Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light
Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation thro...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Jardim, Wilson F. [verfasserIn] Bisinoti, Márcia Cristina [verfasserIn] Fadini, Pedro Sérgio [verfasserIn] da Silva, Gilmar Silvério [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2009 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Aquatic geochemistry - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1995, 16(2009), 2 vom: 18. Dez., Seite 267-278 |
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| Übergeordnetes Werk: |
volume:16 ; year:2009 ; number:2 ; day:18 ; month:12 ; pages:267-278 |
| Links: |
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| DOI / URN: |
10.1007/s10498-009-9086-z |
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| Katalog-ID: |
SPR010512012 |
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| 520 | |a Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. | ||
| 650 | 4 | |a Amazon |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Mercury |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Redox chemistry |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Negro river |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Solar light |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Bisinoti, Márcia Cristina |e verfasserin |4 aut | |
| 700 | 1 | |a Fadini, Pedro Sérgio |e verfasserin |4 aut | |
| 700 | 1 | |a da Silva, Gilmar Silvério |e verfasserin |4 aut | |
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10.1007/s10498-009-9086-z doi (DE-627)SPR010512012 (SPR)s10498-009-9086-z-e DE-627 ger DE-627 rakwb eng 550 ASE 38.32 bkl Jardim, Wilson F. verfasserin aut Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. Amazon (dpeaa)DE-He213 Mercury (dpeaa)DE-He213 Redox chemistry (dpeaa)DE-He213 Negro river (dpeaa)DE-He213 Solar light (dpeaa)DE-He213 Bisinoti, Márcia Cristina verfasserin aut Fadini, Pedro Sérgio verfasserin aut da Silva, Gilmar Silvério verfasserin aut Enthalten in Aquatic geochemistry Dordrecht [u.a.] : Springer Science + Business Media B.V, 1995 16(2009), 2 vom: 18. Dez., Seite 267-278 (DE-627)270935037 (DE-600)1478538-9 1573-1421 nnns volume:16 year:2009 number:2 day:18 month:12 pages:267-278 https://dx.doi.org/10.1007/s10498-009-9086-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-GGO SSG-OLC-ASE SSG-OLC-PHA SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.32 ASE AR 16 2009 2 18 12 267-278 |
| spelling |
10.1007/s10498-009-9086-z doi (DE-627)SPR010512012 (SPR)s10498-009-9086-z-e DE-627 ger DE-627 rakwb eng 550 ASE 38.32 bkl Jardim, Wilson F. verfasserin aut Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. Amazon (dpeaa)DE-He213 Mercury (dpeaa)DE-He213 Redox chemistry (dpeaa)DE-He213 Negro river (dpeaa)DE-He213 Solar light (dpeaa)DE-He213 Bisinoti, Márcia Cristina verfasserin aut Fadini, Pedro Sérgio verfasserin aut da Silva, Gilmar Silvério verfasserin aut Enthalten in Aquatic geochemistry Dordrecht [u.a.] : Springer Science + Business Media B.V, 1995 16(2009), 2 vom: 18. Dez., Seite 267-278 (DE-627)270935037 (DE-600)1478538-9 1573-1421 nnns volume:16 year:2009 number:2 day:18 month:12 pages:267-278 https://dx.doi.org/10.1007/s10498-009-9086-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-GGO SSG-OLC-ASE SSG-OLC-PHA SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.32 ASE AR 16 2009 2 18 12 267-278 |
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10.1007/s10498-009-9086-z doi (DE-627)SPR010512012 (SPR)s10498-009-9086-z-e DE-627 ger DE-627 rakwb eng 550 ASE 38.32 bkl Jardim, Wilson F. verfasserin aut Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. Amazon (dpeaa)DE-He213 Mercury (dpeaa)DE-He213 Redox chemistry (dpeaa)DE-He213 Negro river (dpeaa)DE-He213 Solar light (dpeaa)DE-He213 Bisinoti, Márcia Cristina verfasserin aut Fadini, Pedro Sérgio verfasserin aut da Silva, Gilmar Silvério verfasserin aut Enthalten in Aquatic geochemistry Dordrecht [u.a.] : Springer Science + Business Media B.V, 1995 16(2009), 2 vom: 18. Dez., Seite 267-278 (DE-627)270935037 (DE-600)1478538-9 1573-1421 nnns volume:16 year:2009 number:2 day:18 month:12 pages:267-278 https://dx.doi.org/10.1007/s10498-009-9086-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-GGO SSG-OLC-ASE SSG-OLC-PHA SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.32 ASE AR 16 2009 2 18 12 267-278 |
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10.1007/s10498-009-9086-z doi (DE-627)SPR010512012 (SPR)s10498-009-9086-z-e DE-627 ger DE-627 rakwb eng 550 ASE 38.32 bkl Jardim, Wilson F. verfasserin aut Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. Amazon (dpeaa)DE-He213 Mercury (dpeaa)DE-He213 Redox chemistry (dpeaa)DE-He213 Negro river (dpeaa)DE-He213 Solar light (dpeaa)DE-He213 Bisinoti, Márcia Cristina verfasserin aut Fadini, Pedro Sérgio verfasserin aut da Silva, Gilmar Silvério verfasserin aut Enthalten in Aquatic geochemistry Dordrecht [u.a.] : Springer Science + Business Media B.V, 1995 16(2009), 2 vom: 18. Dez., Seite 267-278 (DE-627)270935037 (DE-600)1478538-9 1573-1421 nnns volume:16 year:2009 number:2 day:18 month:12 pages:267-278 https://dx.doi.org/10.1007/s10498-009-9086-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-GGO SSG-OLC-ASE SSG-OLC-PHA SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.32 ASE AR 16 2009 2 18 12 267-278 |
