Marine Bioresources and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
Marine Bioresources and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China.
Mar Pollut Bull. 2021 Jan;162:111800. doi: 10.1016/j.marpolbul.2020.111800. Epub 2020 Nov 7.
The distribution, source, and ecological risk of polycyclic aromatic hydrocarbons (PAHs) in surface sediments were analyzed and discussed at 15 sampling sites in Yazhou Bay, Sanya. Results showed that the total PAH content in the surface sediments of Yazhou Bay ranged from 13.20 ng/g to 40.37 ng/g, and the average content was 31.53 ng/g. Component analysis showed that the distribution of various PAHs in the surface sediments of Yazhou Bay was relatively average, and 3- and 4-ring PAHs were the dominant species. PAHs were traced by characteristic ratio method and principal component analysis. PAHs in the surface sediments mainly came from combustion sources, including incomplete combustion of petroleum, coal, and biomass, which also indicated the existence of petroleum sources. The ecological risk assessment results of surface sediments showed that, compared with effect range low and effect range median (ERM) of the ecological risk of 14 kinds of PAHs detected, no ecological risk existed for PAHs of all sampling sites in Yazhou Bay. The mean ERM quotient analysis also showed that PAHs in the sediments in Yazhou Bay were at a low risk level.
在三亚崖州湾的 15 个采样点分析和讨论了多环芳烃（PAHs）在表层沉积物中的分布、来源和生态风险。结果表明，崖州湾表层沉积物中总多环芳烃含量在 13.20ng/g 至 40.37ng/g 之间，平均值为 31.53ng/g。成分分析表明，崖州湾表层沉积物中各种多环芳烃的分布相对平均，3 环和 4 环多环芳烃为主要物种。通过特征比值法和主成分分析追踪 PAHs。表层沉积物中的多环芳烃主要来源于燃烧源，包括石油、煤和生物质的不完全燃烧，这也表明存在石油源。表层沉积物生态风险评估结果表明，与检测到的 14 种多环芳烃的生态风险低效应范围和中效应范围（ERM）相比，崖州湾所有采样点的多环芳烃均不存在生态风险。平均 ERM 商分析也表明，崖州湾沉积物中的多环芳烃处于低风险水平。
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