[논문]실내 공간에서의 호흡기 감염병 공기전파감염 위험도와 공기정화장치(필터 임배디드 기계식 환기설비 및 공기청정기 등 실내 감염원 저감 장치) 사용에 따른 효율

박성재; 박근영; 박대훈; 구현본; 황정호

doi:10.11629/jpaar.2020.16.4.073

실내 공간에서의 호흡기 감염병 공기전파감염 위험도와 공기정화장치(필터 임배디드 기계식 환기설비 및 공기청정기 등 실내 감염원 저감 장치) 사용에 따른 효율
Airborne infection risk of respiratory infectious diseases and effectiveness of using filter-embeded mechanical ventilator and infectious source reduction device such as air cleaner 원문보기

Particle and aerosol research = 한국입자에어로졸학회지, v.16 no.4, 2020년, pp.73 - 94

박성재 (연세대학교 기계공학과) , 박근영 (연세대학교 기계공학과) , 박대훈 (연세대학교 기계공학과) , 구현본 (한국건설기술연구원) , 황정호 (연세대학교 기계공학과)

Abstract ▼ AI-Helper

Particulate infectious sources, including infectious viruses, can float in the air, causing airborne infections. To prevent indoor airborne infection, dilution control by ventilation and indoor air cleaners are frequently used. In this study, the risk of airborne infection by the operation of these two techniques was evaluated. In case of dilution control by ventilation, a high efficiency air filter was embedded at the inlet of supply air. In this study, infectious source reduction devices such as indoor air cleaner include all kinds of mechanical-filters, UV-photo catalysts and air ionizers through which air flow is forced by fans. Two mathematical models for influenza virus were applied in an infant care room where infants and young children are active, and the risk reduction efficiency was compared. As a result, in the case of individually operating the ventilator or the infectious source reduction device, the airborne infection risk reduction efficiencies were 55.2~61.2% and 53.8~59.9%, respectively. When both facilities were operated, it was found that the risk of airborne infection was reduced about 72.2~76.8%. Therefore, simultaneous operation of ventilation equipment and infectious source reduction device is the most effective method for safe environment that minimizes the risk of airborne infection of respiratory infectious diseases. In the case of a space where sufficient ventilation operation is difficult, it was found that the operation of an infectious source reduction device is important to prevent the spread of infectious diseases. This study is meaningful in that it provides an academic basis for strategies for preventing airborne infection of respiratory infectious diseases.

주제어

표/그림 (8)

그림 Figure 1. Schematic of configuration of the child care nursery room
표 Table 1. Various cases of the simulations applying each infection model
그림 Figure 2. Airborne concentration of influenza virus based on quantum unit (a~b), and airborne infection risk as a function of exposure time in the presence of an infector based on Wells-Riley model (c~d)
그림 Figure 3. Airborne concentration of influenza virus based on TCID₅₀ unit (a~b), and airborne infection risk as a function of exposure time in the presence of an infector based on Dose-reponse model (c~d). Airborne infection risk for the specific r values : r=0.385 (e~f); r=0.75 (g~h)
그림 Figure 4. Airborne infection risk as a function of exposure time and threshold amount of pathogen causing to initiate infection on Dose-reponse model
그림 Figure 5. Airborne infection risk as a function of ventilation rate, CADR_virus and threshold amount of pathogen causing to initiate infection in the case of individually operating the ventilator or the infectious source reduction device based on Dose-reponse model
그림 Figure 6. Airborne infection risk as a function of ventilation rate, CADR_virus and threshold amount of pathogen causing to initiate infection when both facilities(the ventilator and the infectious source reduction device) were operated based on Dose-reponse model
그림 Figure 7. Airborne infection risk as a function of number of infectors and threshold amount of pathogen causing to initiate infection based on Dose-reponse model

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저자의 다른 논문 :

표제어: PCR

동의어: Packet Collision Rate

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용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

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