Isabelle M. Cozzarelli, Ph.D.
Isabelle Cozzarelli is a Research Hydrologist (Scientist Emerita) with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA.
Dr. Isabelle Cozzarelli retired as a Senior Research Scientist and currently serves as a Scientist Emerita affiliated with the Geology, Energy & Minerals Science Center and the Reston Biogeochemical Processes in Groundwater Laboratory. Isabelle uses a combined field and laboratory experimental approach to investigate biogeochemical processes in shallow groundwater and surface water environments that affect water availability. She uses a multi-disciplinary and multi-scale approach to study processes in environments stressed by anthropogenic inputs of biodegradable carbon, such as crude oil, landfill leachate, and oil and gas wastes.
Professional Experience
2020-present: Research Hydrologist, USGS, Geology, Energy & Minerals Science Center, Reston, VA, USA
2017-2020: Research Hydrologist, USGS Water Mission Area Headquarters, Reston, VA, USA
1985-2017: Research Hydrologist, USGS National Research Program, USGS, Reston, Virginia, USA
1983-1985: Research Assistant, University of Virginia, Charlottesville, Virginia, USA
Education and Certifications
Ph.D. University of Virginia, Environmental Sciences-Geochemistry, 1993
M.S. University of Virginia, Environmental Sciences-Geochemistry, 1986
B.S. University of Rochester, Geomechanics, 1983
Affiliations and Memberships*
2016-present: Adjunct Faculty, Department of Geosciences, Virginia Tech
Honors and Awards
2024: Senior Scientist (ST), Federal Government
2023: Friend of Water-Rock Interaction & Applied Isotope Geochemistry Award, International Association of Geochemistry
2017: USGS Meritorious Service Award
2005: Elected GSA Fellow
2005: USGS Superior Service Award
Science and Products
Filter Total Items: 21
Filter Total Items: 34
Data Sets from the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA (ver. 3.0, March 2020) Data Sets from the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA (ver. 3.0, March 2020)
This version supersedes the previous version of this data release: Trost, J.J., Krall, A.L., Baedecker, M., Cozzarelli, I.M., Herkelrath, W.N., Jaeschke, J.B., and Bekins, B.A., 2018, Historical data sets including inorganic and organic chemistry of water, oil, and sediments, aquifer hydraulic conductivity, and sediment grain size distribution at the National Crude Oil Spill Fate and...
Geochemical Composition of Urban Stormwater Runoff Within the Conterminous United States from Samples Collected in 2016-2017 Geochemical Composition of Urban Stormwater Runoff Within the Conterminous United States from Samples Collected in 2016-2017
These analyses provide the basic geochemical composition of urban stormwater runoff from rainwater/stormwater that does or has the potential to infiltrate groundwater from Green Infrastructure control measures. These measures are able to mimic the natural landscape with engineered designed systems to enhance stormwater infiltration to groundwater.
Chloride in water, metals in sediment and amphibian tissues and amphibian capture information from wetlands in the Williston Basin of Montana and North Dakota, 2015-2017 Chloride in water, metals in sediment and amphibian tissues and amphibian capture information from wetlands in the Williston Basin of Montana and North Dakota, 2015-2017
The data presented includes chloride concentration and specific conductance in surface water collected from 33 wetlands in the Williston Basin of Montana and North Dakota, 2015-2017 as well as count data for three species of amphibians captured at each wetland. Data also includes concentrations of metals in bed sediment and larval amphibians collected from 32 and 12 wetlands...
Historical data sets including inorganic and organic chemistry of water, oil, and sediments, aquifer hydraulic conductivity, and sediment grain size distribution at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minn Historical data sets including inorganic and organic chemistry of water, oil, and sediments, aquifer hydraulic conductivity, and sediment grain size distribution at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minn
This U.S. Geological Survey (USGS) Data Release provides analytical data from samples and measurements completed at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota (Site) between 1984 and 2010. Included are inorganic and organic chemistry data from water, oil, and sediment samples, hydraulic conductivity data from well slug tests, and...
Weathering of Oil in a Surficial Aquifer, Bemidji, MN Weathering of Oil in a Surficial Aquifer, Bemidji, MN
The dataset consists of 30-year percentage depletion calculations, hydrocarbon group compositions, organic carbon mass fractions and hydrocarbon concentrations for 16 locations sampled at the Bemidji (MN) oil spill study site. Also included in the dataset are concentrations for 33 individual volatile hydrocarbons from the aforementioned sampling locations.
Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities
Data supporting "Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities", describing iron reduction experiments, microbial community profiling, and statistical testing of data.
MCHM Degradation Data Release MCHM Degradation Data Release
This USGS data release includes all the data presented in peer-reviewed publication entitled "Degradation of MCHM (4-methylcyclohexanemethanol) in Sediments from Elk River, West Virginia". We conducted experiments on crude MCHM to examine photooxidation or biodegradation. We also assessed the potential of sediments to serve as a long-term source of MCHM and well as the potential for...
Arsenic and Iron data for mass balance calculations to investigate arsenic cycling in a petroleum plume Arsenic and Iron data for mass balance calculations to investigate arsenic cycling in a petroleum plume
Natural attenuation of organic contaminants in groundwater can give rise to a series of complex biogeochemical reactions that release secondary contaminants to groundwater. In a crude oil contaminated aquifer, biodegradation of petroleum hydrocarbons is coupled with the reduction of ferric iron (Fe(III)) hydroxides in aquifer sediments. As a result, naturally occurring arsenic (As)...
Partial release of iron, alkalinity, and oxygen data from Bemidji crude oil site, Minnesota 1993-2016 Partial release of iron, alkalinity, and oxygen data from Bemidji crude oil site, Minnesota 1993-2016
In a crude-oil-contaminated sandy aquifer at the Bemidji site in northern Minnesota, biodegradation of petroleum hydrocarbons resulted in transient increases in magnetic susceptibility under high water table conditions. The magnetic susceptibility subsequently decreased again when the water table dropped. This data set was assembled to illustrate the cause of the magnetic susceptibility...
The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume data release The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume data release
In a crude-oil-contaminated sandy aquifer at the Bemidji site in northern Minnesota, biodegradation of petroleum hydrocarbons has resulted in release of naturally occurring As to groundwater under Fe-reducing conditions. This data set was collected for a study that used chemical extractions of aquifer sediments collected in 1993 and 2011-2014 to evaluate the relationship between Fe and...
Filter Total Items: 117
Biological effects of elevated major ions in surface water contaminated by a produced water from oil production Biological effects of elevated major ions in surface water contaminated by a produced water from oil production
Produced water (PW) from oil and gas extraction processes has been shown to contain elevated concentrations of major ions. The objective of this study was to determine the potential effects of elevated major ions in PW-contaminated surface water on a fish (fathead minnow, Pimephales promelas) and a unionid mussel (fatmucket, Lampsilis siliquoidea) in short-term (7-day) exposures. The...
Authors
Ning Wang, James Kunz, Danielle Cleveland, Jeffery Steevens, Isabelle Cozzarelli
Associations between environmental pollutants and larval amphibians in wetlands contaminated by energy-related brines are potentially mediated by feeding traits Associations between environmental pollutants and larval amphibians in wetlands contaminated by energy-related brines are potentially mediated by feeding traits
Energy production in the Williston Basin, located in the Prairie Pothole Region of central North America, has increased rapidly over the last several decades. Advances in recycling and disposal practices of saline wastewaters (brines) co-produced during energy production have reduced ecological risks, but spills still occur often and legacy practices of releasing brines into the...
Authors
Kelly Smalling, Chauncey Anderson, R. Honeycutt, Isabelle Cozzarelli, Todd Preston, Blake Hossack
Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations
Water and sediment extracts samples were analyzed for extractable hydrocarbons by gas chromatography/mass spectrometry (GC/MS) using an Agilent (Agilent Technologies, Palo Alto, CA, USA) 7890 series GC and 5975 electron ionization (EI) mass selective detector (MSD) operated in scan mode. Agilent ChemStation software was used for data acquisition and analysis (version E.02.00.493 on GC/MS...
Authors
William Orem, Matthew Varonka, Lynn Crosby, Karl Haase, Keith Loftin, Michelle L. Hladik, Denise Akob, Calin Tatu, Adam Mumford, Jeanne Jaeschke, Anne Bates, Tiffani Schell, Isabelle Cozzarelli
Effects of persistent energy-related brine contamination on amphibian abundance in national wildlife refuge wetlands Effects of persistent energy-related brine contamination on amphibian abundance in national wildlife refuge wetlands
To inform sustainable energy development, it is important to understand the ecological effects of historical and current production practices and the persistence of those effects. The Williston Basin is one of North America's largest oil production areas and overlaps the Prairie Pothole Region, an area densely populated with wetlands that provide important wildlife habitat. Although...
