Ammonia Emissions from U.S. Poultry Houses: Part II—Layer Houses

Date
2003-10-01
Authors
Gates, Richard
Liang, Yi
Xin, Hongwei
Tanaka, Akihiro
Xin, Hongwei
Lee, S.
Li, Hong
Wheeler, Eileen
Gates, Richard
Zajaczkowski, Jennifer
Topper, Patrick
Casey, Kenneth
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Agricultural and Biosystems Engineering
Abstract

An ongoing project of monitoring ammonia (NH 3 ) emissions from U.S. layer houses with two different housing and management schemes is reported in this paper. Ammonia and carbon dioxide concentration levels were collected bi-weekly from each house with portable monitoring units (PMUs). There existed substantial seasonal variations in NH 3 emission from the layer houses. Specifically, daily mean NH 3 concentrations ranged from 1 to 7 ppm in the manure belt house and from 9 to 108 ppm in the high-rise house. The NH 3 emission rates averaged 6 mg/hr-hen or 44 g/d-500kg over a 12-month monitoring period (February 2002 – March 2003) for the manure belt house and 44 mg/h-hen or 331 g/d-500kg over a 10-month monitoring period (February – November 2002) for the high-rise house. Ammonia emission rates are higher in summer than in winter, although NH 3 concentration may be much lower in summer.

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This proceeding is from Pp. 147-158 in Air Pollution from Agricultural Operations III, Conference Proceedings, 12-15 October 2003 (Raleigh, North Carolina, USA), ed. Robert Burns,12 October 2003. ASAE Pub #701P1403.

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