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Characteristics and sources of potentially toxic elements in road-deposited sediments at the Port of Busan, South Korea: A key contributor to port sediments pollution
Marine Pollution Bulletin ( IF 5.3 ) Pub Date : 2024-11-16 , DOI: 10.1016/j.marpolbul.2024.117267
Jin Young Choi, Jae Seong Lee, Kyung-Tae Kim, Geun-Ha Park, Jun-Mo Jung, Gi Hoon Hong, Kongtae Ra, Sangmin Hyun, Chang Eon Lee, Eun-Ji Won

This study investigated the spatial distribution and chemical characteristics of potentially toxic elements (PTEs) in road-deposited sediments (RDS) at the Port of Busan by size fraction. Enrichment factor (EF) values for Zn, Cd, and Sb in fine RDS <250 μm were 52–69, 49–78, and 46–44, respectively, indicating ‘extremely high enrichment’. Various statistical analyses, including PCA and PMF models, revealed a strong correlation between pollution levels in RDS <250 μm and vehicle type, identifying non-exhaust emissions (NEE) of vehicles as a primary source of PTEs in RDS from the port. The risk index (RI) value of fine RDS ranged from 649 to 2238, indicating that the entire study area could be classified as having a ‘significant ecological risk,’ with higher values observed in heavy-duty vehicles (HDV) areas. The study underscores the need for effective NEE management to mitigate the environmental impact of ports on marine ecosystems.

中文翻译:


韩国釜山港道路沉积物中潜在有毒元素的特征和来源:港口沉积物污染的主要因素



本研究按粒径分数调查了釜山港道路沉积物 (RDS) 中潜在有毒元素 (PTE) 的空间分布和化学特性。精细 RDS <250 μm 中 Zn、Cd 和 Sb 的富集因子 (EF) 值分别为 52-69、49-78 和 46-44,表明“极高富集”。各种统计分析,包括 PCA 和 PMF 模型,揭示了 RDS <250 μm 的污染水平与车辆类型之间的强相关性,确定车辆的非废气排放 (NEE) 是港口 RDS 中 PTE 的主要来源。精细 RDS 的风险指数 (RI) 值在 649 到 2238 之间,表明整个研究区域可以归类为具有“重大生态风险”,在重型车辆 (HDV) 区域观察到更高的值。该研究强调了有效的 NEE 管理的必要性,以减轻港口对海洋生态系统的环境影响。
更新日期:2024-11-16
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