Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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On-site Test Methods of Tracer Gas Transmission for Cross-infection Risk Assessment in a Single Space and Between Rooms

추적가스를 이용한 단일공간 감염위험율 및 실간 교차감염 평가를 위한 현장 실험방법에 관한 연구

  • Cho, Jinkyun (Dept. of Building and Plant Engineering, Hanbat National University)
  • 조진균 (국립한밭대학교 설비공학과)
  • Received : 2022.07.25
  • Accepted : 2022.08.26
  • Published : 2022.09.30
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Abstract

In this study, a dilution-based evaluation and on-site measurement of cross-infection risk using tracer gas transmission was proposed. Since the existing Wells-Riley model does not obtain a spatial distribution of infection risk, it was difficult to make effective alternatives to prevent cross-infection in buildings. The newly proposed approach benchmarked and integrated the dilution ratio and the classic Wells-Riley model and tracer gas test method. Compared with the Wells-Riley model, there were two advantages: the evaluation of the infection risk by spatial location with continuous time interval, and the convenience of actual in-situ measurement. Even if the locations of the infector and health care workers were not fixed in the room, it could be used to determine the spatial distribution of the infection risk based on the calculation of the dilution ratio at the measurement point. The dilution ratio at sampling point was used to calculate the inhaled amount of airborne pathogens for which the infection risk was calculated. As for the on-site test method using tracer gas transmission, a framework and procedure that could evaluate the infection risk by location in a single space and cross-infection between rooms was presented. The amount of tracer gas dosed for the source of pollution or infector presented quantitative values of the breathing rate and AGMPs.

Keywords

Acknowledgement

본 연구는 2022년도 한국보건산업진흥원 연구비 지원에 의한 결과의 일부임 (과제번호: HG22C001700. 또한, 본 연구는 2022년도 국토교통과학기술진흥원 연구비 지원에 의한 결과의 일부임 (과제번호: 22TBIP-C161800-02).

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