Aida Farag, PhD (Former Employee)
Science and Products
Filter Total Items: 53
Restoration of impaired ecosystems: An ounce of prevention or a pound of cure? introduction, overview, and key messages from a SETAC-SER workshop Restoration of impaired ecosystems: An ounce of prevention or a pound of cure? introduction, overview, and key messages from a SETAC-SER workshop
A workshop on Restoration of Impaired Ecosystems was held in Jackson, Wyoming, in June 2014. Experts from Australia, Canada, Mexico, the United Kingdom, and the United States in ecotoxicology, restoration, and related fields from both the Society of Environmental Toxicology and Chemistry and the Society for Ecological Restoration convened to advance the practice of restoring ecosystems...
Authors
Aida Farag, Ruth Hull, Will Clements, Steve Glomb, Diane Larson, Ralph Stahl, Jenny Stauber
Transforming ecosystems: When, where, and how to restore contaminated sites Transforming ecosystems: When, where, and how to restore contaminated sites
Chemical contamination has impaired ecosystems, reducing biodiversity and the provisioning of functions and services. This has spurred a movement to restore contaminated ecosystems and develop and implement national and international regulations that require it. Nevertheless, ecological restoration remains a young and rapidly growing discipline and its intersection with toxicology is...
Authors
Jason Rohr, Aida Farag, Marc Cadotte, William Clements, James Smith, Cheryl Ulrich, Richard Woods
Assessment of surface water chloride and conductivity trends in areas of unconventional oil and gas development — Why existing national data sets cannot tell us what we would like to know Assessment of surface water chloride and conductivity trends in areas of unconventional oil and gas development — Why existing national data sets cannot tell us what we would like to know
Heightened concern regarding the potential effects of unconventional oil and gas development on regional water quality has emerged, but the few studies on this topic are limited in geographic scope. Here we evaluate the potential utility of national and publicly available water-quality data sets for addressing questions regarding unconventional oil and gas development. We used existing U...
Authors
Zachary Bowen, Gretchen Oelsner, Brian Cade, Tanya Gallegos, Aida Farag, David Mott, Christopher Potter, Peter Cinotto, Melanie Clark, William Kappel, Timothy Kresse, Cynthia Melcher, Suzanne Paschke, David Susong, Brian A. Varela
By
Ecosystems Mission Area, Water Resources Mission Area, Energy Resources Program, Central Energy Resources Science Center, Colorado Water Science Center, Columbia Environmental Research Center, Fort Collins Science Center, Geology, Energy & Minerals Science Center, John Wesley Powell Center for Analysis and Synthesis, Lower Mississippi-Gulf Water Science Center, New Mexico Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, Wyoming-Montana Water Science Center
Ecological risks of shale oil and gas development to wildlife, aquatic resources and their habitats Ecological risks of shale oil and gas development to wildlife, aquatic resources and their habitats
Technological advances in hydraulic fracturing and horizontal drilling have led to the exploration and exploitation of shale oil and gas both nationally and internationally. Extensive development of shale resources has occurred within the United States over the past decade, yet full build out is not expected to occur for years. Moreover, countries across the globe have large shale...
Authors
Margaret Brittingham, Kelly Maloney, Aida Farag, David Harper, Zachary Bowen
In situ and laboratory toxicity of coalbed natural gas produced waters with elevated sodium bicarbonate In situ and laboratory toxicity of coalbed natural gas produced waters with elevated sodium bicarbonate
Some tributaries in the Powder River Structural Basin, USA, were historically ephemeral, but now contain water year round as a result of discharge of coalbed natural gas (CBNG)-produced waters. This presented the opportunity to study field sites with 100% effluent water with elevated concentrations of sodium bicarbonate. In situ experiments, static renewal experiments performed...
Authors
Aida Farag, David D. Harper, Don Skaar
A review of environmental impacts of salts from produced waters on aquatic resources A review of environmental impacts of salts from produced waters on aquatic resources
Salts are frequently a major constituent of waste waters produced during oil and gas production. These produced waters or brines must be treated and/or disposed and provide a daily challenge for operators and resource managers. Some elements of salts are regulated with water quality criteria established for the protection of aquatic wildlife, e.g. chloride (Cl−), which has an acute...
Authors
Aïda M. Farag, David D. Harper
Acute toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters, to 13 aquatic species as defined in the laboratory Acute toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters, to 13 aquatic species as defined in the laboratory
Water produced during coal bed natural gas (CBNG) extraction in the Powder River Structural Basin of Wyoming and Montana (USA) may contain concentrations of sodium bicarbonate (NaHCO3) of more than 3000 mg/L. The authors evaluated the acute toxicity of NaHCO3, also expressed as bicarbonate (HCO3−), to 13 aquatic organisms. Of the 13 species tested, 7 had a median lethal concentration...
Authors
David D. Harper, Aida Farag, Don Skaar
The chronic toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters The chronic toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters
Sodium bicarbonate (NaHCO3) is the principal salt in coal bed natural gas produced water from the Powder River Structural Basin, Wyoming, USA, and concentrations of up to 3000 mg NaHCO3/L have been documented at some locations. No adequate studies have been performed to assess the chronic effects of NaHCO3 exposure. The present study was initiated to investigate the chronic toxicity and...
