 , respectively.}, number={3}, journal={ATMOSPHERIC POLLUTION RESEARCH}, author={James, Kristen M. and Blunden, Jessica and Rumsey, Ian C. and Aneja, Viney P.}, year={2012}, month={Jul}, pages={279–288} }
 @article{aneja_blunden_james_schlesinger_knighton_gilliam_jennings_niyogi_cole_2008, title={Ammonia assessment from agriculture: US status and needs}, volume={37}, ISSN={["1537-2537"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-40849136515&partnerID=MN8TOARS}, DOI={10.2134/jeq2007.0002in}, abstractNote={AbstractRecent studies suggest that human activities accelerate the production of reactive nitrogen on a global scale. Increased nitrogen emissions may lead to environmental impacts including photochemical air pollution, reduced visibility, changes in biodiversity, and stratospheric ozone depletion. In the last 50 yr, emissions of ammonia (NH3), which is the most abundant form of reduced reactive nitrogen in the atmosphere, have significantly increased as a result of intensive agricultural management and greater livestock production in many developed countries. These agricultural production practices are increasingly subject to governmental regulations intended to protect air resources. It is therefore important that an accurate and robust agricultural emission factors database exist to provide valid scientific support of these regulations. This paper highlights some of the recent work that was presented at the 2006 Workshop on Agricultural Air Quality in Washington, D.C. regarding NH3 emissions estimates and emission factors from agricultural sources in the U.S. and Europe. In addition, several best management practices are explored as the scientific community attempts to maximize the beneficial use of reactive nitrogen while simultaneously minimizing negative environmental impacts.}, number={2}, journal={JOURNAL OF ENVIRONMENTAL QUALITY}, author={Aneja, Viney P. and Blunden, Jessica and James, Kristen and Schlesinger, William H. and Knighton, Raymond and Gilliam, Wendell and Jennings, Greg and Niyogi, Dev and Cole, Shawn}, year={2008}, pages={515–520} }