Steven R Corsi
Steven Corsi is a Scientist Emeritus with the Upper Midwest Water Science Center.
AREAS OF EXPERTISE
- Impact of aircraft and pavement deicers on aquatic ecosystems
- Evaluation of the effectiveness of airport deicer management systems
- Assessment of anthropogenic impact on stream water quality
- Aquatic toxicity evaluation
- Recreational water quality
- Surface water investigations of waterborne pathogens
Education and Certifications
M.S. in Civil and Environmental Engineering, University of Wisconsin, 1989
B.S. in Physics, University of Wisconsin-Eau Claire, 1986
Affiliations and Memberships*
State of Wisconsin Licensed Professional Hydrologist
Society of Toxicology and Chemistry
Science and Products
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Spatial distribution of microplastics in surficial benthic sediment of Lake Michigan and Lake Erie Spatial distribution of microplastics in surficial benthic sediment of Lake Michigan and Lake Erie
The spatial distribution, concentration, particle size, and polymer compositions of microplastics in Lake Michigan and Lake Erie sediment were investigated. Fibers/lines were the most abundant of the five particle types characterized. Microplastic particles were observed in all samples with mean concentrations for particles greater than 0.355 mm of 65.2 p kg–1 in Lake Michigan samples (n...
Authors
Peter Lenaker, Steven R. Corsi, Sherri Mason
Primary sources of polycyclic aromatic hydrocarbons to streambed sediment in Great Lakes tributaries using multiple lines of evidence Primary sources of polycyclic aromatic hydrocarbons to streambed sediment in Great Lakes tributaries using multiple lines of evidence
Polycyclic aromatic hydrocarbons (PAHs) are among the most widespread and potentially toxic contaminants in Great Lakes (USA/Canada) tributaries. The sources of PAHs are numerous and diverse, and identifying the primary source(s) can be difficult. The present study used multiple lines of evidence to determine the likely sources of PAHs to surficial streambed sediments at 71 locations...
Authors
Austin Baldwin, Steven R. Corsi, Samantha Oliver, Peter Lenaker, Michelle Nott, Marc Mills, Gary Norris, Pentti Paatero
Vertical distribution of microplastics in the water column and surficial sediment from the Milwaukee River basin to Lake Michigan Vertical distribution of microplastics in the water column and surficial sediment from the Milwaukee River basin to Lake Michigan
Microplastic contamination was studied along a freshwater continuum from inland streams to the Milwaukee River estuary to Lake Michigan, and vertically from the water surface, water subsurface and sediment. Microplastics were detected in all 96 water samples and nine sediment samples collected. Results indicated a gradient of polymer presence with depth: low-density particles decreased...
Authors
Peter Lenaker, Austin Baldwin, Steven R. Corsi, Sherri Mason, Paul C. Reneau, John Scott
Prioritizing chemicals of ecological concern in Great Lakes tributaries using high-throughput screening data and adverse outcome pathways Prioritizing chemicals of ecological concern in Great Lakes tributaries using high-throughput screening data and adverse outcome pathways
Chemical monitoring data were collected in surface waters from 57 Great Lakes tributaries from 2010-13 to identify chemicals of potential biological relevance and sites at which these chemicals occur. Traditional water-quality benchmarks for aquatic life based on in vivo toxicity data were available for 34 of 67 evaluated chemicals. To expand evaluation of potential biological effects...
Authors
Steven R. Corsi, Laura DeCicco, Daniel L. Villeneuve, Brett Blackwell, Kellie Fay, Gerald Ankley, Austin Baldwin
Mixed-chemical exposure and predicted effects potential in wadeable southeastern USA streams Mixed-chemical exposure and predicted effects potential in wadeable southeastern USA streams
Complex chemical mixtures have been widely reported in larger streams but relatively little work has been done to characterize them and assess their potential effects in headwaterstreams. In 2014, the United States Geological Survey (USGS) sampled 54 Piedmont streams over ten weeks and measured 475 unique organic compounds using five analytical methods. Maximum and median exposure...
