Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, Colorado
Abstract The traditionally held assumption that photo-dependent processes are the predominant source of H2O2 in natural waters has been recently questioned by an increrasing body of evidence showing the ubiquitiousness of H2O2 in dark water bodies and in groundwater. In this study, we conducted fiel...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-04171-1 |
| _version_ | 1828138510172815360 |
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| author | Xiu Yuan Tongxu Liu Patricia Fox Amrita Bhattacharyya Dipankar Dwivedi Kenneth H. Williams James A. Davis T. David Waite Peter S. Nico |
| author_facet | Xiu Yuan Tongxu Liu Patricia Fox Amrita Bhattacharyya Dipankar Dwivedi Kenneth H. Williams James A. Davis T. David Waite Peter S. Nico |
| author_sort | Xiu Yuan |
| collection | DOAJ |
| description | Abstract The traditionally held assumption that photo-dependent processes are the predominant source of H2O2 in natural waters has been recently questioned by an increrasing body of evidence showing the ubiquitiousness of H2O2 in dark water bodies and in groundwater. In this study, we conducted field measurement of H2O2 in an intra-meander hyporheic zone and in surface water at East River, CO. On-site detection using a sensitive chemiluminescence method suggests H2O2 concentrations in groundwater ranging from 6 nM (at the most reduced region) to ~ 80 nM (in a locally oxygen-rich area) along the intra-meander transect with a maxima of 186 nM detected in the surface water in an early afternoon, lagging the maximum solar irradiance by ∼ 1.5 h. Our results suggest that the dark profile of H2O2 in the hyporheic zone is closely correlated to local redox gradients, indicating that interactions between various redox sensitive elements could play an essential role. Due to its transient nature, the widespread presence of H2O2 in the hyporheic zone indicates the existence of a sustained balance between H2O2 production and consumption, which potentially involves a relatively rapid succession of various biogeochemically important processes (such as organic matter turnover, metal cycling and contaminant mobilization). More importantly, this study confirmed the occurrence of reactive oxygen species at a subsurface redox transition zone and further support our understanding of redox boundaries on reactive oxygen species generation and as key locations of biogeochemical activity. |
| first_indexed | 2024-04-11T18:36:58Z |
| format | Article |
| id | doaj.art-e6d0d5e8bd12406cb0ef5dbd7a9cb343 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T18:36:58Z |
| publishDate | 2022-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-e6d0d5e8bd12406cb0ef5dbd7a9cb3432022-12-22T04:09:13ZengNature PortfolioScientific Reports2045-23222022-01-0112111010.1038/s41598-021-04171-1Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, ColoradoXiu Yuan0Tongxu Liu1Patricia Fox2Amrita Bhattacharyya3Dipankar Dwivedi4Kenneth H. Williams5James A. Davis6T. David Waite7Peter S. Nico8Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of SciencesGuangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of SciencesEarth and Environmental Sciences, Lawrence Berkeley National LaboratoryEarth and Environmental Sciences, Lawrence Berkeley National LaboratoryEarth and Environmental Sciences, Lawrence Berkeley National LaboratoryEarth and Environmental Sciences, Lawrence Berkeley National LaboratoryEarth and Environmental Sciences, Lawrence Berkeley National LaboratoryWater Research Centre, School of Civil and Environmental Engineering, The University of New South WalesEarth and Environmental Sciences, Lawrence Berkeley National LaboratoryAbstract The traditionally held assumption that photo-dependent processes are the predominant source of H2O2 in natural waters has been recently questioned by an increrasing body of evidence showing the ubiquitiousness of H2O2 in dark water bodies and in groundwater. In this study, we conducted field measurement of H2O2 in an intra-meander hyporheic zone and in surface water at East River, CO. On-site detection using a sensitive chemiluminescence method suggests H2O2 concentrations in groundwater ranging from 6 nM (at the most reduced region) to ~ 80 nM (in a locally oxygen-rich area) along the intra-meander transect with a maxima of 186 nM detected in the surface water in an early afternoon, lagging the maximum solar irradiance by ∼ 1.5 h. Our results suggest that the dark profile of H2O2 in the hyporheic zone is closely correlated to local redox gradients, indicating that interactions between various redox sensitive elements could play an essential role. Due to its transient nature, the widespread presence of H2O2 in the hyporheic zone indicates the existence of a sustained balance between H2O2 production and consumption, which potentially involves a relatively rapid succession of various biogeochemically important processes (such as organic matter turnover, metal cycling and contaminant mobilization). More importantly, this study confirmed the occurrence of reactive oxygen species at a subsurface redox transition zone and further support our understanding of redox boundaries on reactive oxygen species generation and as key locations of biogeochemical activity.https://doi.org/10.1038/s41598-021-04171-1 |
| spellingShingle | Xiu Yuan Tongxu Liu Patricia Fox Amrita Bhattacharyya Dipankar Dwivedi Kenneth H. Williams James A. Davis T. David Waite Peter S. Nico Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, Colorado Scientific Reports |
| title | Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, Colorado |
| title_full | Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, Colorado |
| title_fullStr | Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, Colorado |
| title_full_unstemmed | Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, Colorado |
| title_short | Production of hydrogen peroxide in an intra-meander hyporheic zone at East River, Colorado |
| title_sort | production of hydrogen peroxide in an intra meander hyporheic zone at east river colorado |
| url | https://doi.org/10.1038/s41598-021-04171-1 |
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