Distribution,sources, and ecological risk assessment of polycyclic aromatic hydrocarbons in surface sediments from the Nantong Coast,China |
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| Authors: | Na Liu Xian Li Daolai Zhang Qiang Liu Lihui Xiang Ke Liu Dongyun Yan Yue Li |
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| Institution: | 1. College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;3. Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao 266071, China;4. Eastern China Geological & Mining Organization for Non-ferrous Metals in Jiangsu Province, Nanjing 210007, China |
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| Abstract: | The distribution, sources, and ecological risk assessment of 16 polycyclic aromatic hydrocarbons (PAHs) in surface sediments from the Nantong coast in China were investigated. The results indicated that the total concentrations of the 16 PAHs in the surface sediments from the study area ranged from 1.4 to 87.1 ng g? 1 dw (mean value 19.9 ng g? 1 dw), which were generally low compared to the adjacent offshore area and other coastal zones around the world. The selected PAH ratios and the principal components analysis for each site showed that petroleum combustion and petrogenic pollution (mainly caused by petroleum spills) were the dominant PAHs sources in the surface sediments of the coast. The ecological risk assessment indicated that most of the individual PAHs had few negative effects in this area. |
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| Keywords: | Polycyclic aromatic hydrocarbons Sediment Source Ecological risk assessment Nantong Coast |
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