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Mark E Brigham (Former Employee)

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Dragonfly

Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

A comparison of regional mercury atmospheric deposition data with water, yellow perch, and dragonfly larvae samples from lakes in Voyageurs National Park indicates that decreases in mercury emissions resulted in mercury reduction in water from these remote lakes, but mercury declines in biota were significant in only one of three lakes, likely because resident biota integrate exposure over much...
By
Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

A comparison of regional mercury atmospheric deposition data with water, yellow perch, and dragonfly larvae samples from lakes in Voyageurs National Park indicates that decreases in mercury emissions resulted in mercury reduction in water from these remote lakes, but mercury declines in biota were significant in only one of three lakes, likely because resident biota integrate exposure over much...
Learn More
Thermoelectric power plant with cooling towers, smokestacks, and transmission towers

Mercury

Mercury is a potent neurotoxin that can affect the human nervous system. Eating fish contaminated with mercury can cause serious harm to people and wildlife.
By
Water Resources Mission Area
Mercury

Mercury

Mercury is a potent neurotoxin that can affect the human nervous system. Eating fish contaminated with mercury can cause serious harm to people and wildlife.
Learn More
Burning coal for energy production contributes large amounts of mercury to the atmosphere

Comprehensive Assessment of Mercury in Streams Explains Major Sources, Cycling, and Effects

A new USGS report, Mercury in the Nation's Streams—Levels, Trends, and Implications, presents a comprehensive assessment of mercury contamination in streams across the United States. It highlights the importance of environmental processes, monitoring, and control strategies for understanding and reducing stream mercury levels. This report summarizes selected stream studies conducted by the U.S...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Comprehensive Assessment of Mercury in Streams Explains Major Sources, Cycling, and Effects

Comprehensive Assessment of Mercury in Streams Explains Major Sources, Cycling, and Effects

A new USGS report, Mercury in the Nation's Streams—Levels, Trends, and Implications, presents a comprehensive assessment of mercury contamination in streams across the United States. It highlights the importance of environmental processes, monitoring, and control strategies for understanding and reducing stream mercury levels. This report summarizes selected stream studies conducted by the U.S...
Learn More
Voyageurs National Park

Complex Response to Decline in Atmospheric Deposition of Mercury

U.S. Geological Survey (USGS) scientists found that mercury concentrations in shallow waters and methylmercury (MeHg) concentrations in fish in four lakes in Voyageurs National Park, Minnesota, were not consistent with decreases in the wet atmospheric deposition of mercury recorded at nearby monitoring stations for over a decade. Methylmercury is a toxic form of mercury (Hg) that accumulates and...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Complex Response to Decline in Atmospheric Deposition of Mercury

Complex Response to Decline in Atmospheric Deposition of Mercury

U.S. Geological Survey (USGS) scientists found that mercury concentrations in shallow waters and methylmercury (MeHg) concentrations in fish in four lakes in Voyageurs National Park, Minnesota, were not consistent with decreases in the wet atmospheric deposition of mercury recorded at nearby monitoring stations for over a decade. Methylmercury is a toxic form of mercury (Hg) that accumulates and...
Learn More

Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Tributaries, 2014 - Collection Methods, Analytical Methods, Quality Assurance Analyses, and Data Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Tributaries, 2014 - Collection Methods, Analytical Methods, Quality Assurance Analyses, and Data

The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and St. Cloud State University (SCSU), identified the occurrence of contaminants of emerging concern (CECs) in water and bottom sediment collected in 2014 at 65 sites throughout the Great Lakes Basin. The 2014 effort is part of a long-term study that began in 2010. Included in this directory...
By
Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Areas of Concern, 2013 - Analytical Methods, Collection Methods, Environmental Data, and Quality Assurance Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Areas of Concern, 2013 - Analytical Methods, Collection Methods, Environmental Data, and Quality Assurance

The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and the U.S. Environmental Protection Agency (EPA), identified the occurrence of contaminants of emerging concern (CECs) in water and bottom sediment collected in 2013 at 57 sites throughout the Great Lakes Basin. The 2013 effort is part of a long-term study that began in 2010. Included in...
By
Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
USGS group photo of Bemidji oil spill research project team
Bemidji oil spill research team group photo
Bemidji oil spill research team group photo
USGS group photo of Bemidji oil spill research project team

Bemidji oil spill research team group photo

Bemidji oil spill research team group photo

Group photo of USGS Bemidi oil spill research team meeting in June of 2019 at Ruttgers Birchmont Lodge in Bemidji, MN.

