Abstract：
:Solid Phase Microextraction (SPME) was applied to provide the first large scale dataset of freely dissolved concentrations for 9 polycyclic aromatic hydrocarbons (PAHs) in Baltic Sea sediment cores. Polydimethylsiloxane (PDMS) coated glass fibers were used for ex-situ equilibrium sampling followed by automated thermal desorption and GC-MS analysis. From the PAH concentrations in the fiber coating we examined (i) spatially resolved freely dissolved PAH concentrations (Cfree); (ii) baseline toxicity potential on the basis of chemical activities (a); (iii) site specific mixture compositions; (iv) diffusion gradients at the sediment water interface and within the sediment cores and (v) site specific distribution ratios. Contamination levels were low in the northern Baltic Sea, moderate to elevated in the Baltic Proper and highest in the Gulf of Finland. Chemical activities were well below levels expected to cause narcosis to benthos organisms. The SPME method is a very sensitive tool that opens new possibilities for studying the PAHs at trace levels in marine environments.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Lang SC,Hursthouse A,Mayer P,Kötke D,Hand I,Schulz-Bull D,Witt Gdoi
10.1016/j.marpolbul.2015.10.069subject
Has Abstractpub_date
2015-12-15 00:00:00pages
296-303issue
1eissn
0025-326Xissn
1879-3363pii
S0025-326X(15)30142-9journal_volume
101pub_type
杂志文章abstract：:Fish farming in coastal areas is a rapidly growing industry. However, unregulated fish farming practices that release massive amounts of unconsumed feed and fecal material into the water column, can result in a nutrient-enriched environment that extends to nearby reef systems. To understand the impact of fish farm eff...
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journal_title：Marine pollution bulletin
pub_type： 杂志文章,评审
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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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journal_title：Marine pollution bulletin
pub_type： 杂志文章
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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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更新日期：2017-05-15 00:00:00
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journal_title：Marine pollution bulletin
pub_type： 杂志文章
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pub_type： 历史文章,杂志文章
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journal_title：Marine pollution bulletin
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更新日期：2005-01-01 00:00:00
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journal_title：Marine pollution bulletin
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更新日期：2013-02-15 00:00:00
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