AAAR 37th Annual Conference October 14 - October 18, 2019 Oregon Convention Center Portland, Oregon, USA
Abstract View
Indoor Environmental Quality and Association with Human Perception at Schools and Homes of Urban and Rural Areas
HYEON-JU OH, Jong-Ryeul Sohn, Korea University
Abstract Number: 840 Working Group: Indoor Aerosols
Abstract Poor indoor environmental quality (IEQ) poses a threat to respiratory health and interests in IEQ became increasing. Here, we investigated the indoor environmental quality at schools and homes of urban and rural areas and the survey on the human perception of IEQ was conducted. For the IEQ, the temperature, relative humidity, CO2, bioaerosols, PM10, PM2.5 levels and the variations of IEQ depend on the indoor potential sources (cooking and cleaning) were investigated, and their survey was conducted as the human perception, health performances and thermal comfort. There was no difference in PM10 concentrations between urban and rural areas. However, PM2.5 showed significant differences between indoor and outdoor at urban areas. Higher correlation of PM levels between indoor and outdoor showed at the rural areas. There was no significant difference in the concentration of airborne bacteria and fungi between urban and rural areas. The CO2 concentrations in schools were correlated with the corresponding the number of students (R2 of 0.71- 0.85 in summer and 0.14 - 0.86 in winter). For the airborne bacteria and fungi, there was no significant difference in the concentrations of bacteria and their species between sampling places. However, for the concentrations of fungi, there was the significant differences in samples collected from urban and rural groups. Significant associations were observed between the satisfactions (%) of outdoor air quality and both indoor PM concentrations and respiratory illness symptom. This study shows that people's perception of outdoor pollutant concentration affects the satisfaction of indoor air quality concentration and the respiratory diseases and many sources in indoors may combine to become more serious problem together than they are separately. Also, this study demonstrated that human perception of outdoor pollutant level affects the satisfaction of IEQ levels.
Funding: NRF- 2018R1A6A3A11048705 and NRF-2018R1A6A1A03025761