Identification of risk factors for sub-optimal housing conditions in Australian piggeries: part 4. Emission factors and study recommendations

Banhazi, T. M. and Rutley, D. L. and Pitchford, W. S. (2008) Identification of risk factors for sub-optimal housing conditions in Australian piggeries: part 4. Emission factors and study recommendations. Journal of Agricultural Safety and Health, 14 (1). pp. 53-69. ISSN 1074-7583

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The internal concentrations and emission rates of ammonia (NH3 ), total bacteria, respirable endotoxins, and inhalable and respirable particles were monitored in 160 piggery buildings in four states of Australia (Queensland, Victoria, Western Australia, and South Australia) between autumn 1997 and autumn 1999. Emissions were calculated for individual buildings as a product of internal concentration and ventilation rate, which were estimated by a carbon dioxide balance method. Relative humidity and temperature were also measured. The overall mean emission rates of NH3 , total bacteria, respirable endotoxins, inhalable
particles, and respirable particles per 500 kg live weight from Australian piggery buildings were 1442.5 mg h-1, 82.2 × 106 cfu h-1, 20.1× 103 EU h-1, 1306.7 mg h-1, and 254.7 mg h-1, respectively. Internal concentrations of key airborne pollutants have been reported in companion articles. Building characteristics and management systems used in the piggeries were documented at the time of sampling and used in the subsequent statistical modeling of
variations in pollutant emission rates. The emissions model used all statistically significant factors identified during prior modeling conducted for individual pollutant concentrations and ventilation airflow. The identification of highly significant factors affecting emission rates and internal concentrations should aid the development of strategies for the industry to reduce emission rates from individual buildings, thus improving the environmental
performance of piggery operations. In the second part of the article, specific recommendations are made based on the overall study results.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited in accordance with the copyright policy of the publisher (ASABE). Copyright 2008 ASABE ISSN 1074-7583.
Faculty/School / Institute/Centre: Current - USQ Other
Faculty/School / Institute/Centre: Current - USQ Other
Date Deposited: 05 Jun 2011 12:25
Last Modified: 29 Aug 2014 04:03
Uncontrolled Keywords: environmental survey; farm building; pigs; pollutant emission; risk factors
Fields of Research (2008): 07 Agricultural and Veterinary Sciences > 0702 Animal Production > 070205 Animal Protection (Pests and Pathogens)
09 Engineering > 0999 Other Engineering > 099901 Agricultural Engineering
05 Environmental Sciences > 0502 Environmental Science and Management > 050206 Environmental Monitoring
Fields of Research (2020): 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3003 Animal production > 300304 Animal protection (incl. pests and pathogens)
40 ENGINEERING > 4099 Other engineering > 409901 Agricultural engineering
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410404 Environmental management
Socio-Economic Objectives (2008): B Economic Development > 83 Animal Production and Animal Primary Products > 8303 Livestock Raising > 830308 Pigs

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