Authors
Aida Farag, David D. Harper
Mercury and selenium concentrations in biofilm, macroinvertebrates, and fish collected in the Yankee Fork of the Salmon River, Idaho, USA, and their potential effects on fish health Mercury and selenium concentrations in biofilm, macroinvertebrates, and fish collected in the Yankee Fork of the Salmon River, Idaho, USA, and their potential effects on fish health
The Yankee Fork is a large tributary of the Salmon River located in central Idaho, USA, with an extensive history of placer and dredge-mining activities. Concentrations of selenium (Se) and mercury (Hg) in various aquatic trophic levels were measured in the Yankee Fork during 2001 and 2002. Various measurements of fish health were also performed. Sites included four on the mainstem of...
Authors
Darren Rhea, Aida Farag, David D. Harper, Elizabeth McConnell, William Brumbaugh
The potential effects of sodium bicarbonate, a major constituent from coalbed natural gas production, on aquatic life The potential effects of sodium bicarbonate, a major constituent from coalbed natural gas production, on aquatic life
The production water from coalbed natural gas (CBNG) extraction contains many constituents. The U.S. Environmental Protection Agency has established aquatic life criteria for some of these constituents, and it is therefore possible to evaluate their risk to aquatic life. However, of the major ions associated with produced waters, chloride is the only one with an established aquatic life...
Authors
Aida Farag, David D. Harper
Potential effects of coalbed natural gas development on fish and aquatic resources Potential effects of coalbed natural gas development on fish and aquatic resources
The purpose of this chapter is to provide a summary of issues and findings related to the potential effects of coalbed natural gas (CBNG) development on fish and other aquatic resources. We reviewed CBNG issues from across the United States and used the Powder River Basin of Wyoming as a case study to exemplify some pertinent issues. The quality of water produced during CBNG extraction...
Authors
Aida Farag, David Harper, Anna Senecal, Arthur Hubert
Potential effects of coal bed natural gas development on fish and aquatic resources Potential effects of coal bed natural gas development on fish and aquatic resources
The purpose of this chapter is to provide a summary of issues and findings related to the potential effects of coalbed natural gas (CBNG) development on fish and other aquatic resources. We reviewed CBNG issues from across the United States and used the Powder River Basin of Wyoming as a case study to exemplify some pertinent issues. The quality of water produced during CBNG extraction...
Authors
Aida Farag, D.D. Harper, W.A. Hubert, A.E. Hubert
Science and Products
Filter Total Items: 53
Restoration of impaired ecosystems: An ounce of prevention or a pound of cure? introduction, overview, and key messages from a SETAC-SER workshop Restoration of impaired ecosystems: An ounce of prevention or a pound of cure? introduction, overview, and key messages from a SETAC-SER workshop
A workshop on Restoration of Impaired Ecosystems was held in Jackson, Wyoming, in June 2014. Experts from Australia, Canada, Mexico, the United Kingdom, and the United States in ecotoxicology, restoration, and related fields from both the Society of Environmental Toxicology and Chemistry and the Society for Ecological Restoration convened to advance the practice of restoring ecosystems...
Authors
Aida Farag, Ruth Hull, Will Clements, Steve Glomb, Diane Larson, Ralph Stahl, Jenny Stauber
Transforming ecosystems: When, where, and how to restore contaminated sites Transforming ecosystems: When, where, and how to restore contaminated sites
Chemical contamination has impaired ecosystems, reducing biodiversity and the provisioning of functions and services. This has spurred a movement to restore contaminated ecosystems and develop and implement national and international regulations that require it. Nevertheless, ecological restoration remains a young and rapidly growing discipline and its intersection with toxicology is...
Authors
Jason Rohr, Aida Farag, Marc Cadotte, William Clements, James Smith, Cheryl Ulrich, Richard Woods
Assessment of surface water chloride and conductivity trends in areas of unconventional oil and gas development — Why existing national data sets cannot tell us what we would like to know Assessment of surface water chloride and conductivity trends in areas of unconventional oil and gas development — Why existing national data sets cannot tell us what we would like to know
Heightened concern regarding the potential effects of unconventional oil and gas development on regional water quality has emerged, but the few studies on this topic are limited in geographic scope. Here we evaluate the potential utility of national and publicly available water-quality data sets for addressing questions regarding unconventional oil and gas development. We used existing U...
Authors
Zachary Bowen, Gretchen Oelsner, Brian Cade, Tanya Gallegos, Aida Farag, David Mott, Christopher Potter, Peter Cinotto, Melanie Clark, William Kappel, Timothy Kresse, Cynthia Melcher, Suzanne Paschke, David Susong, Brian A. Varela
By
Ecosystems Mission Area, Water Resources Mission Area, Energy Resources Program, Central Energy Resources Science Center, Colorado Water Science Center, Columbia Environmental Research Center, Fort Collins Science Center, Geology, Energy & Minerals Science Center, John Wesley Powell Center for Analysis and Synthesis, Lower Mississippi-Gulf Water Science Center, New Mexico Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, Wyoming-Montana Water Science Center
Ecological risks of shale oil and gas development to wildlife, aquatic resources and their habitats Ecological risks of shale oil and gas development to wildlife, aquatic resources and their habitats
Technological advances in hydraulic fracturing and horizontal drilling have led to the exploration and exploitation of shale oil and gas both nationally and internationally. Extensive development of shale resources has occurred within the United States over the past decade, yet full build out is not expected to occur for years. Moreover, countries across the globe have large shale...