By
Ecosystems, Environmental Health Program, Toxic Substances Hydrology, Upper Midwest Water Science Center
USGS group photo of Bemidji oil spill research project team

Bemidji oil spill research team group photo

Bemidji oil spill research team group photo

Group photo of USGS Bemidi oil spill research team meeting in June of 2019 at Ruttgers Birchmont Lodge in Bemidji, MN.

By
Ecosystems, Environmental Health Program, Toxic Substances Hydrology, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageaurs National Park
Scientists sampling fish from a canoe on Shoepack Lake
Scientists sampling fish from a canoe on Shoepack Lake
Scientists sampling fish from a canoe on Shoepack Lake in Voyageaurs National Park

Scientists sampling fish from a canoe on Shoepack Lake

Scientists sampling fish from a canoe on Shoepack Lake

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park.

By
Water Resources Mission Area, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageaurs National Park

Scientists sampling fish from a canoe on Shoepack Lake

Scientists sampling fish from a canoe on Shoepack Lake

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park.

By
Water Resources Mission Area, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageurs National Park
Scientists sampling for fish on Shoepack Lake via canoe
Scientists sampling for fish on Shoepack Lake via canoe
Scientists sampling fish from a canoe on Shoepack Lake in Voyageurs National Park

Scientists sampling for fish on Shoepack Lake via canoe

Scientists sampling for fish on Shoepack Lake via canoe

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park. A burned tree is in the foreground from a previous wildland fire.

By
Water Resources, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageurs National Park

Scientists sampling for fish on Shoepack Lake via canoe

Scientists sampling for fish on Shoepack Lake via canoe

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park. A burned tree is in the foreground from a previous wildland fire.

By
Water Resources, Upper Midwest Water Science Center
Filter Total Items: 45

Analysis of groundwater and surface water in areas of isoxaflutole application, Tuscola and Kalamazoo Counties, Michigan Analysis of groundwater and surface water in areas of isoxaflutole application, Tuscola and Kalamazoo Counties, Michigan

The herbicide 5-cyclopropyl-4-(2-methylsulfonyl-4-trifluoromethylbenzoyl) isoxazole, also known as isoxaflutole (IXF), was conditionally approved for use on corn in Michigan in 2015. The fate of IXF and its degradates in different environmental settings and the processes by which these compounds move to groundwater or to surface-water bodies have been previously studied, but little...
Authors
Carol L. Luukkonen, Mark E. Brigham
By
Upper Midwest Water Science Center

Long-term trends in regional wet mercury deposition and lacustrine mercury concentrations in four lakes in Voyageurs National Park Long-term trends in regional wet mercury deposition and lacustrine mercury concentrations in four lakes in Voyageurs National Park

Although anthropogenic mercury (Hg) releases to the environment have been substantially lowered in the United States and Canada since 1990, concerns remain for contamination in fish from remote lakes and rivers where atmospheric deposition is the predominant source of mercury. How have aquatic ecosystems responded? We report on one of the longest known multimedia data sets for mercury in
Authors
Mark E. Brigham, David D. VanderMeulen, Collin A. Eagles-Smith, David P. Krabbenhoft, Ryan P. Maki, John F. DeWild
By
Upper Midwest Water Science Center, M3 Research Laboratory

Methylmercury-Total mercury ratios in predator and primary consumer insects from Adirondack streams (New York, USA) Methylmercury-Total mercury ratios in predator and primary consumer insects from Adirondack streams (New York, USA)

Mercury (Hg) is a global pollutant that affects biota in remote settings due to atmospheric deposition of inorganic Hg, and its conversion to methylmercury (MeHg), the bioaccumulating and toxic form. Characterizing biotic MeHg is important for evaluating aquatic ecosystem responses to changes in Hg inputs. Aquatic insects possess many qualities desired for MeHg biomonitoring, but are not...
Authors
Karen Riva-Murray, Paul M. Bradley, Mark E. Brigham
By
Water Resources Mission Area, New York Water Science Center

Environmentally relevant chemical mixtures of concern in waters of United States tributaries to the Great Lakes Environmentally relevant chemical mixtures of concern in waters of United States tributaries to the Great Lakes

The North American Great Lakes are a vital natural resource that provide fish and wildlife habitat, as well as drinking water and waste assimilation services for millions of people. Tributaries to the Great Lakes receive chemical inputs from various point and nonpoint sources, and thus are expected to have complex mixtures of chemicals. However, our understanding of the co‐occurrence of...
Authors
Sarah M. Elliott, Mark E. Brigham, Richard L. Kiesling, Heiko L. Schoenfuss, Zachary G. Jorgenson
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Drain tiles and groundwater resources: Understanding the relations Drain tiles and groundwater resources: Understanding the relations

