Yeosu National Industrial Complex is one of Korea’s representative petrochemical industrial complexes where crude oil refining and petrochemical companies are concentrated. According to the results of the 2021 chemical emissions survey, during the process of manufacturing, storage, and transportation at the Yeosu National Industrial Complex, various hazardous chemicals, including hazardous air pollutants, volatile organic compounds and odorous substances are being emitted into the air, affecting the surrounding environment and the health of residents. The Ministry of Environment is applying strengthened standards by designating the Yeosu National Industrial Complex as an air conservation special measure area and establishing odor management areas to manage the air environment. Nevertheless, odor complaints continue to be registered and related complaints increase when turnaround work is carried out. Since air emissions are not counted during periods of turnaround as normal operations are temporarily suspended, it was difficult to establish policies to reduce odor complaints because the source of emissions and emission quantities cannot be ascertained with certainty. In this study, the extensive Yeosu National Industrial Complex was subdivided into 4 areas using a mobile vehicle equipped with PTR-ToF-MS capable of real-time analysis without sample pretreatment being carried out. Measurements were repeated during the day, night, and dawn while moving around the internal boundary of the plant and the boundary of each region where turnaround activities were being carried out. As a result, the recorded measurement for acrylonitrile was the highest at 6340.0 ppb and propyne and propene were measured the most frequently at 128 times each. Based on these results, it will be possible to help reduce emissions through process improvement by efficiently operating air measurement networks and odor surveys that conduct regular measurements throughout the year and providing actual measurement data to the plant. Also, it will help reduce odor complaints and establish systematic air management policies.

1. 서 론
2. 연구내용 및 방법
    2.1 조사대상
    2.2 PTR-ToF-MS 이용한 유해대기오염물질 실시간 측정
    2.3 표준가스를 이용한 교정
3. 연구결과 및 고찰
    3.1 이동측정 결과(Mobile monitoring)
    3.2 시·공간적 분포특성
    3.3 주요 검출물질 특성
4. 결 론
감사의 글
References

• 이정일(전라남도보건환경연구원) | Jeong-iL Lee (Jeollanam-do Institute of Health and Environment)
• 박혜영(전라남도보건환경연구원) | Hye-Yeong Park (Jeollanam-do Institute of Health and Environment)
• 김계홍(전라남도보건환경연구원) | Kye-Hong Kim (Jeollanam-do Institute of Health and Environment) Corresponding author
• 정종현(전라남도보건환경연구원) | Jong-Hyeon Jeong (Jeollanam-do Institute of Health and Environment)
• 허동화(전라남도보건환경연구원) | Dong-Hwa Heo (Jeollanam-do Institute of Health and Environment)
• 임형인(전라남도보건환경연구원) | Hyeong-In Lim (Jeollanam-do Institute of Health and Environment)
• 주세윤(전라남도보건환경연구원) | Se-Yun Ju (Jeollanam-do Institute of Health and Environment)