Summary and Model Validation of a Large Statistical Study of Airborne Pollutants in Australian Piggery Buildings

摘要: Between 1997 and 1999 we comprehensively surveyed airborne pollutant concentrations within, emissions from, 160 Australian piggery buildings. The characteristics of the buildings management systems used were documented to identify their contributions variations in emissions. primary aim was model different pollutants thus potential reduction techniques. models developed also validated using cross-validation technique. overall mean bacterial, endotoxin, ammonia (NH{3}), carbon dioxide, respirable inhale-able particle 1.17 10{5} cfu/m{3}, 33.1 EU/m{3} 3.7 ppm, 858 0.26 mg/m{3}, 1.74 respectively. high detected deep-bedded shelters could compromise health animals human workers. Overall, concentration NH{3} not a major concern. main effects identified as significantly influencing building type, pen hygiene, pig flow management, seasons, volume, ventilation airflow rate, air temperature, relative humidity, farm size (as expressed by number sows on site). Emission rates all affected ventilation-related parameters. study results resulting prediction will help develop strategies for industry improve quality environment, improving welfare pigs staff.