Executive Summary Drainage for agricultural production over the past 150 years has been an integral component of human-driven change to Minnesota’s rural landscapes. Benefits of drainage Historically, poorly drained soils across much of the State would often remain saturated or flooded after spring snowmelt, preventing timely farm operations such as tilling and planting crops (Arneman...
Authors
Erik A. Smith, Timothy Gillette, Kristen Blann, Mary Coburn, Bryce Hoppie, Suzanne Rhees
By
Upper Midwest Water Science Center

Contaminants of emerging concern in tributaries to the Laurentian Great Lakes: I. Patterns of occurrence Contaminants of emerging concern in tributaries to the Laurentian Great Lakes: I. Patterns of occurrence

Human activities introduce a variety of chemicals to the Laurentian Great Lakes including pesticides, pharmaceuticals, flame retardants, plasticizers, and solvents (collectively referred to as contaminants of emerging concern or CECs) potentially threatening the vitality of these valuable ecosystems. We conducted a basin-wide study to identify the presence of CECs and other chemicals of...
Authors
Sarah M. Elliott, Mark E. Brigham, Kathy Lee, Jo A. Banda, Steven J. Choy, Daniel J. Gefell, Thomas A. Minarik, Jeremy N. Moore, Zachary G. Jorgenson
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

A comparison of regional mercury atmospheric deposition data with water, yellow perch, and dragonfly larvae samples from lakes in Voyageurs National...

Read Article
Decreased Pollution Has Mixed Effects on Minnesota Lakes

Decreased Pollution Has Mixed Effects on Minnesota Lakes

Methylmercury contamination is decreasing in some lakes in northern Minnesota as a result of reduced mercury pollution, according to a U.S. Geological...
Read Article

Science and Products

Dragonfly

Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

A comparison of regional mercury atmospheric deposition data with water, yellow perch, and dragonfly larvae samples from lakes in Voyageurs National Park indicates that decreases in mercury emissions resulted in mercury reduction in water from these remote lakes, but mercury declines in biota were significant in only one of three lakes, likely because resident biota integrate exposure over much...
By
Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

A comparison of regional mercury atmospheric deposition data with water, yellow perch, and dragonfly larvae samples from lakes in Voyageurs National Park indicates that decreases in mercury emissions resulted in mercury reduction in water from these remote lakes, but mercury declines in biota were significant in only one of three lakes, likely because resident biota integrate exposure over much...
Learn More
Thermoelectric power plant with cooling towers, smokestacks, and transmission towers

Mercury

Mercury is a potent neurotoxin that can affect the human nervous system. Eating fish contaminated with mercury can cause serious harm to people and wildlife.
By
Water Resources Mission Area
Mercury

Mercury

Mercury is a potent neurotoxin that can affect the human nervous system. Eating fish contaminated with mercury can cause serious harm to people and wildlife.
Learn More
Burning coal for energy production contributes large amounts of mercury to the atmosphere

Comprehensive Assessment of Mercury in Streams Explains Major Sources, Cycling, and Effects

A new USGS report, Mercury in the Nation's Streams—Levels, Trends, and Implications, presents a comprehensive assessment of mercury contamination in streams across the United States. It highlights the importance of environmental processes, monitoring, and control strategies for understanding and reducing stream mercury levels. This report summarizes selected stream studies conducted by the U.S...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Comprehensive Assessment of Mercury in Streams Explains Major Sources, Cycling, and Effects

Comprehensive Assessment of Mercury in Streams Explains Major Sources, Cycling, and Effects

A new USGS report, Mercury in the Nation's Streams—Levels, Trends, and Implications, presents a comprehensive assessment of mercury contamination in streams across the United States. It highlights the importance of environmental processes, monitoring, and control strategies for understanding and reducing stream mercury levels. This report summarizes selected stream studies conducted by the U.S...
Learn More
Voyageurs National Park

Complex Response to Decline in Atmospheric Deposition of Mercury

U.S. Geological Survey (USGS) scientists found that mercury concentrations in shallow waters and methylmercury (MeHg) concentrations in fish in four lakes in Voyageurs National Park, Minnesota, were not consistent with decreases in the wet atmospheric deposition of mercury recorded at nearby monitoring stations for over a decade. Methylmercury is a toxic form of mercury (Hg) that accumulates and...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Complex Response to Decline in Atmospheric Deposition of Mercury

