Influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater
Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater...
Ausführliche Beschreibung
Autor*in: |
Kieber, Robert J. [verfasserIn] |
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Format: |
Artikel |
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Sprache: |
Englisch |
Erschienen: |
2009 |
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Schlagwörter: |
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Anmerkung: |
© Springer Science+Business Media B.V. 2010 |
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Übergeordnetes Werk: |
Enthalten in: Journal of atmospheric chemistry - Springer Netherlands, 1983, 64(2009), 2-3 vom: Dez., Seite 149-158 |
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Übergeordnetes Werk: |
volume:64 ; year:2009 ; number:2-3 ; month:12 ; pages:149-158 |
Links: |
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DOI / URN: |
10.1007/s10874-010-9174-x |
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Katalog-ID: |
OLC2061778895 |
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520 | |a Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. | ||
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700 | 1 | |a Southwell, Melissa W. |4 aut | |
700 | 1 | |a Avery, G. Brooks |4 aut | |
700 | 1 | |a Willey, Joan D. |4 aut | |
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10.1007/s10874-010-9174-x doi (DE-627)OLC2061778895 (DE-He213)s10874-010-9174-x-p DE-627 ger DE-627 rakwb eng 550 540 VZ Kieber, Robert J. verfasserin aut Influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. Hydrogen peroxide Rainwater Photochemistry Smith, Jeremy aut Mullaugh, Katherine M. aut Southwell, Melissa W. aut Avery, G. Brooks aut Willey, Joan D. aut Enthalten in Journal of atmospheric chemistry Springer Netherlands, 1983 64(2009), 2-3 vom: Dez., Seite 149-158 (DE-627)130612650 (DE-600)793876-7 (DE-576)016123026 0167-7764 nnns volume:64 year:2009 number:2-3 month:12 pages:149-158 https://doi.org/10.1007/s10874-010-9174-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_24 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_601 GBV_ILN_2012 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 AR 64 2009 2-3 12 149-158 |
spelling |
10.1007/s10874-010-9174-x doi (DE-627)OLC2061778895 (DE-He213)s10874-010-9174-x-p DE-627 ger DE-627 rakwb eng 550 540 VZ Kieber, Robert J. verfasserin aut Influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. Hydrogen peroxide Rainwater Photochemistry Smith, Jeremy aut Mullaugh, Katherine M. aut Southwell, Melissa W. aut Avery, G. Brooks aut Willey, Joan D. aut Enthalten in Journal of atmospheric chemistry Springer Netherlands, 1983 64(2009), 2-3 vom: Dez., Seite 149-158 (DE-627)130612650 (DE-600)793876-7 (DE-576)016123026 0167-7764 nnns volume:64 year:2009 number:2-3 month:12 pages:149-158 https://doi.org/10.1007/s10874-010-9174-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_24 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_601 GBV_ILN_2012 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 AR 64 2009 2-3 12 149-158 |
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10.1007/s10874-010-9174-x doi (DE-627)OLC2061778895 (DE-He213)s10874-010-9174-x-p DE-627 ger DE-627 rakwb eng 550 540 VZ Kieber, Robert J. verfasserin aut Influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. Hydrogen peroxide Rainwater Photochemistry Smith, Jeremy aut Mullaugh, Katherine M. aut Southwell, Melissa W. aut Avery, G. Brooks aut Willey, Joan D. aut Enthalten in Journal of atmospheric chemistry Springer Netherlands, 1983 64(2009), 2-3 vom: Dez., Seite 149-158 (DE-627)130612650 (DE-600)793876-7 (DE-576)016123026 0167-7764 nnns volume:64 year:2009 number:2-3 month:12 pages:149-158 https://doi.org/10.1007/s10874-010-9174-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_24 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_601 GBV_ILN_2012 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 AR 64 2009 2-3 12 149-158 |
