수동대기채취기를 이용한 전주시 산업단지 지역내 휘발성유기화합물의 배출원 파악

Abstract

The spatial and seasonal distribution of Volatile Organic Compounds (VOCs) and their major sources were investigated in a small industrial area of Jeonju, where industrial, urban, and rural areas are in close proximity. Passive air samplers were deployed at 15 sites for one month each in summer, fall, and winter, and the collected samples were extracted with CS2 and analyzed for 53 VOC species using GC/MS. The mean VOC concentrations increased from summer (3.4 µg/m3) to fall (6.6 µg/m3) and winter (8.2 µg/m3), although the difference between fall and winter was not significant. BTEX and tolune accounted for 83% and 40% of the total VOCs, respectively. Spatially, the highest concentration (21.6 µg/m3) was observed east of the industrial complex along the prevailing westerlies, dominated by toluene (14.8 µg/m3). PMF identified three factors representing (1) solvent/fuel handling and evaporation, (2) industrial emissions from manufacturing activities, and (3) domestic heating and industrial combustion, each showing distinct seasonal patterns. These findings indicate that air quality in Jeonju is affected not only by industrial activities but also by nearby residential and suburban emissions, and the results provide useful baseline information for air pollution management in small industrial areas.