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.
Science and Products
Filter Total Items: 21
Framework for Examining Stream Ecosystem Health in Areas of Shale Gas Development—A Multi-Parameter Watershed-Based Case Study in Pennsylvania
In a case study of 25 headwater streams in Pennsylvania, no statistically significant associations were determined between shale gas development and geochemical tracers of produced waters or measures of microbial and macroinvertebrate community composition. Although the results are specific to the region studied, the integrated biological and geochemical framework provides a tool for examining...
Produced water from Marcellus Shale and amphibians
Research biologists at the USGS Eastern Ecological Science Center (EESC) at the Patuxent Research Refuge are conducting a series of scientific studies on the potential effects of wastewater from hydraulic fracturing activities on terrestrial wildlife. Findings will help in assessing proposals for managing recycling and distribution of large volumes of flowback and produced waters generated by...
Hydrocarbons and Biofuels
Reston Biogeochemical Processes in Groundwater Laboratory (RBPGL) research on hydrocarbons and biofuels is aimed at understanding the controls on rates of hydrocarbon biodegradation and secondary effects in the shallow subsurface and at the mixing interface between groundwater and surface water bodies such as wetlands.
Wastewaters from Unconventional Oil and Gas Development
The Reston Biogeochemical Processes in Groundwater Laboratory (RBPGL) is assessing the potential risks to human and ecosystem health associated with Unconventional Oil and Gas (UOG) development.
Ongoing Research to Characterize the Complexity of Chemical Mixtures in Water Resources—Urban Stormwater
A multiagency reconnaissance study of chemicals in urban stormwater, sampled from pipes or ditches during 50 runoff events at 21 sites in 17 states across the United States, demonstrated that stormwater runoff contains complex mixtures of chemicals including polycyclic aromatic hydrocarbons, pesticides, and pharmaceuticals that are indicative of multiple sources in the watershed.
Cyclical Mobilization and Attenuation of Naturally Occurring Arsenic in an Underground Petroleum Plume
Scientists found that naturally occurring arsenic in aquifer sediments was mobilized into groundwater and attenuated through reattachment to sediments within an underground petroleum plume. Understanding these patterns identifies anthropogenic factors that affect arsenic presence and magnitude in groundwater.
Science and Products
Filter Total Items: 21
Framework for Examining Stream Ecosystem Health in Areas of Shale Gas Development—A Multi-Parameter Watershed-Based Case Study in Pennsylvania
In a case study of 25 headwater streams in Pennsylvania, no statistically significant associations were determined between shale gas development and geochemical tracers of produced waters or measures of microbial and macroinvertebrate community composition. Although the results are specific to the region studied, the integrated biological and geochemical framework provides a tool for examining...
Produced water from Marcellus Shale and amphibians
Research biologists at the USGS Eastern Ecological Science Center (EESC) at the Patuxent Research Refuge are conducting a series of scientific studies on the potential effects of wastewater from hydraulic fracturing activities on terrestrial wildlife. Findings will help in assessing proposals for managing recycling and distribution of large volumes of flowback and produced waters generated by...
Hydrocarbons and Biofuels
Reston Biogeochemical Processes in Groundwater Laboratory (RBPGL) research on hydrocarbons and biofuels is aimed at understanding the controls on rates of hydrocarbon biodegradation and secondary effects in the shallow subsurface and at the mixing interface between groundwater and surface water bodies such as wetlands.
Wastewaters from Unconventional Oil and Gas Development
The Reston Biogeochemical Processes in Groundwater Laboratory (RBPGL) is assessing the potential risks to human and ecosystem health associated with Unconventional Oil and Gas (UOG) development.
Ongoing Research to Characterize the Complexity of Chemical Mixtures in Water Resources—Urban Stormwater
A multiagency reconnaissance study of chemicals in urban stormwater, sampled from pipes or ditches during 50 runoff events at 21 sites in 17 states across the United States, demonstrated that stormwater runoff contains complex mixtures of chemicals including polycyclic aromatic hydrocarbons, pesticides, and pharmaceuticals that are indicative of multiple sources in the watershed.
Cyclical Mobilization and Attenuation of Naturally Occurring Arsenic in an Underground Petroleum Plume
Scientists found that naturally occurring arsenic in aquifer sediments was mobilized into groundwater and attenuated through reattachment to sediments within an underground petroleum plume. Understanding these patterns identifies anthropogenic factors that affect arsenic presence and magnitude in groundwater.
*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