In this study, we investigate a seasonal underground market which is located under a semi-enclosed basement. Under such settings, there is difficulty in managing indoor air quality such as ventilation. Based on the result, we can improve the indoor air environment of the underground market. The underground market in Seoul was divided into four types according to its structural characteristics and the seasonal survey was conducted. In conclusion, we will develop a realistic improvement plan to improve the indoor air environment of the underground market by selecting the underground market through actual survey.

Abstract
 1. 서 론
 2. 연구방법
 3. 결과 및 고찰
  3.1동계 실태조사
  3.2춘계 실태조사
  3.3하계, 추계 실태조사
 4. 결 론
 References

• 김기철(한국건설기술연구원 국민생활연구본부) | Kichul Kim (Department of Living and Built Environment Research, Korea Institute of Civil Engineering and Building Technology)
• 이윤규(한국건설기술연구원 국민생활연구본부) | Yun Gyu Lee (Department of Living and Built Environment Research, Korea Institute of Civil Engineering and Building Technology) Corresponding author