U.S. Department of EnergyOffice of Scientific and Technical Information
Hydrogen Peroxide Detection in Groundwater at Rifle, Colorado
Abstract
We here present evidence for the unrecognized and light-independent generation of H2O2 in groundwater of an alluvial aquifer adjacent to the Colorado River near Rifle, CO. In situ detection using a sensitive chemiluminescent method suggests H2O2 concentrations ranging from lower than the detection limit (< 1 nM) to 54 nM along the vertical profiles obtained at various locations across the aquifer. Our results suggest dark formation of H2O2 is more likely to occur in transitional redox environments where reduced elements (e.g., reduced metals and NOM) meet oxygen, such as oxic-anoxic interfaces. Due to its transient nature, the widespread presence of H2O2 in groundwater suggests the existence of a balance between H2O2 sources and sinks, which potentially involves a cascade of various biogeochemically important processes that could have significant impacts on metal/nutrient cycling in groundwater-dependent ecosystems, such as wetlands and springs. More importantly, our results demonstrate that reactive oxygen species are not only widespread in oceanic and atmospheric systems, but also in the subsurface domain, possibly the least understood component of biogeochemical cycles.
- Authors:
- Publication Date:
- DOE Contract Number:
- DEAC0205CH11231
- Research Org.:
- Watershed Functionality Scientific Focus Area
- Sponsoring Org.:
- U.S. Department of Energy Office of Science Office of Biological and Environmental Research
- Subject:
- 54 ENVIRONMENTAL SCIENCES
- OSTI Identifier:
- 1508395
- DOI:
- https://doi.org/10.21952/WTR/1508395
Citation Formats
Davis, James, Nico, Peter, and Yuan, Xiu. Hydrogen Peroxide Detection in Groundwater at Rifle, Colorado. United States: N. p., 2019.
Web. doi:10.21952/WTR/1508395.
Davis, James, Nico, Peter, & Yuan, Xiu. Hydrogen Peroxide Detection in Groundwater at Rifle, Colorado. United States. doi:https://doi.org/10.21952/WTR/1508395
Davis, James, Nico, Peter, and Yuan, Xiu. 2019.
"Hydrogen Peroxide Detection in Groundwater at Rifle, Colorado". United States. doi:https://doi.org/10.21952/WTR/1508395. https://www.osti.gov/servlets/purl/1508395. Pub date:Tue Jan 01 00:00:00 EST 2019
@article{osti_1508395,
title = {Hydrogen Peroxide Detection in Groundwater at Rifle, Colorado},
author = {Davis, James and Nico, Peter and Yuan, Xiu},
abstractNote = {We here present evidence for the unrecognized and light-independent generation of H2O2 in groundwater of an alluvial aquifer adjacent to the Colorado River near Rifle, CO. In situ detection using a sensitive chemiluminescent method suggests H2O2 concentrations ranging from lower than the detection limit (< 1 nM) to 54 nM along the vertical profiles obtained at various locations across the aquifer. Our results suggest dark formation of H2O2 is more likely to occur in transitional redox environments where reduced elements (e.g., reduced metals and NOM) meet oxygen, such as oxic-anoxic interfaces. Due to its transient nature, the widespread presence of H2O2 in groundwater suggests the existence of a balance between H2O2 sources and sinks, which potentially involves a cascade of various biogeochemically important processes that could have significant impacts on metal/nutrient cycling in groundwater-dependent ecosystems, such as wetlands and springs. More importantly, our results demonstrate that reactive oxygen species are not only widespread in oceanic and atmospheric systems, but also in the subsurface domain, possibly the least understood component of biogeochemical cycles.},
doi = {10.21952/WTR/1508395},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2019},
month = {Tue Jan 01 00:00:00 EST 2019}
}