Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities
The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different...
Ausführliche Beschreibung
Autor*in: |
de Oliveira, Diana Ciannella Martins [verfasserIn] |
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Format: |
Artikel |
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Sprache: |
Englisch |
Erschienen: |
2015 |
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Rechteinformationen: |
Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. |
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Schlagwörter: |
Geologic Sediments - chemistry Avicennia - growth & development Poaceae - growth & development |
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Systematik: |
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Übergeordnetes Werk: |
Enthalten in: Chemosphere - Kidlington, Oxford : Elsevier Science, 1972, 127(2015), Seite 214-221 |
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Übergeordnetes Werk: |
volume:127 ; year:2015 ; pages:214-221 |
Links: |
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DOI / URN: |
10.1016/j.chemosphere.2015.02.009 |
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OLC196306030X |
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520 | |a The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. | ||
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650 | 4 | |a Geologic Sediments - chemistry | |
650 | 4 | |a Avicennia - growth & development | |
650 | 4 | |a Plant Leaves - chemistry | |
650 | 4 | |a Plant Roots - chemistry | |
650 | 4 | |a Avicennia - chemistry | |
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650 | 4 | |a Poaceae - growth & development | |
650 | 4 | |a Poaceae - chemistry | |
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700 | 1 | |a Marinho, Claudio Cardoso |4 oth | |
700 | 1 | |a Guimarães, Jean Remy Davée |4 oth | |
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10.1016/j.chemosphere.2015.02.009 doi PQ20160617 (DE-627)OLC196306030X (DE-599)GBVOLC196306030X (PRQ)c1919-9050898f33cbd758985aadd0e3a7967438cc2cc68c4240b683d50cdb650945b00 (KEY)0012464820150000127000000214mercurymethylationinsedimentsofabrazilianmangroveu DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl de Oliveira, Diana Ciannella Martins verfasserin aut Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Geologic Sediments - chemistry Avicennia - growth & development Plant Leaves - chemistry Plant Roots - chemistry Avicennia - chemistry Mercury - analysis Poaceae - growth & development Poaceae - chemistry Methylmercury Compounds - analysis Plant Roots - growth & development Correia, Raquel Rose Silva oth Marinho, Claudio Cardoso oth Guimarães, Jean Remy Davée oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 127(2015), Seite 214-221 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:127 year:2015 pages:214-221 http://dx.doi.org/10.1016/j.chemosphere.2015.02.009 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25732633 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 127 2015 214-221 |
spelling |
10.1016/j.chemosphere.2015.02.009 doi PQ20160617 (DE-627)OLC196306030X (DE-599)GBVOLC196306030X (PRQ)c1919-9050898f33cbd758985aadd0e3a7967438cc2cc68c4240b683d50cdb650945b00 (KEY)0012464820150000127000000214mercurymethylationinsedimentsofabrazilianmangroveu DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl de Oliveira, Diana Ciannella Martins verfasserin aut Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Geologic Sediments - chemistry Avicennia - growth & development Plant Leaves - chemistry Plant Roots - chemistry Avicennia - chemistry Mercury - analysis Poaceae - growth & development Poaceae - chemistry Methylmercury Compounds - analysis Plant Roots - growth & development Correia, Raquel Rose Silva oth Marinho, Claudio Cardoso oth Guimarães, Jean Remy Davée oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 127(2015), Seite 214-221 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:127 year:2015 pages:214-221 http://dx.doi.org/10.1016/j.chemosphere.2015.02.009 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25732633 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 127 2015 214-221 |
allfields_unstemmed |
10.1016/j.chemosphere.2015.02.009 doi PQ20160617 (DE-627)OLC196306030X (DE-599)GBVOLC196306030X (PRQ)c1919-9050898f33cbd758985aadd0e3a7967438cc2cc68c4240b683d50cdb650945b00 (KEY)0012464820150000127000000214mercurymethylationinsedimentsofabrazilianmangroveu DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl de Oliveira, Diana Ciannella Martins verfasserin aut Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Geologic Sediments - chemistry Avicennia - growth & development Plant Leaves - chemistry Plant Roots - chemistry Avicennia - chemistry Mercury - analysis Poaceae - growth & development Poaceae - chemistry Methylmercury Compounds - analysis Plant Roots - growth & development Correia, Raquel Rose Silva oth Marinho, Claudio Cardoso oth Guimarães, Jean Remy Davée oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 127(2015), Seite 214-221 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:127 year:2015 pages:214-221 http://dx.doi.org/10.1016/j.chemosphere.2015.02.009 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25732633 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 127 2015 214-221 |
allfieldsGer |