Complex Response to Decline in Atmospheric Deposition of Mercury

U.S. Geological Survey (USGS) scientists found that mercury concentrations in shallow waters and methylmercury (MeHg) concentrations in fish in four lakes in Voyageurs National Park, Minnesota, were not consistent with decreases in the wet atmospheric deposition of mercury recorded at nearby monitoring stations for over a decade. Methylmercury is a toxic form of mercury (Hg) that accumulates and...
Learn More

Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Tributaries, 2014 - Collection Methods, Analytical Methods, Quality Assurance Analyses, and Data Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Tributaries, 2014 - Collection Methods, Analytical Methods, Quality Assurance Analyses, and Data

The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and St. Cloud State University (SCSU), identified the occurrence of contaminants of emerging concern (CECs) in water and bottom sediment collected in 2014 at 65 sites throughout the Great Lakes Basin. The 2014 effort is part of a long-term study that began in 2010. Included in this directory...
By
Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Areas of Concern, 2013 - Analytical Methods, Collection Methods, Environmental Data, and Quality Assurance Chemicals of Emerging Concern in Water and Bottom Sediment in Great Lakes Areas of Concern, 2013 - Analytical Methods, Collection Methods, Environmental Data, and Quality Assurance

The U.S. Geological Survey (USGS), in cooperation with the U.S. Fish and Wildlife Service (USFWS) and the U.S. Environmental Protection Agency (EPA), identified the occurrence of contaminants of emerging concern (CECs) in water and bottom sediment collected in 2013 at 57 sites throughout the Great Lakes Basin. The 2013 effort is part of a long-term study that began in 2010. Included in...
By
Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
USGS group photo of Bemidji oil spill research project team
Bemidji oil spill research team group photo
Bemidji oil spill research team group photo
USGS group photo of Bemidji oil spill research project team

Bemidji oil spill research team group photo

Bemidji oil spill research team group photo

Group photo of USGS Bemidi oil spill research team meeting in June of 2019 at Ruttgers Birchmont Lodge in Bemidji, MN.

By
Ecosystems, Environmental Health Program, Toxic Substances Hydrology, Upper Midwest Water Science Center
USGS group photo of Bemidji oil spill research project team

Bemidji oil spill research team group photo

Bemidji oil spill research team group photo

Group photo of USGS Bemidi oil spill research team meeting in June of 2019 at Ruttgers Birchmont Lodge in Bemidji, MN.

By
Ecosystems, Environmental Health Program, Toxic Substances Hydrology, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageaurs National Park
Scientists sampling fish from a canoe on Shoepack Lake
Scientists sampling fish from a canoe on Shoepack Lake
Scientists sampling fish from a canoe on Shoepack Lake in Voyageaurs National Park

Scientists sampling fish from a canoe on Shoepack Lake

Scientists sampling fish from a canoe on Shoepack Lake

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park.

By
Water Resources Mission Area, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageaurs National Park

Scientists sampling fish from a canoe on Shoepack Lake

Scientists sampling fish from a canoe on Shoepack Lake

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park.

By
Water Resources Mission Area, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageurs National Park
Scientists sampling for fish on Shoepack Lake via canoe
Scientists sampling for fish on Shoepack Lake via canoe
Scientists sampling fish from a canoe on Shoepack Lake in Voyageurs National Park

Scientists sampling for fish on Shoepack Lake via canoe

Scientists sampling for fish on Shoepack Lake via canoe

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park. A burned tree is in the foreground from a previous wildland fire.

By
Water Resources, Upper Midwest Water Science Center
Scientists sampling fish from a canoe on Shoepack Lake in Voyageurs National Park

Scientists sampling for fish on Shoepack Lake via canoe

Scientists sampling for fish on Shoepack Lake via canoe

Mark Sandheinrich and Sean Bailey of the University of Wisconsin - La Crosse sampling fish from a canoe on Shoepack Lake in Voyageurs National Park. A burned tree is in the foreground from a previous wildland fire.