Authors
Margaret Brittingham, Kelly Maloney, Aida Farag, David Harper, Zachary Bowen
In situ and laboratory toxicity of coalbed natural gas produced waters with elevated sodium bicarbonate In situ and laboratory toxicity of coalbed natural gas produced waters with elevated sodium bicarbonate
Some tributaries in the Powder River Structural Basin, USA, were historically ephemeral, but now contain water year round as a result of discharge of coalbed natural gas (CBNG)-produced waters. This presented the opportunity to study field sites with 100% effluent water with elevated concentrations of sodium bicarbonate. In situ experiments, static renewal experiments performed...
Authors
Aida Farag, David D. Harper, Don Skaar
A review of environmental impacts of salts from produced waters on aquatic resources A review of environmental impacts of salts from produced waters on aquatic resources
Salts are frequently a major constituent of waste waters produced during oil and gas production. These produced waters or brines must be treated and/or disposed and provide a daily challenge for operators and resource managers. Some elements of salts are regulated with water quality criteria established for the protection of aquatic wildlife, e.g. chloride (Cl−), which has an acute...
Authors
Aïda M. Farag, David D. Harper
Acute toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters, to 13 aquatic species as defined in the laboratory Acute toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters, to 13 aquatic species as defined in the laboratory
Water produced during coal bed natural gas (CBNG) extraction in the Powder River Structural Basin of Wyoming and Montana (USA) may contain concentrations of sodium bicarbonate (NaHCO3) of more than 3000 mg/L. The authors evaluated the acute toxicity of NaHCO3, also expressed as bicarbonate (HCO3−), to 13 aquatic organisms. Of the 13 species tested, 7 had a median lethal concentration...
Authors
David D. Harper, Aida Farag, Don Skaar
The chronic toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters The chronic toxicity of sodium bicarbonate, a major component of coal bed natural gas produced waters
Sodium bicarbonate (NaHCO3) is the principal salt in coal bed natural gas produced water from the Powder River Structural Basin, Wyoming, USA, and concentrations of up to 3000 mg NaHCO3/L have been documented at some locations. No adequate studies have been performed to assess the chronic effects of NaHCO3 exposure. The present study was initiated to investigate the chronic toxicity and...
Authors
Aida Farag, David D. Harper
Mercury and selenium concentrations in biofilm, macroinvertebrates, and fish collected in the Yankee Fork of the Salmon River, Idaho, USA, and their potential effects on fish health Mercury and selenium concentrations in biofilm, macroinvertebrates, and fish collected in the Yankee Fork of the Salmon River, Idaho, USA, and their potential effects on fish health
The Yankee Fork is a large tributary of the Salmon River located in central Idaho, USA, with an extensive history of placer and dredge-mining activities. Concentrations of selenium (Se) and mercury (Hg) in various aquatic trophic levels were measured in the Yankee Fork during 2001 and 2002. Various measurements of fish health were also performed. Sites included four on the mainstem of...
Authors
Darren Rhea, Aida Farag, David D. Harper, Elizabeth McConnell, William Brumbaugh
The potential effects of sodium bicarbonate, a major constituent from coalbed natural gas production, on aquatic life The potential effects of sodium bicarbonate, a major constituent from coalbed natural gas production, on aquatic life
The production water from coalbed natural gas (CBNG) extraction contains many constituents. The U.S. Environmental Protection Agency has established aquatic life criteria for some of these constituents, and it is therefore possible to evaluate their risk to aquatic life. However, of the major ions associated with produced waters, chloride is the only one with an established aquatic life...
Authors
Aida Farag, David D. Harper
Potential effects of coalbed natural gas development on fish and aquatic resources Potential effects of coalbed natural gas development on fish and aquatic resources
The purpose of this chapter is to provide a summary of issues and findings related to the potential effects of coalbed natural gas (CBNG) development on fish and other aquatic resources. We reviewed CBNG issues from across the United States and used the Powder River Basin of Wyoming as a case study to exemplify some pertinent issues. The quality of water produced during CBNG extraction...
Authors
Aida Farag, David Harper, Anna Senecal, Arthur Hubert
Potential effects of coal bed natural gas development on fish and aquatic resources Potential effects of coal bed natural gas development on fish and aquatic resources
The purpose of this chapter is to provide a summary of issues and findings related to the potential effects of coalbed natural gas (CBNG) development on fish and other aquatic resources. We reviewed CBNG issues from across the United States and used the Powder River Basin of Wyoming as a case study to exemplify some pertinent issues. The quality of water produced during CBNG extraction...
Authors
Aida Farag, D.D. Harper, W.A. Hubert, A.E. Hubert
*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