Abstract:
:This study focused on the accumulation and biodegradation of two typical polycyclic aromatic hydrocarbons (PAHs), phenanthrene (PHE) and fluoranthene (FLA), by the diatoms enriched from a mangrove aquatic ecosystem in the Jiulong River estuary, China. After separation, purification and culture, Skeletonema costatum (Greville) Cleve and Nitzschia sp. were exposed to different concentrations of PHE, FLA, and a mixture of the two. The results showed that the tolerance of S.costatum to PHE and FLA was greater than that of Nitzschia sp., and that the toxic effect of FLA on S. costatum and Nitzschia sp. was higher than that of PHE. The microalgal species S. costatum and Nitzschia sp. were capable of accumulating and degrading the two typical PAHs simultaneously. The accumulation and degradation abilities of Nitzschia sp. were higher than those of S. costatum. Degradation of FLA by the two algal species was slower, indicating that FLA was a more recalcitrant PAH compound. The microalgal species also showed comparable or higher efficiency in the removal of the PHE-FLA mixture than PHE or FLA singly, suggesting that the presence of one PAH stimulated the degradation of the other.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Hong YW,Yuan DX,Lin QM,Yang TLdoi
10.1016/j.marpolbul.2008.05.003subject
Has Abstractpub_date
2008-08-01 00:00:00pages
1400-5issue
8eissn
0025-326Xissn
1879-3363pii
S0025-326X(08)00270-1journal_volume
56pub_type
杂志文章abstract::Development of national policy on sewage sludge management is a classic example of incremental policy formulation [Fiorino, D.J. 1995. Making Environmental Policy. University of California Press. Berkeley, CA. p. 269]. Consequently, policy has developed piecemeal, and results are, in some ways, different than intended...
journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
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pub_type: 杂志文章
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2011-10-01 00:00:00
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journal_title:Marine pollution bulletin
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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pub_type: 杂志文章
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