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Title |
Regional Variation of Airborne Chlorides and Estimation of Reduction Rate Based on Distance from Shorelines in South Korea
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Authors |
정자혜(Jahe Jung) ; 이종석(Jong-Suk Lee) |
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DOI |
https://doi.org/10.4334/JKCI.2025.37.2.177 |
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Keywords |
비래염분량 지역특성; 해안거리에 따른 비래염분량 감소; 염해; 현지 측정 regional characteristics of airborne chlorides; reduction equation of airborne chlorides according to coastal distance; salt attack; in-situ measurement |
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Abstract |
In this study, coastal airborne chloride levels were investigated along the entire coastline of South Korea. Monthlymeasurements were taken for a total of three years, from July 2021 to June 2024, at 64 coastal locations, including Jeju Island. Weanalyzed the regional variations in coastal airborne chloride and their reduction patterns with increasing distance from the shoreline. The results showed that at a distance of 100 meters from the shoreline, the coastal airborne chloride levels for the eastern coast,western coast, southern coast, and different regions of Jeju Island (east, west, south, and north area) were recorded as follows: 4.0,3.8, 1.6, 32.9, 13.0, 4.0 and 10.6 mdd, respectively. The highest levels were observed on Jeju’s eastern coast, and the lowest wererecorded on the southern coast. Notably, chloride levels in Gochang (western coast) and Geoje (southern coast) were more than threetimes and over 3.4 times higher, respectively, than the average for their respective coastline areas. Reduction equations for coastalairborne chlorides were derived for each region, confirming that chloride levels decrease with increasing distance from the shore. Therate of reduction was most significant on Jeju’s western coast and least pronounced along the southern coast.
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