College of Marine Life Sciences, Ocean University of China, Qingdao 266003, PR China; First Institute of Oceanography, MNR, Qingdao 266061, PR China.
First Institute of Oceanography, MNR, Qingdao 266061, PR China.
Mar Pollut Bull. 2024 Oct;207:116870. doi: 10.1016/j.marpolbul.2024.116870. Epub 2024 Aug 21.
The Yellow River Estuary (YRE) is one of highly remarkable regions profoundly impacted by human activities, with numerous oil platforms dispersed throughout. In this area, offshore oil exploitation may pose significant ecological risks. To comprehensively evaluate the quantitative impacts of oil field exploitation on the marine coastal ecosystem, this study investigated the occurrence, sources, and ecological risks associated with 16 polycyclic aromatic hydrocarbons (PAHs) in seawater and sediment near oil platforms in the YRE. We found that 1) The concentrations of PAHs decreased from the surface seawater to sediments; 2) The ecological risk level of PAHs in seawater exceeded that in sediments; 3) terrestrial sources (combustion), rather than offshore oil drilling activities, significantly influenced regional ecological risks through processes of atmospheric deposition and surface runoff. These findings provide essential data for future estuarine research efforts while supporting mitigation measures aimed at addressing marine environmental pollution related to oil production activities.
黄河口（YRE）是受人类活动影响极大的显著区域之一，分布着众多的石油平台。在该地区，海上石油开采可能会带来重大的生态风险。为了全面评估油田开采对海洋沿海生态系统的定量影响，本研究调查了黄河口石油平台附近海水中和沉积物中 16 种多环芳烃（PAHs）的存在、来源和生态风险。结果表明：1）PAHs 的浓度从表层海水向沉积物中降低；2）海水中 PAHs 的生态风险水平高于沉积物；3）陆地源（燃烧）而非海上石油钻探活动通过大气沉降和地表径流过程显著影响区域生态风险。这些发现为未来河口研究工作提供了重要数据，并支持旨在解决与石油生产活动相关的海洋环境污染的缓解措施。
