Distribution, sources and ecological risk assessment of PAHs in surface seawater from coastal Bohai Bay, China

被引：44
|
作者：
Tong, Yifan [1 ]
Chen, Li [1 ]
Liu, Yan [1 ]
Wang, Yaning [1 ]
Tian, Shengyan [1 ,2 ,3 ]
机构：
[1] Tianjin Univ Sci & Technol, Coll Marine & Environm Sci, Tianjin 300457, Peoples R China
[2] Tianjin Marine Environm Protect & Restorat Techno, Tianjin 300457, Peoples R China
[3] Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2019年 / 142卷
基金：
中国国家自然科学基金;
关键词：
Polycyclic aromatic hydrocarbons (PAHs); Surface seawater; Source; Ecological risk; Bohai Bay; POLYCYCLIC AROMATIC-HYDROCARBONS; PERSISTENT ORGANIC POLLUTANTS; SPATIAL-DISTRIBUTION; RIVER ESTUARY; LIAODONG BAY; SEA; WATER; SEDIMENTS; MATTER; INPUT;
D O I：
10.1016/j.marpolbul.2019.04.004
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The distribution, composition, potential sources and ecological risk of 16 US EPA priority polycyclic aromatic hydrocarbons (PAHs) were investigated in surface water from coastal Bohai Bay. The PAH concentrations ranged from 48.0 to 607 ng L-1 with the mean value of 267 ng L-1 in dissolved phase and 198 to 935 ng L-1 with the mean value of 424 ng L-1 in particle-associated phase, and decreased following the order: Qinhuangdao (QHD) > Caofeidian (CFD) > Huanghuagang (HHG). The 2-3 ring PAHs accounted for 79.9% to 86.2% in particle-associated phase and 65.6% to 73.2% in dissolved phase of total 16 PAHs, in which naphthalene (Nap) was the most dominant compound. The PAHs in surface seawater mainly originated from petrogenic sources according to the molecular ratios of benzo[a]anthracene/228 and fluoranthene/202. Risk quotients indicated that there was potential ecological risk for PAHs in surface seawater, especially for pyrene and fluorene.
引用
收藏
页码：520 / 524
页数：5
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