Authors
Blake Hossack, Kelly L. Smalling, Chauncey Anderson, Todd Preston, Isabelle Cozzarelli, R. Honeycutt
Regional patterns in the geochemistry of oil-field water, southern San Joaquin Valley, California, USA Regional patterns in the geochemistry of oil-field water, southern San Joaquin Valley, California, USA
Chemical and isotopic data for water co-extracted with hydrocarbons in oil and gas fields are commonly used to examine the source of the formation water and possible impacts on groundwater in areas of oil and gas development. Understanding the geochemical variability of oil-field water could help to evaluate its origin and delineate possible contamination of shallow aquifers in cases...
Authors
Peter McMahon, Justin Kulongoski, Avner Vengosh, Isabelle Cozzarelli, Matthew Landon, Yousif Kharaka, Janice M. Gillespie, Tracy Davis
Toxicity assessment of groundwater contaminated by petroleum hydrocarbons at a well-characterized, aged, crude oil release site Toxicity assessment of groundwater contaminated by petroleum hydrocarbons at a well-characterized, aged, crude oil release site
Management of petroleum-impacted waters by monitored natural attenuation requires an understanding of the toxicology of both the original compounds released and the transformation products formed during natural breakdown. Here, we report data from a groundwater plume consisting of a mixture of crude oil compounds and transformation products in an effort to bridge the gap between...
Authors
Jennifer McGuire, Isabelle Cozzarelli, Barbara Bekins, Hannah Link, Dalma Martinović-Weigelt
Weathering of oil in a surficial aquifer Weathering of oil in a surficial aquifer
The composition of crude oil in a surficial aquifer was determined in two locations at the Bemidji, MN, spill site. The abundances of 71 individual hydrocarbons varied within 16 locations sampled. Little depletion of these hydrocarbons (relative to the pipeline oil) occurred in the first 10 years after the spill, whereas losses of 25% to 85% of the total measured hydrocarbons occurred...
Authors
Mary Baedecker, Robert Eganhouse, Haiping Qi, Isabelle Cozzarelli, Jared Trost, Barbara Bekins
Examining natural attenuation and acute toxicity of petroleum-derived dissolved organic matter with optical spectroscopy Examining natural attenuation and acute toxicity of petroleum-derived dissolved organic matter with optical spectroscopy
Groundwater samples containing petroleum-derived dissolved organic matter (DOMHC) originating from the north oil body within the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, MN, USA were analyzed by optical spectroscopic techniques (i.e., absorbance and fluorescence) to assess relationships that can be used to examine natural attenuation and toxicity...
Authors
David Podgorski, Phoebe Zito, Jennifer McGuire, Dalma Martinovic-Weigelt, Isabelle Cozzarelli, Barbara Bekins, Robert Spencer
Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities
The development of unconventional oil and gas (UOG) resources results in the production of large volumes of wastewater containing a complex mixture of hydraulic fracturing chemical additives and components from the formation. The release of these wastewaters into the environment poses potential risks that are poorly understood. Microbial communities in stream sediments form the base of...
Authors
Adam Mumford, Denise Akob, J. Klinges, Isabelle Cozzarelli
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Science Synthesis, Analysis and Research Program, Toxic Substances Hydrology, Reston Biogeochemical Processes in Groundwater Laboratory, Reston Microbiology Laboratory, Advanced Research Computing (ARC)
A mass balance approach to investigate arsenic cycling in a petroleum plume A mass balance approach to investigate arsenic cycling in a petroleum plume
Natural attenuation of organic contaminants in groundwater can give rise to a series of complex biogeochemical reactions that release secondary contaminants to groundwater. In a crude oil contaminated aquifer, biodegradation of petroleum hydrocarbons is coupled with the reduction of ferric iron (Fe(III)) hydroxides in aquifer sediments. As a result, naturally occurring arsenic (As)...
Authors
Brady Ziegler, Madeline Schreiber, Isabelle Cozzarelli, Ng. Crystal
Degradation of crude 4-MCHM (4-methylcyclohexanemethanol) in sediments from Elk River, West Virginia Degradation of crude 4-MCHM (4-methylcyclohexanemethanol) in sediments from Elk River, West Virginia
In January 2014, approximately 37 800 L of crude 4-methylcyclohexanemethanol (crude MCHM) spilled into the Elk River, West Virginia. To understand the long-term fate of 4-MCHM, we conducted experiments under environmentally relevant conditions to assess the potential for the 2 primary compounds in crude MCHM (1) to undergo biodegradation and (2) for sediments to serve as a long-term...
