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Title |
Estimation of Reduction Rate of Airborne Chlorides base on Coastal Distance and Facilities in Incheon Port, South Korea
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Authors |
정자혜(Jahe Jung) ; 이종석(Jong-Suk Lee) |
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DOI |
https://doi.org/10.11112/jksmi.2023.27.6.13 |
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Keywords |
인천항만 시설물; 비래염분; 해안거리에 따른 비래염분량 감소; 염해; 현지 측정 Port facilities; Airborne chlorides; Reduction equation of airborne chlorides according to coastal distance; Salt attack; In-situ measurement |
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Abstract |
In this study, the coastal airborne chlorides were investigated in the Incheon Port, South Korea. Monthly measurements of coastal airborne chlorides were taken for a total of 2 years from September 2021 to August 2023 at 15 locations in North, South, and New Port. We analyzed the distribution characteristics of airborne chloride based on port facilities and measurement environments, as well as the reduction characteristics of the airborne chloride with respect to coastal distance. As a result, the monthly distribution range of the airborne chloride in the North, South, and New Port varied similarly, ranging from 0.4 to 3.3 mdd. Due to the influence of seasonal winds considering the direction of the coastline, both the North Port and South Port had higher the airborne chloride in winter, while the New Port had higher content in summer. The airborne chlorides were higher at locations inside an inland sea compared to those outside an inland sea. This is because the wind coming from the sea passed through the inland sea. Even in the same region with identical coastal distances, there were variations in airborne chloride levels depending on the height above the ground. In tidal zone, the monthly airborne chlorides were significantly higher in the lower part than in the upper part. The rate of decrease equation of airborne chlorides for each port based on the distance from the coastline was derived, and the results showed that as the distance from the coastline increased, the rate of decrease in airborne chlorides was the highest for New Port and the lowest for South Port.
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