Authors
Paul Bradley, Celeste Journey, Jason Berninger, Daniel Button, Jimmy Clark, Steven R. Corsi, Laura DeCicco, Kristina Hopkins, Bradley Huffman, Naomi Nakagaki, Julia Norman, Lisa Nowell, Sharon Qi, Peter Van Metre, Ian Waite
Sewage loading and microbial risk in urban waters of the Great Lakes Sewage loading and microbial risk in urban waters of the Great Lakes
Despite modern sewer system infrastructure, the release of sewage from deteriorating pipes and sewer overflows is a major water pollution problem in US cities, particularly in coastal watersheds that are highly developed with large human populations. We quantified fecal pollution sources and loads entering Lake Michigan from a large watershed of mixed land use using host-associated...
Authors
Sandra McLellan, Elizabeth Sauer, Steven R. Corsi, Melinda Bootsma, Alexandria Boehm, Susan Spencer, Mark Borchardt
Reconnaissance of mixed organic and inorganic chemicals in private and public supply tapwaters at selected residential and workplace sites in the United States Reconnaissance of mixed organic and inorganic chemicals in private and public supply tapwaters at selected residential and workplace sites in the United States
Safe drinking water at the point-of-use (tapwater, TW) is a United States public health priority. Multiple lines of evidence were used to evaluate potential human health concerns of 482 organics and 19 inorganics in TW from 13 (7 public supply, 6 private well self-supply) home and 12 (public supply) workplace locations in 11 states. Only uranium (61.9 μg L–1, private well) exceeded a...
Authors
Paul Bradley, Dana Kolpin, Kristin Romanok, Kelly Smalling, Michael Focazio, Juliane Brown, Mary Cardon, Kurt Carpenter, Steven R. Corsi, Laura DeCicco, Julie Dietze, Nicola Evans, Edward Furlong, Carrie E. Givens, James Gray, Dale Griffin, Christopher Higgins, Michelle L. Hladik, Luke R. Iwanowicz, Celeste Journey, Kathryn Kuivila, Jason Masoner, Carrie McDonough, Michael Meyer, James Orlando, Mark Strynar, Christopher P. Weis, Vickie Wilson
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Central Plains Water Science Center, California Water Science Center, Central Midwest Water Science Center, Colorado Water Science Center, Eastern Ecological Science Center, Kansas Water Science Center, New Jersey Water Science Center, Oregon Water Science Center, South Atlantic Water Science Center (SAWSC), St. Petersburg Coastal and Marine Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, National Water Quality Laboratory
Patterns of host-associated fecal indicators driven by hydrology, precipitation, and land use attributes in Great Lakes watersheds Patterns of host-associated fecal indicators driven by hydrology, precipitation, and land use attributes in Great Lakes watersheds
Fecal contamination from sewage and agricultural runoff is a pervasive problem in Great Lakes watersheds. Most work examining fecal pollution loads relies on discrete samples of fecal indicators and modeling land use. In this study, we made empirical measurements of human and ruminant-associated fecal indicator bacteria and combined these with hydrological measurements in eight...
Authors
Deborah Dila, Steven R. Corsi, Peter Lenaker, Austin Baldwin, Melinda Bootsma, Sandra McLellan
Year-round presence of neonicotinoid insecticides in tributaries to the Great Lakes, USA Year-round presence of neonicotinoid insecticides in tributaries to the Great Lakes, USA
To better characterize the transport of neonicotinoid insecticides to the world's largest freshwater ecosystem, monthly samples (October 2015–September 2016) were collected from 10 major tributaries to the Great Lakes, USA. For the monthly tributary samples, neonicotinoids were detected in every month sampled and five of the six target neonicotinoids were detected. At least one...
Authors
Michelle L. Hladik, Steven R. Corsi, Dana Kolpin, Austin Baldwin, Brett R. Blackwell, Jenna Cavallin
Response to comment on “Primary sources and toxicity of PAHs in Milwaukee-area streambed sediments”—The authors' reply Response to comment on “Primary sources and toxicity of PAHs in Milwaukee-area streambed sediments”—The authors' reply
No abstract available.
