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Ammonia emissions from a U.S. broiler house--comparison of concurrent measurements using three different technologies
Citation:
Casey, K. D., R. S. Gates, R. C. SHORES, E. D. THOMA, AND B. HARRIS. Ammonia emissions from a U.S. broiler house--comparison of concurrent measurements using three different technologies. JOURNAL OF AIR AND WASTE MANAGEMENT. Air & Waste Management Association, Pittsburgh, PA, 60(8):939-948, (2010).
Impact/Purpose:
journal article
Description:
There is a need for robust and accurate techniques for the measurement of ammonia (NH3) and other atmospheric pollutant emissions from poultry production facilities. Reasonable estimates of ammonia emission rate (ER) from poultry facilities are needed to guide discussions about the industry's impact on local and regional air quality. The design of these facilities features numerous emission points and results in emission characteristics of relatively low concentrations and exhaust flow rates that vary diurnally, seasonally and with bird age over a considerable range. These factors combine to render conventional emissions monitoring approaches difficult to apply. The three objectives of this study were; (1) to compare three methods for measuring exhaust ammonia concentrations, and thus emission rates, (2) to compare ventilation rates using in-situ measured fan characteristics vs. using manufacturer sourced fan curves, and (3) to examine limitations of the alternative measurement technologies. In this study, two open-path monitoring systems operating outside the buildings were compared with a portable monitoring system sampling upstream of a primary exhaust fan. The open-path measurement systems showed promise for being able to obtain ER measurements with minimal access to the.
