From January 1, 2020, the International Maritime Organization has implemented a global regulation, known as IMO 2020, to reduce the sulfur content in fuel oil of ships from 3.5% to 0.5%. In this study, we used data from air monitoring stations to evaluate the change in air quality at New Port and North Port in Korea areas after the regulation was implemented. The concentration of SO2 and NO2 was higher in the port areas than in the surrounding areas due to exhaust gas from ships and vehicles. However, the SO2 concentration decreased by more than 50% in the port area, demonstrating the efficiency and positive effect of the IMO 2020 sulfur limit.

Abstract
1. 서 론
2. 연구 방법
    2.1. 선박 입출항 및 컨테이너 물동량
    2.2. CAPSS ’17년도 배출량
    2.3. 대기오염도 및 기상 자료
3. 결과 및 고찰
    3.1. 연평균 및 최근 3년간 11월~12월의 평균농도
    3.2. 월평균 및 일평균 농도 특성
    3.3. SO2의 풍향별 특성
4. 결론
REFERENCES

• 박정호(경상국립대학교 환경공학과) | Jeong-Ho Park (Department of Environmental Engineering, Gyeongsang National University) Corresponding author