The purpose of this study was to obtain the basic data needed to identify the impact of the odor, emitted from the Ochang Scientific Industrial Complex area on the surrounding residential areas by measuring and confirming odor compounds. The analysis showed that complex odors were diluted from around 4 to 1. The offensive odor measurement results showed that among the sites, site 1 was highest in sulfur compounds, site 2 was highest in toluene, site 3 was highest in trimethylamine, and site 4 was highest in buthylaldehyde. It cannot be decided to be odor-causing compounds for higher odor concentration because each odor substance has a different odor threshold value. According to the odor contribution analysis for each site, site 1, site 2, and site 4 contained high buthylaldehyde concentrations, and site 3 had a high level of trimethylamine. It could be determined that highly evaluated substances were main causes to result in substance for each site.

Abstract
 1. 서 론
 2. 연구내용 및 방법
  2.1. 연구대상 오창과학산업단지의 현황
  2.2. 악취의 측정
  2.3. 악취기여도평가(odor contribution analysis : OCA)
 3. 연구결과 및 고찰
  3.1. 악취물질 측정결과
  3.2. 악취활성값 산정과 기여도평가
 4. 결 론
 감사의 글
 REFERENCES

• 정지선(한국교통대학교 일반대학원 녹색바이오공학과, Department of Green Bio Engineering, Graduate School of Korea National University of Transportation) | Ji-Sun Jung
• 김덕철(한국교통대학교 일반대학원 녹색바이오공학과, Department of Green Bio Engineering, Graduate School of Korea National University of Transportation) | Duk-Chul Kim,
• 이한철(한국교통대학교 일반대학원 녹색바이오공학과, Department of Green Bio Engineering, Graduate School of Korea National University of Transportation) | Han-Chul Lee
• 연승원(한국교통대학교 환경공학과, Department of Environment Engineering, Korea National University of Transportation) | Seoung-Won Yeon
• 연익준(한국교통대학교 환경공학과, Department of Environment Engineering, Korea National University of Transportation) | Ik-Jun Yeon Corresponding author