AI Article Synopsis
- The Yellow River Estuary (YRE) is significantly affected by human activities, particularly offshore oil drilling, which poses ecological risks to the marine environment.
- Researchers evaluated the impact of 16 polycyclic aromatic hydrocarbons (PAHs) in seawater and sediment, revealing that PAH concentrations were higher in seawater than in sediments, with the ecological risk level being greater in seawater.
- The study concluded that terrestrial sources, mainly from combustion, contributed more to regional ecological risks than offshore drilling, highlighting the need for better environmental protection measures in the area.
Article Abstract
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.
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| http://dx.doi.org/10.1016/j.marpolbul.2024.116870 | DOI Listing |
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