碩士 / 國立中山大學 / 海洋環境及工程學系研究所 / 106 / This study investigated the concentration distribution of perfluorinated compounds (PFCs) in the Pearl River estuary of China. Collects samples of seawater and core sediments at different depths to understand the transport behavior of PFCs in the environment. Seawater and core sediment samples were collected from the Pearl River estuary of China at different depths to understand the transport behavior and contribution of PFCs in the area.
The results showed that the total concentration of PFCs in seawater ranged from n.d. to 15.10 ng/L, and the predominant compounds of PFCs in seawater samples were perfluorobutyl sulfonate (PFBS) is different from other regions, suggesting that the Pearl River Delta region may have specific sources of PFBS pollution. The results also showed that the total concentration range of PFCs in sediment was n.d. to 2.68 ng/g, and the major compounds of PFCs in the seawater samples were perfluorooctanoic acid (PFOA), which is similar to that of PFCs from other studies. In addition, the total concentration of PFCs in seawater and sediment samples decrease with the depth increasing, similar to global emission trends for total PFCs. Compared with other literatures, although the highest polluted area was not found in the sampling region of this study, but the concentration distribution is affected by high industrialization, urbanization, and humam activities.
Total organic carbon content (TOC) was significantly negatively correlated with mean particle size (r = -0.438, p = 0.01); and TOC was significantly positively correlated with total concentration of PFCs (r = 0.323, p = 0.01). The data are consistent with other previous. The sediment samples were analyzed by principal component analysis (PCA) and hierarchical cluster analysis (HCA) to identify their compositions. The results can be divided into two clusters, the one cluster included PFOA, Perfluorooctane sulfonate (PFOS); another cluster was predominated by PFBS, Perfluorohexyl sulfonate (PFHxS) and Perfluorodecanoic acid (PFDA).
| Identifer | oai:union.ndltd.org:TW/106NSYS5282013 |
| Date | January 2018 |
| Creators | Li-Ting Lin, 林立庭 |
| Contributors | Lee, Chon-Lin, 李宗霖 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 131 |
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