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|a 10.1080/09593330.2010.483598
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|a eng
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|a Mzoughi, Nadia
|e verfasserin
|4 aut
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|a Distribution of trace metals, aliphatic hydrocarbons and polycyclic aromatic hydrocarbons in sediment cores from the Sicily Channel and the gulf of Tunis (south-western Mediterranean Sea)
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|c 2011
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|a Text
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|a ƒaComputermedien
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|a Date Completed 07.06.2011
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|a Date Revised 25.11.2016
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|a published: Print
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|a Citation Status MEDLINE
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|a Under the framework of the IAEA's Technical Co-operation project RAF7/004, international research cruises were carried out in 2004 to assess the distribution of radionuclides and micropollutants in the south-western Mediterranean Sea. Sediments samples had variable concentrations of total aliphatic hydrocarbons and polycyclic aromatic hydrocarbons ranging from 0.2 to 1.8 microg g(-1) and 26.9 to 364.4 ng g(-1), respectively, in the Sicily Channel and from 0.7 to 2.8 microg g(-1) and 14.7 to 618.1 ng g(-1), respectively, in the open sea of the Gulf of Tunis. Hydrocarbon concentrations changed with depth and were relatively high at 3 cm and 10 cm depths. The use of 'fingerprint' ratios of certain isomeric pairs of polycyclic aromatic hydrocarbons (PAH) and the proportion of 2-3 ring and 4-5 ring PAH concentrations showed that the main origins are characteristic of petroleum sources. The ranges of trace metal concentrations, expressed in microgg(-1), in the Sicily Channel and in the Gulf of Tunis, respectively, were: Hg 0.009-0.2 and 0.02-0.1; Pb 9.9-26.1 and 21.2-32.5; Cd 0.06-0.1 and 0.07-0.33; Fe 23.7-28.1 and 29.9-36.2p; Zn 83-99.5 and 83-104; Mn 309.2-752.5 and 651-814; Cu 17.1-18.5 and 33.5-51.3. Sediment metal abundances were in the order: Mn > Zn > Fe > Cu > Pb > Cd > Hg. The results showed significant differences (p < 0.001) for trace metal and hydrocarbon mean concentrations between the two cores. These concentrations are generally similar to the background levels from the Mediterranean Sea and could be affected by physico-chemical conditions and sedimentation rate as well as biodegradation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Hydrocarbons, Acyclic
|2 NLM
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|a Metals, Heavy
|2 NLM
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|a Polycyclic Aromatic Hydrocarbons
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|a Chouba, Lassaad
|e verfasserin
|4 aut
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|i Enthalten in
|t Environmental technology
|d 1998
|g 32(2011), 1-2 vom: 28. Jan., Seite 43-54
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|x 0959-3330
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|g volume:32
|g year:2011
|g number:1-2
|g day:28
|g month:01
|g pages:43-54
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