Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Estimation of Particulate Matter and Ammonia Emission Factors for Mechanically-Ventilated Pig Houses

강제환기식 양돈시설의 암모니아 및 미세먼지 배출계수 산정

  • Park, Jinseon (Department of Rural and Bio-Systems Engineering & Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture, Chonnam National University) ;
  • Jeong, Hanna (Department of Rural and Bio-Systems Engineering & Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture, Chonnam National University) ;
  • Hong, Se-Woon (Department of Rural and Bio-Systems Engineering & Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture, Chonnam National University)
  • Received : 2020.10.08
  • Accepted : 2020.10.15
  • Published : 2020.11.30
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Abstract

Emission factors for ammonia and particulate matters (PMs) from livestock buildings are of increasing importance in view of the environmental protection. While the existing emission factors were determined based on the emission inventory of other countries, in situ measurement of emission factors is required to construct an accurate emission inventory for Korea. This study is to report measurements of ammonia and PMs emissions from mechanically-ventilated pig houses, which are common types of pig barns in Korea. Ventilation rates and concentrations of ammonia and PMs were measured at the ventilation outlets of a weaner unit, a growing pig unit and a fattening pig unit to calculated the emission factors. The PMs emission was characterized with different aerodynamic diameters (PM2.5, PM10, and total suspended particulates (TSP)). The measured ammonia emission factors for weaners, growing pigs and fattening pigs were 0.225, 0.869 and 1.679 kg animal-1 yr-1, respectively, showing linear increase with pigs' age. The PMs emission factors for three growing stages were 0.023, 0.237 and 0.241 kg animal-1 yr-1, respectively for TSP, 0.017, 0.072 and 0.223 kg animal-1 yr-1, respectively for PM10, and 0.011, 0.016 and 0.151 kg animal-1 yr-1, respectively for PM2.5. PMs emissions were increased with pigs' age due to increasing feed supply and animal movement. The measured emission factors were smaller than those of the existing emission inventory indicating that the existing ones overestimate the emissions from pig buildings and also suggesting that long-term in situ monitoring at various livestock buildings is required to construct the accurate emission inventory.

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References

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