Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Relationship and Characteristics of PM10 and Endotoxin Concentrations in Windowless Poultry Houses in South Korea

일부 밀폐형 무창계사에서 발생하는 PM10 및 엔도톡신의 특성 및 연관성 분석

  • Kim, Hyocher (National Institute of Agricultural Science, Rural Development Administration) ;
  • Sin, Sojung (National Institute of Agricultural Science, Rural Development Administration) ;
  • Kim, Kyungsu (National Institute of Agricultural Science, Rural Development Administration) ;
  • Jung, Wongeon (National Institute of Agricultural Science, Rural Development Administration)
  • 김효철 (농촌진흥청 국립농업과학원) ;
  • 신소정 (농촌진흥청 국립농업과학원) ;
  • 김경수 (농촌진흥청 국립농업과학원) ;
  • 정원건 (농촌진흥청 국립농업과학원)
  • Received : 2021.07.30
  • Accepted : 2021.11.29
  • Published : 2021.12.30
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Abstract

Objectives: The aim of this study was to evaluate the concentrations and relationships of coarse particles with a diameter of 10 ㎛ (PM10) with endotoxins according to the time of measurement in windowless poultry houses. Methods: In this study, measurement was performed on ten windowless poultry houses with a vertically integrated system from July to November. PM10 was measured using personal environmental monitors and polytetrafluoroethylene (PTFE) filters with a 4 L/min-calibrated pump in selected sampling locations (two near the door and two near an exhaust fan). The endotoxin on PTFE filter was analyzed by the LAL turbidimetric method. Results: The range of geometric mean concentrations of PM10 and endotoxins for each of the 38 samples were 0.12-3.30 mg/m3 and 11.9-3553.66 EU/m3, respectively. PM10 and endotoxin concentrations varied by farm, increasing with the decrease in ventilation. The range of the coefficient of determination between PM10 and endotoxin was 0.0009-0.9249. As the atmospheric temperature decreased, it was confirmed that the concentrations of PM10 and endotoxin increased because the volume of ventilation was decreased. Conclusions: Endotoxins were more affected by time of measurement and ventilation than PM10, which means that endotoxins could be an important indicator for intervention programs for improvement of indoor environments.

Keywords

Acknowledgement

본 논문은 농촌진흥청 연구사업(세부과제번호: PJ01426901)의 지원에 의해 이루어진 것임

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