This study examines the relationship between short-run variation in vessel activity and coastal air quality in a major coastal city. Hourly monitor-level air-quality readings in Busan, South Korea are linked to a port-exposure index that aggregates hourly vessel tonnage at piers using inverse-distance weights. Panel regressions with fixed effects suggest a positive relationship between port exposure and PM10 and PM2.5. A back-of-the-envelope calculation implies that a 1,000-unit increase in the exposure index corresponds to about 0.18% higher PM10 and 0.33% higher PM2.5. The estimates provide an exposure-concentration mapping that may serve as a basis for further study into port-related environmental impacts in coastal cities.

Abstract
I. Introduction
Ⅱ. Data
    1. Data sources and sample construction
    2. Data management: Port-exposure index
Ⅲ. Empirical strategy
Ⅳ. Results
Ⅴ. Conclusion
REFERENCES

• 김태현(한국농촌경제연구원 부연구위원) | Tae-Hyun Kim (Associate Research Fellow, Department of Food & Agriculture Economic Research, Korea Rural Economic Institute, Naju-si, Jellanam-do, 58321, Rep. of Korea) Corresponding author