Authors
Isabelle Cozzarelli, Denise Akob, Mary Baedecker, Tracey Spencer, Jeanne Jaeschke, Darren S. Dunlap, Adam Mumford, Amisha Poret-Peterson, Douglas B. Chambers
The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume
In a crude-oil-contaminated sandy aquifer at the Bemidji site in northern Minnesota, biodegradation of petroleum hydrocarbons has resulted in release of naturally occurring As to groundwater under Fe-reducing conditions. This study used chemical extractions of aquifer sediments collected in 1993 and 2011–2014 to evaluate the relationship between Fe and As in different redox zones (oxic...
Authors
Brady Ziegler, Madeline Schreiber, Isabelle Cozzarelli
Filter Total Items: 13
Science and Products
Filter Total Items: 21
Filter Total Items: 34
Data Sets from the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA (ver. 3.0, March 2020) Data Sets from the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA (ver. 3.0, March 2020)
This version supersedes the previous version of this data release: Trost, J.J., Krall, A.L., Baedecker, M., Cozzarelli, I.M., Herkelrath, W.N., Jaeschke, J.B., and Bekins, B.A., 2018, Historical data sets including inorganic and organic chemistry of water, oil, and sediments, aquifer hydraulic conductivity, and sediment grain size distribution at the National Crude Oil Spill Fate and...
Geochemical Composition of Urban Stormwater Runoff Within the Conterminous United States from Samples Collected in 2016-2017 Geochemical Composition of Urban Stormwater Runoff Within the Conterminous United States from Samples Collected in 2016-2017
These analyses provide the basic geochemical composition of urban stormwater runoff from rainwater/stormwater that does or has the potential to infiltrate groundwater from Green Infrastructure control measures. These measures are able to mimic the natural landscape with engineered designed systems to enhance stormwater infiltration to groundwater.
Chloride in water, metals in sediment and amphibian tissues and amphibian capture information from wetlands in the Williston Basin of Montana and North Dakota, 2015-2017 Chloride in water, metals in sediment and amphibian tissues and amphibian capture information from wetlands in the Williston Basin of Montana and North Dakota, 2015-2017
The data presented includes chloride concentration and specific conductance in surface water collected from 33 wetlands in the Williston Basin of Montana and North Dakota, 2015-2017 as well as count data for three species of amphibians captured at each wetland. Data also includes concentrations of metals in bed sediment and larval amphibians collected from 32 and 12 wetlands...
Historical data sets including inorganic and organic chemistry of water, oil, and sediments, aquifer hydraulic conductivity, and sediment grain size distribution at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minn Historical data sets including inorganic and organic chemistry of water, oil, and sediments, aquifer hydraulic conductivity, and sediment grain size distribution at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minn
This U.S. Geological Survey (USGS) Data Release provides analytical data from samples and measurements completed at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota (Site) between 1984 and 2010. Included are inorganic and organic chemistry data from water, oil, and sediment samples, hydraulic conductivity data from well slug tests, and...
Weathering of Oil in a Surficial Aquifer, Bemidji, MN Weathering of Oil in a Surficial Aquifer, Bemidji, MN
The dataset consists of 30-year percentage depletion calculations, hydrocarbon group compositions, organic carbon mass fractions and hydrocarbon concentrations for 16 locations sampled at the Bemidji (MN) oil spill study site. Also included in the dataset are concentrations for 33 individual volatile hydrocarbons from the aforementioned sampling locations.
Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities
Data supporting "Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities", describing iron reduction experiments, microbial community profiling, and statistical testing of data.
MCHM Degradation Data Release MCHM Degradation Data Release
This USGS data release includes all the data presented in peer-reviewed publication entitled "Degradation of MCHM (4-methylcyclohexanemethanol) in Sediments from Elk River, West Virginia". We conducted experiments on crude MCHM to examine photooxidation or biodegradation. We also assessed the potential of sediments to serve as a long-term source of MCHM and well as the potential for...
Arsenic and Iron data for mass balance calculations to investigate arsenic cycling in a petroleum plume Arsenic and Iron data for mass balance calculations to investigate arsenic cycling in a petroleum plume
Natural attenuation of organic contaminants in groundwater can give rise to a series of complex biogeochemical reactions that release secondary contaminants to groundwater. In a crude oil contaminated aquifer, biodegradation of petroleum hydrocarbons is coupled with the reduction of ferric iron (Fe(III)) hydroxides in aquifer sediments. As a result, naturally occurring arsenic (As)...