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10.1007/s10874-010-9174-x doi (DE-627)OLC2061778895 (DE-He213)s10874-010-9174-x-p DE-627 ger DE-627 rakwb eng 550 540 VZ Kieber, Robert J. verfasserin aut Influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. Hydrogen peroxide Rainwater Photochemistry Smith, Jeremy aut Mullaugh, Katherine M. aut Southwell, Melissa W. aut Avery, G. Brooks aut Willey, Joan D. aut Enthalten in Journal of atmospheric chemistry Springer Netherlands, 1983 64(2009), 2-3 vom: Dez., Seite 149-158 (DE-627)130612650 (DE-600)793876-7 (DE-576)016123026 0167-7764 nnns volume:64 year:2009 number:2-3 month:12 pages:149-158 https://doi.org/10.1007/s10874-010-9174-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_24 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_601 GBV_ILN_2012 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 AR 64 2009 2-3 12 149-158 |
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10.1007/s10874-010-9174-x doi (DE-627)OLC2061778895 (DE-He213)s10874-010-9174-x-p DE-627 ger DE-627 rakwb eng 550 540 VZ Kieber, Robert J. verfasserin aut Influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater 2009 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. Hydrogen peroxide Rainwater Photochemistry Smith, Jeremy aut Mullaugh, Katherine M. aut Southwell, Melissa W. aut Avery, G. Brooks aut Willey, Joan D. aut Enthalten in Journal of atmospheric chemistry Springer Netherlands, 1983 64(2009), 2-3 vom: Dez., Seite 149-158 (DE-627)130612650 (DE-600)793876-7 (DE-576)016123026 0167-7764 nnns volume:64 year:2009 number:2-3 month:12 pages:149-158 https://doi.org/10.1007/s10874-010-9174-x lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-CHE SSG-OLC-GEO SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_24 GBV_ILN_62 GBV_ILN_70 GBV_ILN_130 GBV_ILN_601 GBV_ILN_2012 GBV_ILN_4012 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 AR 64 2009 2-3 12 149-158 |
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Kieber, Robert J. @@aut@@ Smith, Jeremy @@aut@@ Mullaugh, Katherine M. @@aut@@ Southwell, Melissa W. @@aut@@ Avery, G. Brooks @@aut@@ Willey, Joan D. @@aut@@ |
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influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater |
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Influence of dissolved organic carbon on photochemically mediated cycling of hydrogen peroxide in rainwater |
abstract |
Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. © Springer Science+Business Media B.V. 2010 |
abstractGer |
Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. © Springer Science+Business Media B.V. 2010 |
abstract_unstemmed |
Abstract The influence of sunlight and dissolved organic carbon (DOC) on the photochemically mediated cycling of hydrogen peroxide ($ H_{2} $$ O_{2} $) was investigated in rainwater samples collected in Wilmington, North Carolina USA. Upon exposure to simulated sunlight 14 of 19 authentic rainwater samples exhibited significant decreases in $ H_{2} $$ O_{2} $. The concentration of hydrogen peroxide did not change significantly in organic-free synthetic rainwater spiked with $ H_{2} $$ O_{2} $ in the light or in dark controls suggesting that the loss was not due to direct photolysis or dark mediated reactions. There was a significant correlation between pseudo-first order rate constants of $ H_{2} $$ O_{2} $ decay and initial $ H_{2} $$ O_{2} $ concentrations. There was also a significant correlation between the rate constant and the abundance of DOC suggesting that rainwater organic carbon plays an important role during photolytic decay either via direct reaction or indirectly through production of peroxide reactive species or scavenging of peroxide generating radicals. Several rain samples exhibited an initial increase in $ H_{2} $$ O_{2} $ during the first 2 h of irradiation. These increases were generally small and most likely do not represent a significant input of peroxide in precipitation. The photo-induced destruction of $ H_{2} $$ O_{2} $ is important because it may partly explain the late afternoon decrease of peroxide concentrations observed in earlier field studies and the substantial under saturation (<10%) of this oxidant in rainwater compared with gas phase concentrations. © Springer Science+Business Media B.V. 2010 |
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