By
Water Resources, Upper Midwest Water Science Center
Filter Total Items: 45

Analysis of groundwater and surface water in areas of isoxaflutole application, Tuscola and Kalamazoo Counties, Michigan Analysis of groundwater and surface water in areas of isoxaflutole application, Tuscola and Kalamazoo Counties, Michigan

The herbicide 5-cyclopropyl-4-(2-methylsulfonyl-4-trifluoromethylbenzoyl) isoxazole, also known as isoxaflutole (IXF), was conditionally approved for use on corn in Michigan in 2015. The fate of IXF and its degradates in different environmental settings and the processes by which these compounds move to groundwater or to surface-water bodies have been previously studied, but little...
Authors
Carol L. Luukkonen, Mark E. Brigham
By
Upper Midwest Water Science Center

Long-term trends in regional wet mercury deposition and lacustrine mercury concentrations in four lakes in Voyageurs National Park Long-term trends in regional wet mercury deposition and lacustrine mercury concentrations in four lakes in Voyageurs National Park

Although anthropogenic mercury (Hg) releases to the environment have been substantially lowered in the United States and Canada since 1990, concerns remain for contamination in fish from remote lakes and rivers where atmospheric deposition is the predominant source of mercury. How have aquatic ecosystems responded? We report on one of the longest known multimedia data sets for mercury in
Authors
Mark E. Brigham, David D. VanderMeulen, Collin A. Eagles-Smith, David P. Krabbenhoft, Ryan P. Maki, John F. DeWild
By
Upper Midwest Water Science Center, M3 Research Laboratory

Methylmercury-Total mercury ratios in predator and primary consumer insects from Adirondack streams (New York, USA) Methylmercury-Total mercury ratios in predator and primary consumer insects from Adirondack streams (New York, USA)

Mercury (Hg) is a global pollutant that affects biota in remote settings due to atmospheric deposition of inorganic Hg, and its conversion to methylmercury (MeHg), the bioaccumulating and toxic form. Characterizing biotic MeHg is important for evaluating aquatic ecosystem responses to changes in Hg inputs. Aquatic insects possess many qualities desired for MeHg biomonitoring, but are not...
Authors
Karen Riva-Murray, Paul M. Bradley, Mark E. Brigham
By
Water Resources Mission Area, New York Water Science Center

Environmentally relevant chemical mixtures of concern in waters of United States tributaries to the Great Lakes Environmentally relevant chemical mixtures of concern in waters of United States tributaries to the Great Lakes

The North American Great Lakes are a vital natural resource that provide fish and wildlife habitat, as well as drinking water and waste assimilation services for millions of people. Tributaries to the Great Lakes receive chemical inputs from various point and nonpoint sources, and thus are expected to have complex mixtures of chemicals. However, our understanding of the co‐occurrence of...
Authors
Sarah M. Elliott, Mark E. Brigham, Richard L. Kiesling, Heiko L. Schoenfuss, Zachary G. Jorgenson
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Drain tiles and groundwater resources: Understanding the relations Drain tiles and groundwater resources: Understanding the relations

Executive Summary Drainage for agricultural production over the past 150 years has been an integral component of human-driven change to Minnesota’s rural landscapes. Benefits of drainage Historically, poorly drained soils across much of the State would often remain saturated or flooded after spring snowmelt, preventing timely farm operations such as tilling and planting crops (Arneman...
Authors
Erik A. Smith, Timothy Gillette, Kristen Blann, Mary Coburn, Bryce Hoppie, Suzanne Rhees
By
Upper Midwest Water Science Center

Contaminants of emerging concern in tributaries to the Laurentian Great Lakes: I. Patterns of occurrence Contaminants of emerging concern in tributaries to the Laurentian Great Lakes: I. Patterns of occurrence

Human activities introduce a variety of chemicals to the Laurentian Great Lakes including pesticides, pharmaceuticals, flame retardants, plasticizers, and solvents (collectively referred to as contaminants of emerging concern or CECs) potentially threatening the vitality of these valuable ecosystems. We conducted a basin-wide study to identify the presence of CECs and other chemicals of...
Authors
Sarah M. Elliott, Mark E. Brigham, Kathy Lee, Jo A. Banda, Steven J. Choy, Daniel J. Gefell, Thomas A. Minarik, Jeremy N. Moore, Zachary G. Jorgenson
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

Long-Term Monitoring Reveals How Water and Biota in Remote Lakes Respond Differently to Changes in Atmospheric Deposition of Mercury

A comparison of regional mercury atmospheric deposition data with water, yellow perch, and dragonfly larvae samples from lakes in Voyageurs National...

Read Article
Decreased Pollution Has Mixed Effects on Minnesota Lakes

Decreased Pollution Has Mixed Effects on Minnesota Lakes

Methylmercury contamination is decreasing in some lakes in northern Minnesota as a result of reduced mercury pollution, according to a U.S. Geological...
Read Article
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