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10.1007/s10498-009-9086-z doi (DE-627)SPR010512012 (SPR)s10498-009-9086-z-e DE-627 ger DE-627 rakwb eng 550 ASE 38.32 bkl Jardim, Wilson F. verfasserin aut Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light 2009 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. Amazon (dpeaa)DE-He213 Mercury (dpeaa)DE-He213 Redox chemistry (dpeaa)DE-He213 Negro river (dpeaa)DE-He213 Solar light (dpeaa)DE-He213 Bisinoti, Márcia Cristina verfasserin aut Fadini, Pedro Sérgio verfasserin aut da Silva, Gilmar Silvério verfasserin aut Enthalten in Aquatic geochemistry Dordrecht [u.a.] : Springer Science + Business Media B.V, 1995 16(2009), 2 vom: 18. Dez., Seite 267-278 (DE-627)270935037 (DE-600)1478538-9 1573-1421 nnns volume:16 year:2009 number:2 day:18 month:12 pages:267-278 https://dx.doi.org/10.1007/s10498-009-9086-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-GGO SSG-OLC-ASE SSG-OLC-PHA SSG-OPC-GGO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.32 ASE AR 16 2009 2 18 12 267-278 |
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Enthalten in Aquatic geochemistry 16(2009), 2 vom: 18. Dez., Seite 267-278 volume:16 year:2009 number:2 day:18 month:12 pages:267-278 |
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Amazon Mercury Redox chemistry Negro river Solar light |
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Jardim, Wilson F. @@aut@@ Bisinoti, Márcia Cristina @@aut@@ Fadini, Pedro Sérgio @@aut@@ da Silva, Gilmar Silvério @@aut@@ |
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These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Amazon</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mercury</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Redox chemistry</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Negro river</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Solar light</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bisinoti, Márcia Cristina</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fadini, Pedro Sérgio</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">da Silva, Gilmar Silvério</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Aquatic geochemistry</subfield><subfield code="d">Dordrecht [u.a.] : Springer Science + Business Media B.V, 1995</subfield><subfield code="g">16(2009), 2 vom: 18. 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Jardim, Wilson F. |
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Jardim, Wilson F. ddc 550 bkl 38.32 misc Amazon misc Mercury misc Redox chemistry misc Negro river misc Solar light Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light |
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550 ASE 38.32 bkl Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light Amazon (dpeaa)DE-He213 Mercury (dpeaa)DE-He213 Redox chemistry (dpeaa)DE-He213 Negro river (dpeaa)DE-He213 Solar light (dpeaa)DE-He213 |
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Jardim, Wilson F. Bisinoti, Márcia Cristina Fadini, Pedro Sérgio da Silva, Gilmar Silvério |
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mercury redox chemistry in the negro river basin, amazon: the role of organic matter and solar light |
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Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light |
| abstract |
Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. |
| abstractGer |
Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. |
| abstract_unstemmed |
Abstract Pristine water bodies in the Negro River basin, Brazilian Amazon, show relatively high concentrations of mercury. These waters are characterized by acidic pH, low concentrations of suspended solids, and high amounts of dissolved organic matter and are exposed to intense solar radiation throughout the year. This unique environment creates a very dynamic redox chemistry affecting the mobility of mercury due to the formation of the dissolved elemental species ($ Hg^{0} $). It has been shown that in this so-called black water, labile organic matter from flooded forest is the major scavenger of photogenerated $ H_{2} %$ O_{2} $. In the absence of hydrogen peroxide, these black waters lose their ability to oxidize $ Hg^{0} $ to $ Hg^{2+} $, thus increasing $ Hg^{0} $ evasion across the water/atmosphere interface, with average night time values of 3.80 pmol $ m^{−2} $ $ h^{−1} $. When the dry period starts, labile organic matter inputs gradually diminish, allowing the increasing concentration of $ H_{2} %$ O_{2} $ to re-establish oxidative water conditions, inhibiting the metal flux across the water/atmosphere interface and contributing to mercury accumulation in the water column. |
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| container_issue |
2 |
| title_short |
Mercury Redox Chemistry in the Negro River Basin, Amazon: The Role of Organic Matter and Solar Light |
| url |
https://dx.doi.org/10.1007/s10498-009-9086-z |
| remote_bool |
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| author2 |
Bisinoti, Márcia Cristina Fadini, Pedro Sérgio da Silva, Gilmar Silvério |
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| doi_str |
10.1007/s10498-009-9086-z |
| up_date |
2024-07-03T16:36:14.329Z |
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| score |
7.400139 |