Classification of Airborne Bioaerosol concentration in multi-use facilities using cluster analysis

The management of Airborne Bioaerosol in multi-use facilities is focused on facilities used by vulnerable groups, but there are blind spot facilities used by an unspecified number of people. In this study, through cluster analysis, the environmental characteristics of multi-use facilities were identified by classifying them into four groups with similar concentration characteristics of total airborne bacteria and fungi. Facilities with high fungi tended to have high humidity, and the ratio was high in elderly care facilities and underground parking lots. In the case of bacteria, the number of occupants was high, and the ratio was high in daycare centers and underground shopping malls. It was confirmed that the characteristics of vulnerable facilities for total airborne bacteria and fungi were different. This suggests that customized measures for indoor environment management are needed because the biological hazards that need to be managed intensively vary depending on the facility.