10.1016/j.chemosphere.2015.02.009 doi PQ20160617 (DE-627)OLC196306030X (DE-599)GBVOLC196306030X (PRQ)c1919-9050898f33cbd758985aadd0e3a7967438cc2cc68c4240b683d50cdb650945b00 (KEY)0012464820150000127000000214mercurymethylationinsedimentsofabrazilianmangroveu DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl de Oliveira, Diana Ciannella Martins verfasserin aut Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Geologic Sediments - chemistry Avicennia - growth & development Plant Leaves - chemistry Plant Roots - chemistry Avicennia - chemistry Mercury - analysis Poaceae - growth & development Poaceae - chemistry Methylmercury Compounds - analysis Plant Roots - growth & development Correia, Raquel Rose Silva oth Marinho, Claudio Cardoso oth Guimarães, Jean Remy Davée oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 127(2015), Seite 214-221 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:127 year:2015 pages:214-221 http://dx.doi.org/10.1016/j.chemosphere.2015.02.009 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25732633 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 127 2015 214-221 |
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10.1016/j.chemosphere.2015.02.009 doi PQ20160617 (DE-627)OLC196306030X (DE-599)GBVOLC196306030X (PRQ)c1919-9050898f33cbd758985aadd0e3a7967438cc2cc68c4240b683d50cdb650945b00 (KEY)0012464820150000127000000214mercurymethylationinsedimentsofabrazilianmangroveu DE-627 ger DE-627 rakwb eng 333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl de Oliveira, Diana Ciannella Martins verfasserin aut Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. Nutzungsrecht: Copyright © 2015 Elsevier Ltd. All rights reserved. Geologic Sediments - chemistry Avicennia - growth & development Plant Leaves - chemistry Plant Roots - chemistry Avicennia - chemistry Mercury - analysis Poaceae - growth & development Poaceae - chemistry Methylmercury Compounds - analysis Plant Roots - growth & development Correia, Raquel Rose Silva oth Marinho, Claudio Cardoso oth Guimarães, Jean Remy Davée oth Enthalten in Chemosphere Kidlington, Oxford : Elsevier Science, 1972 127(2015), Seite 214-221 (DE-627)129288586 (DE-600)120089-6 (DE-576)014470187 0045-6535 nnns volume:127 year:2015 pages:214-221 http://dx.doi.org/10.1016/j.chemosphere.2015.02.009 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25732633 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO GBV_ILN_21 GBV_ILN_70 GBV_ILN_4012 AR 10100 38.32 AVZ 35.00 AVZ AR 127 2015 214-221 |
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de Oliveira, Diana Ciannella Martins @@aut@@ Correia, Raquel Rose Silva @@oth@@ Marinho, Claudio Cardoso @@oth@@ Guimarães, Jean Remy Davée @@oth@@ |
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de Oliveira, Diana Ciannella Martins |
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333.7 DNB AR 10100 AVZ rvk 38.32 bkl 35.00 bkl Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities Geologic Sediments - chemistry Avicennia - growth & development Plant Leaves - chemistry Plant Roots - chemistry Avicennia - chemistry Mercury - analysis Poaceae - growth & development Poaceae - chemistry Methylmercury Compounds - analysis Plant Roots - growth & development |
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Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities |
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Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities |
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mercury methylation in sediments of a brazilian mangrove under different vegetation covers and salinities |
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Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities |
abstract |
The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. |
abstractGer |
The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. |
abstract_unstemmed |
The presence and formation of methylmercury (MMHg), a highly toxic form of Hg, in mangrove ecosystems is poorly studied. Therefore the aim of this study was to evaluate mercury methylation potentials in sediment, litter and root samples (Avicennia shaueriana and Spartina alterniflora) from different regions of a mangrove ecosystem, as well as the influence of salinity on methylation. Sediment was sampled under different depths and in mangrove regions with different plant covers and salinities. All samples were incubated with (203)Hg and MM(203)Hg was extracted and measured by liquid scintillation. MMHg was formed in all samples and sites tested including plant roots and litter. Higher Hg methylation was found in the superficial fraction of sediments (0.47-7.82%). Infralittoral sandy sediment had low MMHg formation (0.44-1.61%). Sediment under Rhizophora mangle had lower MMHg formation (0.018-2.23%) than under A. shaueriana (0.2-4.63%) and Laguncularia racemosa (0.08-7.82). MMHg formation in sediment tended to increase with salinity but the differences were not significant. Therefore, MMHg formation occurs in different sites of mangrove ecosystems and may be an important threat that requires further study. |
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title_short |
Mercury methylation in sediments of a Brazilian mangrove under different vegetation covers and salinities |
url |
http://dx.doi.org/10.1016/j.chemosphere.2015.02.009 http://www.ncbi.nlm.nih.gov/pubmed/25732633 |
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Correia, Raquel Rose Silva Marinho, Claudio Cardoso Guimarães, Jean Remy Davée |
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