Distribution of nonylphenols and octylphenols in sediments of Kaohsiung Harbor, Taiwan
| Autor: | Zhi-Wei Ke, 柯志偉 |
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| Rok vydání: | 2014 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 102 In this research we have set twenty survey stations in Kaohsiung Harbor to conduct on-site sampling and monitoring of sediments. The aim is to analyze their particle diameters, water content, organic matter (OM), total organic carbon (TOC), 4-nonylphenols (4-NPs) and 4-tert-octylphenol (4-t-OP) in order to understand the concentration distributions and sources of 4-NP and 4-t-OP in the Harbor sediments. The results indicate that the concentrations of 4-NP and 4-t-OP fall within the ranges of 27.4–28,489 μg/kg dw (average 1,306 ± 992 μg/kg dw) and 1.2–1,139 μg/kg dw (average 47.7 ± 30.3 μg/kg dw). The concentrations of 4-NPs and 4-t-OP in the river mouths’ sediments are apparently higher and gradually decrease nearer the Harbor, especially the 4-NPs of the mouth of Jen-Gen River (average 13,798 ± 1,0649 μg/kg dw) and the 4-t-OP of the mouth of Love River (average 700 ± 452 μg/kg dw). This pattern shows that industrial wastewater and untreated municipal wastewater/sewage are the major sources. The correlation analysis indicates that TOC and OM play an important role in controlling the concentration level of 4-NPs and 4-t-OP in the sediments. However, in the pollution hotspot, the direct inflow of pollutants would be the crucial factor that determines the concentration and distribution of organic pollutants in sediments. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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