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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국환경보건학회 한국환경보건학회지 한국환경보건학회지 제40권 제4호
발행연도
2014.1
수록면
304 - 312 (9page)

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Objectives: This study was performed to examine bioaerosols in indoor air in public restrooms, as well as toassess the effects of air temperature and relative humidity on bioaerosol levels. Methods: A cross-sectional survey was performed in ten male and ten female restrooms. An air sampler(Anderson type) was used for sampling total suspended bacteria (TSB), Gram-negative bacteria (GNB), Grampositivebacteria (GPB), opportunistic bacteria (OP), Staphylococcus spp., and total suspended fungi (TSF). Results: The levels of TSB were 10-102 CFU/m3 and TSF 10-102 CFU/m3, respectively. The GNB level was 0-10 CFU/m3, and GPB and OP levels were 10-102 CFU/m3. Staphylococcus aureus and methicillin-resistant S. aureus (MRSA) were detected in 90% of the restrooms. The GPB level was higher in the female restrooms thanin the male restrooms (p < 0.05). TSB, GNB, and TSF showed higher levels in restrooms in buildings over 30years old (p < 0.01). The main effect of air temperature or relative humidity and interaction effect of the twofactors on the TSB level were significant (p < 0.05), while the effect of relative humidity on the TSF level wassignificant (p < 0.001). Conclusions: These results indicate that there is a wide variation in the bioaerosol levels among differentrestrooms. The observed differences in bioaerosol levels reflect different building histories. The effects of airtemperature and/or relative humidity reveal that bioaerosol levels may vary according to season or time of day. Future research is needed to further characterize the relation between the bioaerosol levels and surfacecontamination in restrooms.

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