Aida Farag, PhD (Former Employee)
Science and Products
Energy Resources Life Cycle Integrated Science Team
The Energy Resources Life Cycle Integrated Science Team focuses on the potential for environmental contaminant exposures that might originate from energy resource activities including extraction, production, transportation, storage, waste management, and restoration. Perceived health risks to humans and other organisms will be distinguished from actual risks, if any. If actual risks are identified...
Do Trace Metal Concentrations in the Upper Columbia River Affect Early Life Stage White Sturgeon?
To understand if contaminants are associated with white sturgeon population declines, U.S. Geological Survey scientists reviewed the life history, physiology, and behavior of white sturgeon, along with recent toxicological studies and existing trace metal data for locations in the Columbia River. The analysis indicated that the highest concentrations of copper and other metals in the Columbia...
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...
Science Team about Energy and Plains and Potholes Environments (STEPPE)
Brine Contamination to Plains and Potholes Environments from Energy Development in the Williston Basin
Hydraulic Fracturing and Water Resources: An Assessment of the Potential Effects of Shale Gas Development on Water Resources in the United States
Shale gas is a key source of onshore domestic energy for the United States and production of this resource is increasing rapidly. Development and extraction of shale gas requires hydraulic fracturing, which entails horizontal drilling, perforation of steel casing and cement grout using explosive charges, and expansion of fractures using fluids under high pressure. Concern over potential
Science and Products
Energy Resources Life Cycle Integrated Science Team
The Energy Resources Life Cycle Integrated Science Team focuses on the potential for environmental contaminant exposures that might originate from energy resource activities including extraction, production, transportation, storage, waste management, and restoration. Perceived health risks to humans and other organisms will be distinguished from actual risks, if any. If actual risks are identified...
Do Trace Metal Concentrations in the Upper Columbia River Affect Early Life Stage White Sturgeon?
To understand if contaminants are associated with white sturgeon population declines, U.S. Geological Survey scientists reviewed the life history, physiology, and behavior of white sturgeon, along with recent toxicological studies and existing trace metal data for locations in the Columbia River. The analysis indicated that the highest concentrations of copper and other metals in the Columbia...
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...
Science Team about Energy and Plains and Potholes Environments (STEPPE)
Brine Contamination to Plains and Potholes Environments from Energy Development in the Williston Basin
Hydraulic Fracturing and Water Resources: An Assessment of the Potential Effects of Shale Gas Development on Water Resources in the United States
Shale gas is a key source of onshore domestic energy for the United States and production of this resource is increasing rapidly. Development and extraction of shale gas requires hydraulic fracturing, which entails horizontal drilling, perforation of steel casing and cement grout using explosive charges, and expansion of fractures using fluids under high pressure. Concern over potential
*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