Abstract:
:The Seine's estuary (France) waters are the receptacle of effluents originating from wastewater treatment plants (WWTP). In this estuary, mudflats are deposition zones for sediments and their associated contaminants, and play an essential role in the mercury (Hg) biogeochemical cycle mainly due to indigenous microorganisms. Microcosms were used to assess the impact of WWTP-effluents on mercury methylation by monitoring Hg species (total dissolved Hg in porewater, methylmercury and total mercury) and on microbial communities in sediments. After effluent amendment, methylmercury (MeHg) concentrations increased in relation with the total Hg and organic matter content of the WWTP-effluents. A correlation was observed between MeHg and acid-volatile-sulfides concentrations. Quantification of sulfate-reducing microorganisms involved in Hg methylation showed no increase of their abundance but their activity was probably enhanced by the organic matter supplied with the effluents. WWTP-effluent spiking modified the bacterial community fingerprint, mainly influenced by Hg contamination and the organic matter amendment.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Ramond JB,Petit F,Quillet L,Ouddane B,Berthe Tdoi
10.1016/j.marpolbul.2011.02.013subject
Has Abstractpub_date
2011-05-01 00:00:00pages
1073-80issue
5eissn
0025-326Xissn
1879-3363pii
S0025-326X(11)00072-5journal_volume
62pub_type
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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
doi:10.1016/j.marpolbul.2013.05.037
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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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journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2019.02.005
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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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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
doi:10.1016/j.marpolbul.2009.02.008
更新日期:2009-06-01 00:00:00
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pub_type: 杂志文章,评审
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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更新日期:2017-11-30 00:00:00
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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更新日期:2002-02-01 00:00:00
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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更新日期:2011-03-01 00:00:00
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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:2003-01-01 00:00:00
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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更新日期:2016-01-30 00:00:00
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journal_title:Marine pollution bulletin
pub_type: 杂志文章
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