Spatial distribution, sources and ecological risk assessment of polycyclic aromatic hydrocarbons in surface seawater from Yangpu Bay, China

作者：Li, Ping; Cao, Jia; Diao, Xiaoping^*; Wang, Baihua; Zhou, Hailong; Han, Qian; Zheng, Pengfei; Li, Yuhu

来源：Marine Pollution Bulletin, 2015, 93(1-2): 53-60.

DOI：10.1016/j.marpolbul.2015.02.015

• Polycyclic aromatic hydrocarbons
• Surface seawater
• Oil contamination
• Source
• Ecological risk assessment
• Yangpu Bay

The occurrence of 14 polycyclic aromatic hydrocarbons (PAHs) listed by the United States Environmental Protection Agency was investigated in surface seawater of Yangpu Bay, China in November 2013 (winter) and May 2014 (summer). Seventy-two samples were collected from 12 sampling sites. The total concentrations of PAHs in Yangpu Bay showed obvious variations in different seasons, which varied from 582.8 to 2208.3 ng L-1 in winter and 952.4 to 1201.7 ng L-1 in summer, respectively. Two-ring PAHs accounted for more than 91.6% of total PAHs in winter, and three-ring PAHs were dominant with 81.6% of total PAHs in summer. Molecular indices analyses indicated that the main source of PAHs in Yangpu Bay could be petrogenic contamination. The ecological risk assessment by Risk quotients (RQ(NCs) and RQ(MPCs)) showed a potential ecological risk of PAHs in Yangpu Bay, indicating a close attention should be paid to pollution of PAHs in the coastal area of Yangpu.

• 出版日期2015-4-15
• 单位海南大学; 中国农业大学