Partial release of iron, alkalinity, and oxygen data from Bemidji crude oil site, Minnesota 1993-2016 Partial release of iron, alkalinity, and oxygen data from Bemidji crude oil site, Minnesota 1993-2016
In a crude-oil-contaminated sandy aquifer at the Bemidji site in northern Minnesota, biodegradation of petroleum hydrocarbons resulted in transient increases in magnetic susceptibility under high water table conditions. The magnetic susceptibility subsequently decreased again when the water table dropped. This data set was assembled to illustrate the cause of the magnetic susceptibility...
The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume data release The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume data release
In a crude-oil-contaminated sandy aquifer at the Bemidji site in northern Minnesota, biodegradation of petroleum hydrocarbons has resulted in release of naturally occurring As to groundwater under Fe-reducing conditions. This data set was collected for a study that used chemical extractions of aquifer sediments collected in 1993 and 2011-2014 to evaluate the relationship between Fe and...
Filter Total Items: 117
Biological effects of elevated major ions in surface water contaminated by a produced water from oil production Biological effects of elevated major ions in surface water contaminated by a produced water from oil production
Produced water (PW) from oil and gas extraction processes has been shown to contain elevated concentrations of major ions. The objective of this study was to determine the potential effects of elevated major ions in PW-contaminated surface water on a fish (fathead minnow, Pimephales promelas) and a unionid mussel (fatmucket, Lampsilis siliquoidea) in short-term (7-day) exposures. The...
Authors
Ning Wang, James Kunz, Danielle Cleveland, Jeffery Steevens, Isabelle Cozzarelli
Associations between environmental pollutants and larval amphibians in wetlands contaminated by energy-related brines are potentially mediated by feeding traits Associations between environmental pollutants and larval amphibians in wetlands contaminated by energy-related brines are potentially mediated by feeding traits
Energy production in the Williston Basin, located in the Prairie Pothole Region of central North America, has increased rapidly over the last several decades. Advances in recycling and disposal practices of saline wastewaters (brines) co-produced during energy production have reduced ecological risks, but spills still occur often and legacy practices of releasing brines into the...
Authors
Kelly Smalling, Chauncey Anderson, R. Honeycutt, Isabelle Cozzarelli, Todd Preston, Blake Hossack
Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations
Water and sediment extracts samples were analyzed for extractable hydrocarbons by gas chromatography/mass spectrometry (GC/MS) using an Agilent (Agilent Technologies, Palo Alto, CA, USA) 7890 series GC and 5975 electron ionization (EI) mass selective detector (MSD) operated in scan mode. Agilent ChemStation software was used for data acquisition and analysis (version E.02.00.493 on GC/MS...
Authors
William Orem, Matthew Varonka, Lynn Crosby, Karl Haase, Keith Loftin, Michelle L. Hladik, Denise Akob, Calin Tatu, Adam Mumford, Jeanne Jaeschke, Anne Bates, Tiffani Schell, Isabelle Cozzarelli
Effects of persistent energy-related brine contamination on amphibian abundance in national wildlife refuge wetlands Effects of persistent energy-related brine contamination on amphibian abundance in national wildlife refuge wetlands
To inform sustainable energy development, it is important to understand the ecological effects of historical and current production practices and the persistence of those effects. The Williston Basin is one of North America's largest oil production areas and overlaps the Prairie Pothole Region, an area densely populated with wetlands that provide important wildlife habitat. Although...
Authors
Blake Hossack, Kelly L. Smalling, Chauncey Anderson, Todd Preston, Isabelle Cozzarelli, R. Honeycutt
Regional patterns in the geochemistry of oil-field water, southern San Joaquin Valley, California, USA Regional patterns in the geochemistry of oil-field water, southern San Joaquin Valley, California, USA
Chemical and isotopic data for water co-extracted with hydrocarbons in oil and gas fields are commonly used to examine the source of the formation water and possible impacts on groundwater in areas of oil and gas development. Understanding the geochemical variability of oil-field water could help to evaluate its origin and delineate possible contamination of shallow aquifers in cases...
