Department of Ocean Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea.
Department of Ocean Environmental Sciences, Chungnam National University, Daejeon 34134, Republic of Korea.
Mar Pollut Bull. 2020 Nov;160:111560. doi: 10.1016/j.marpolbul.2020.111560. Epub 2020 Aug 22.
Contamination status of traditional and emerging persistent toxic substances (PTSs) in sediments and their major sources were investigated in Ulsan Bay, Korea. A total of 47 PTSs, including 15 traditional PAHs, ten styrene oligomers (SOs), six alkylphenols (APs), and 16 emerging PAHs (E-PAHs) were analyzed. Concentrations of traditional PAHs, SOs, and APs ranged from 35 to 1300 ng g dry weight (dw), 30 to 3800 ng g dw, and 30 to 430 ng g dw, respectively. For the last 20 years, PTSs contamination in the bay area has been improved. However, 12 E-PAHs were widely detected in sediments, with a maximum of 240 ng g dw (for benzo[e]pyrene) at the creek site. These E-PAHs seemed to originate from surrounding activities, such as biomass combustion, mobile sources, and diesel combustion. Due to environmental concerns for E-PAHs, further research on the potential toxicity, distribution, and behavior of these compounds should be implemented.
本研究调查了韩国蔚山湾沉积物中传统和新兴持久性有毒物质（PTSs）的污染状况及其主要来源。共分析了 47 种 PTSs，包括 15 种传统多环芳烃（PAHs）、10 种苯乙烯低聚物（SOs）、6 种烷基酚（APs）和 16 种新兴 PAHs（E-PAHs）。传统 PAHs、SOs 和 APs 的浓度范围分别为 35 至 1300ng/g 干重（dw）、30 至 3800ng/g dw 和 30 至 430ng/g dw。在过去的 20 年里，湾区 PTSs 的污染状况得到了改善。然而，在沉积物中广泛检测到 12 种 E-PAHs，在小溪处的浓度最高，达 240ng/g dw（苯并[e]芘）。这些 E-PAHs 似乎来源于周边活动，如生物质燃烧、移动源和柴油燃烧。由于对 E-PAHs 的环境关注，应进一步研究这些化合物的潜在毒性、分布和行为。
