| DISTRIBUTION AND COMPOSITION OF PAHs IN SURFACE WATERS, POREWATER AND SEDIMENTS FROM XIAMEN WESTERN BAY |
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| 作者姓名： | 洪华生 张祖麟 陈伟琪 周俊良 |
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| 作者单位： | [1]EmizownogalScioweResearchCentre,XiamenUniversity,361005,China [2]SchoolofOceanSciemces,UniversityofWalesBangor,UnitedKingdom |
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| 摘 要： | Xiamen Western Bay‘s water and sedimem quality were studied by detemaining thelevels of sixteen polycyclic amrrmtic hydrocarbons PAHs in water, porewater and sediment samples from nine locations in the bay. Total PAH concentrations varied from 106 to 945 ng/1 in water, below detectionto 3548 ng/1 in porewater, and 247 to 480 ng/g dry weight in surface sediments. PAHs levels in porewaterwere higher than those in surface water, due to the preference of these hydrophobic compounds for sedimentary phase instead of water. Such a concentration gradient implies a potential flux of pollutants fromsediments to overlying water. The PAils levels in sediments were one to several orders of magnitude lowerthan those in 1993, suggesting their decreased input in recent years and possible degradation with time.
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| 关 键 词： | 厦门市 PAH 多环芳烃 表层沉积物 西港 |
| 收稿时间： | 27 June 1999 |
| 修稿时间： | 10 March 2000 |
Distribution and composition of fahs in surface waters, porewater and sediments from Xiamen Western Bay |
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| Maskaoui Khalid,Hong Hua-sheng,Zhang Zu-lin,Chen Wei-qi,Zhou Jun-liang.DISTRIBUTION AND COMPOSITION OF PAHs IN SURFACE WATERS, POREWATER AND SEDIMENTS FROM XIAMEN WESTERN BAY[J].Chinese Journal of Oceanology and Limnology,2001,19(1):73-80. |
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| Authors: | Maskaoui Khalid Hong Hua-sheng Zhang Zu-lin Chen Wei-qi Zhou Jun-liang |
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| Institution: | (1) Environmental Science Research Centre, Xiamen University, 361005, China;(2) School of Ocean Sciences, University of Wales, Bangor, UK |
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| Abstract: | Xiamen Westem Bay's water and sediment quality were studied by determining the levels of sixteen polycyclic aromatic hydrocarbons
(PAHs) in water, porewater and sediment samples from nine locations in the bay. Total PAH concentrations varied from 106 to
945 ng/l in water, below detection to 3548 ng/l in porewater, and 247 to 480 ng/g dry weight in surface sediments. PAHs levels
in porewater were higher than those in surface water, due to the preference of these hydrophobic compounds for sedimentary
phase instead of water. Such a concentration gradient implies a potential flux of pollutants from sediments to overlying water.
The PAHs levels in sediments were one to several orders of magnitude lower than those in 1993, suggesting their decreased
input in recent years and possible degradation with time.
Project supported by China Bridge Interational (CBI) of NSFC. |
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| Keywords: | PAH SPE pollution Xiamen Western Bay |
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