Authors
Peter McMahon, Justin Kulongoski, Avner Vengosh, Isabelle Cozzarelli, Matthew Landon, Yousif Kharaka, Janice M. Gillespie, Tracy Davis
Toxicity assessment of groundwater contaminated by petroleum hydrocarbons at a well-characterized, aged, crude oil release site Toxicity assessment of groundwater contaminated by petroleum hydrocarbons at a well-characterized, aged, crude oil release site
Management of petroleum-impacted waters by monitored natural attenuation requires an understanding of the toxicology of both the original compounds released and the transformation products formed during natural breakdown. Here, we report data from a groundwater plume consisting of a mixture of crude oil compounds and transformation products in an effort to bridge the gap between...
Authors
Jennifer McGuire, Isabelle Cozzarelli, Barbara Bekins, Hannah Link, Dalma Martinović-Weigelt
Weathering of oil in a surficial aquifer Weathering of oil in a surficial aquifer
The composition of crude oil in a surficial aquifer was determined in two locations at the Bemidji, MN, spill site. The abundances of 71 individual hydrocarbons varied within 16 locations sampled. Little depletion of these hydrocarbons (relative to the pipeline oil) occurred in the first 10 years after the spill, whereas losses of 25% to 85% of the total measured hydrocarbons occurred...
Authors
Mary Baedecker, Robert Eganhouse, Haiping Qi, Isabelle Cozzarelli, Jared Trost, Barbara Bekins
Examining natural attenuation and acute toxicity of petroleum-derived dissolved organic matter with optical spectroscopy Examining natural attenuation and acute toxicity of petroleum-derived dissolved organic matter with optical spectroscopy
Groundwater samples containing petroleum-derived dissolved organic matter (DOMHC) originating from the north oil body within the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, MN, USA were analyzed by optical spectroscopic techniques (i.e., absorbance and fluorescence) to assess relationships that can be used to examine natural attenuation and toxicity...
Authors
David Podgorski, Phoebe Zito, Jennifer McGuire, Dalma Martinovic-Weigelt, Isabelle Cozzarelli, Barbara Bekins, Robert Spencer
Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities Common hydraulic fracturing fluid additives alter the structure and function of anaerobic microbial communities
The development of unconventional oil and gas (UOG) resources results in the production of large volumes of wastewater containing a complex mixture of hydraulic fracturing chemical additives and components from the formation. The release of these wastewaters into the environment poses potential risks that are poorly understood. Microbial communities in stream sediments form the base of...
Authors
Adam Mumford, Denise Akob, J. Klinges, Isabelle Cozzarelli
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Science Synthesis, Analysis and Research Program, Toxic Substances Hydrology, Reston Biogeochemical Processes in Groundwater Laboratory, Reston Microbiology Laboratory, Advanced Research Computing (ARC)
A mass balance approach to investigate arsenic cycling in a petroleum plume A mass balance approach to investigate arsenic cycling in a petroleum plume
Natural attenuation of organic contaminants in groundwater can give rise to a series of complex biogeochemical reactions that release secondary contaminants to groundwater. In a crude oil contaminated aquifer, biodegradation of petroleum hydrocarbons is coupled with the reduction of ferric iron (Fe(III)) hydroxides in aquifer sediments. As a result, naturally occurring arsenic (As)...
Authors
Brady Ziegler, Madeline Schreiber, Isabelle Cozzarelli, Ng. Crystal
Degradation of crude 4-MCHM (4-methylcyclohexanemethanol) in sediments from Elk River, West Virginia Degradation of crude 4-MCHM (4-methylcyclohexanemethanol) in sediments from Elk River, West Virginia
In January 2014, approximately 37 800 L of crude 4-methylcyclohexanemethanol (crude MCHM) spilled into the Elk River, West Virginia. To understand the long-term fate of 4-MCHM, we conducted experiments under environmentally relevant conditions to assess the potential for the 2 primary compounds in crude MCHM (1) to undergo biodegradation and (2) for sediments to serve as a long-term...
Authors
Isabelle Cozzarelli, Denise Akob, Mary Baedecker, Tracey Spencer, Jeanne Jaeschke, Darren S. Dunlap, Adam Mumford, Amisha Poret-Peterson, Douglas B. Chambers
The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume The role of alluvial aquifer sediments in attenuating a dissolved arsenic plume
In a crude-oil-contaminated sandy aquifer at the Bemidji site in northern Minnesota, biodegradation of petroleum hydrocarbons has resulted in release of naturally occurring As to groundwater under Fe-reducing conditions. This study used chemical extractions of aquifer sediments collected in 1993 and 2011–2014 to evaluate the relationship between Fe and As in different redox zones (oxic...
Authors
Brady Ziegler, Madeline Schreiber, Isabelle Cozzarelli
Filter Total Items: 13
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government