국내 실내공기 중 생물학적 유해인자(세균, 진균) 노출 특성

Abstract

Background: Currently, there are no comparative studies of differences in concentrations of biological agents (airborne bacteria and fungi) in various indoor environments reported in domestic South Korean journals. Objectives: To identify the characteristics of exposure concentrations in the indoor environment by analyzing studies on airborne bacteria and fungi from biological factors published in domestic journals. Methods: A total of 239 articles were retrieved using the Korean Studies Information Service System (KISS), and 20 employing the impactor sampling method were ultimately selected. Among the various sampling techniques, impactor sampling was chosen due to its widespread use in domestic studies and for its ability to provide standardized, culture-based concentration data (CFU/m3) that enables reliable comparison across different indoor environments. Among these studies, 13 addressed airborne bacteria and ten addressed airborne fungi. To compare concentration levels across different types of indoor environments, non- parametric statistical analyses, including the Kruskal-Wallis test, were performed using R and SPSS. Results: According to the comparison of bacterial concentrations by indoor environment type, the average bacterial concentration showed a statistically significant difference depending on the classification of indoor environments (p<0.01). Occupational environments, particularly organic waste resource facilities, showed the highest mean bacterial concentration at 4,126.8 CFU/m3, exceeding the South Korean indoor air quality guideline of 800 CFU/m3. Conclusions: These findings provide an overview of the concentration levels of airborne bacteria and fungi in various indoor environments in South Korea and may serve as a foundational reference for establishing indoor air quality management policies.