An assessment of human influences on sources of polycyclic aromatic hydrocarbons in the estuarine and coastal sediments of China

作者：Duan Xiaoyong; Liu Jinqing; Zhang Daolai; Yin Ping^*; Li Yanxia; Li Xianguo

来源：Marine Pollution Bulletin, 2015, 97(1-2): 309-318.

DOI：10.1016/j.marpolbul.2015.05.071

• Polycyclic aromatic hydrocarbons
• Coastal sediment
• Source apportionment
• Human activity
• China

Sediments collected from the coastal area of China, embracing west coast of Bohai Sea, south coast of Shandong Peninsula, and the Changjiang estuary (listed in order of decreasing north latitude), were analyzed for polycyclic aromatic hydrocarbons (PAHs). Sigma EPAH (Sixteen US EPA priority PAHs) were 2.7-350.9 ng/g. Petroleum residue was the major contributor of PAHs in the coastal sediments of China due to oil leakage from ships and offshore oil fields. The contribution of vehicular emissions in coast of North China was significantly lower than that in the Changjiang Estuary, and the reverse was true for coal combustion. PAH concentrations in the sediment core of the Changjiang estuary steadily increased upward and the variation was primarily due to economic development and severe floods. The impact on PAHs by vehicular emissions (37.2%) and petrogenic sources (45.8%) overwhelmed combustion sources (17.0%).

• 出版日期2015-8-15
• 单位中国海洋大学; 青岛海洋地质研究所