Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea; Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI 48109, United States.
Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
Mar Pollut Bull. 2020 Nov;160:111666. doi: 10.1016/j.marpolbul.2020.111666. Epub 2020 Sep 17.
River and coastal sediments were collected at 17 stations in Ulsan, the largest industrial city in South Korea, to evaluate the levels, profiles, emission sources, and spatial distribution of polycyclic aromatic hydrocarbons (PAHs). The mean concentration of Σ PAHs was 722 ng/g, and fluoranthene was a predominant compound. PAHs with 4-6 rings showed higher proportions than PAHs with 2-3 rings. The stations located near industrial complexes showed elevated levels of indicator compounds for petroleum, coal, coke, and fuel combustion. Therefore, petrochemical industries, coal pier, non-ferrous industries, and vehicles were identified as the emission sources. As industrialization and urbanization progressed, an increase in PAH levels and profile changes were observed as a result of the increasing industrial fuel consumption and the increasing number of vehicles. This is the first study that confirmed the change of PAHs in sediment caused by the change of emission sources over time in Ulsan.
在韩国最大的工业城市蔚山的 17 个站点采集了河流和沿海沉积物，以评估多环芳烃（PAHs）的水平、分布、排放源和空间分布。Σ PAHs 的平均浓度为 722ng/g，荧蒽是主要化合物。四环和六环 PAHs 的比例高于二环和三环 PAHs。位于工业综合体附近的站点显示出石油、煤、焦炭和燃料燃烧的指示化合物的含量较高。因此，确定石化工业、煤码头、有色金属工业和车辆为排放源。随着工业化和城市化的发展，由于工业燃料消耗的增加和车辆数量的增加，观察到 PAH 水平的增加和分布变化。这是第一项确认蔚山随着时间的推移，由于排放源的变化，沉积物中 PAHs 发生变化的研究。
