Aida Farag, PhD (Former Employee)
Science and Products
Filter Total Items: 53
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 M. 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 M. 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 T. Rhea, Aida M. Farag, David D. Harper, Elizabeth McConnell, William G. 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 M. 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 M. Farag, David D. Harper, Anna C. Senecal, Arthur E. 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 M. Farag, D.D. Harper, W.A. Hubert, A.E. Hubert
Science and Products
Filter Total Items: 53
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 M. 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 M. 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 T. Rhea, Aida M. Farag, David D. Harper, Elizabeth McConnell, William G. 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 M. 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 M. Farag, David D. Harper, Anna C. Senecal, Arthur E. 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 M. Farag, D.D. Harper, W.A. Hubert, A.E. Hubert
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