| Effect of environmental factors on photodegradation of polycyclic aromatic hydrocarbons (PAHs) in the water-soluble fraction of Kuwait crude oil in seawater. | |
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MedLine Citation:
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PMID: 21840588 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Photodegradation of PAHs in the water-soluble fraction of Kuwait crude oil in seawater was investigated under various environmental factors (temperature, light intensity, oxygen levels and presence of a sensitizer) in laboratory conditions. All factors investigated had significant effect on the degradation rates of PAHs. At 15 °C almost all PAHs optimally degraded at an oxygen level of 4 ppm. For lower molecular weight PAHs a light intensity of 500 W/m(2) in the presence of the sensitizer worked well. Higher molecular weight PAHs degraded at faster rates at a light intensity 750 W/m(2). At 30 °C, most of the PAHs degraded optimally at an oxygen level of 0 ppm and light intensity of 500 or 750 W/m(2) in presence of the sensitizer. At 40 °C, most of PAHs degraded optimally at low oxygen concentrations (0 and 4 ppm) and a light intensity of 500 W/m(2) in the presence of the sensitizer. Linear regression indicated that for most of the compounds, light intensity had the greatest effect on degradation rates. |
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Authors:
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Talat Saeed; Lulwa N Ali; Amal Al-Bloushi; Huda Al-Hashash; Majed Al-Bahloul; Ahmad Al-Khabbaz; Ahmad Al-Khayat |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-29 |
Journal Detail:
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Title: Marine environmental research Volume: - ISSN: 1879-0291 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-8-15 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882895 Medline TA: Mar Environ Res Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Environmental Sciences Department, Environmental & Urban Development Division, Kuwait Institute for Scientific Research, P.O. Box 24885, Safat-13109, Kuwait. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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