Authors
Austin Baldwin, Steven R. Corsi, Michelle Lutz, Christopher Ingersoll, Rebecca Dorman, Christopher Magruder, Matthew Magruder
An “EAR” on environmental surveillance and monitoring: A case study on the use of Exposure–Activity Ratios (EARs) to prioritize sites, chemicals, and bioactivities of concern in Great Lakes waters An “EAR” on environmental surveillance and monitoring: A case study on the use of Exposure–Activity Ratios (EARs) to prioritize sites, chemicals, and bioactivities of concern in Great Lakes waters
Current environmental monitoring approaches focus primarily on chemical occurrence. However, based on concentration alone, it can be difficult to identify which compounds may be of toxicological concern and should be prioritized for further monitoring, in-depth testing, or management. This can be problematic because toxicological characterization is lacking for many emerging contaminants...
Authors
Brett R. Blackwell, Gerald T. Ankley, Steven R. Corsi, Laura DeCicco, Kieth A. Houck, Richard Judson, Shibin Li, Matthew Martin, Elizabeth Murphy, Anthony Schroeder, Edwin R. Smith, Joe Swintek, Daniel Villeneuve
Hydrologic, land cover, and seasonal patterns of waterborne pathogens in Great Lakes tributaries Hydrologic, land cover, and seasonal patterns of waterborne pathogens in Great Lakes tributaries
Great Lakes tributaries are known to deliver waterborne pathogens from a host of sources. To examine the hydrologic, land cover, and seasonal patterns of waterborne pathogens (i.e. protozoa (2), pathogenic bacteria (4) human viruses, (8) and bovine viruses (8)) eight rivers were monitored in the Great Lakes Basin over 29 months from February 2011 to June 2013. Sampling locations...
Authors
Peter Lenaker, Steven R. Corsi, Mark Borchardt, Susan Spencer, Austin Baldwin, Michelle Lutz
Science and Products
Filter Total Items: 15
No Result Found
Filter Total Items: 79
Spatial distribution of microplastics in surficial benthic sediment of Lake Michigan and Lake Erie Spatial distribution of microplastics in surficial benthic sediment of Lake Michigan and Lake Erie
The spatial distribution, concentration, particle size, and polymer compositions of microplastics in Lake Michigan and Lake Erie sediment were investigated. Fibers/lines were the most abundant of the five particle types characterized. Microplastic particles were observed in all samples with mean concentrations for particles greater than 0.355 mm of 65.2 p kg–1 in Lake Michigan samples (n...
Authors
Peter Lenaker, Steven R. Corsi, Sherri Mason
Primary sources of polycyclic aromatic hydrocarbons to streambed sediment in Great Lakes tributaries using multiple lines of evidence Primary sources of polycyclic aromatic hydrocarbons to streambed sediment in Great Lakes tributaries using multiple lines of evidence
Polycyclic aromatic hydrocarbons (PAHs) are among the most widespread and potentially toxic contaminants in Great Lakes (USA/Canada) tributaries. The sources of PAHs are numerous and diverse, and identifying the primary source(s) can be difficult. The present study used multiple lines of evidence to determine the likely sources of PAHs to surficial streambed sediments at 71 locations...
Authors
Austin Baldwin, Steven R. Corsi, Samantha Oliver, Peter Lenaker, Michelle Nott, Marc Mills, Gary Norris, Pentti Paatero
Vertical distribution of microplastics in the water column and surficial sediment from the Milwaukee River basin to Lake Michigan Vertical distribution of microplastics in the water column and surficial sediment from the Milwaukee River basin to Lake Michigan
Microplastic contamination was studied along a freshwater continuum from inland streams to the Milwaukee River estuary to Lake Michigan, and vertically from the water surface, water subsurface and sediment. Microplastics were detected in all 96 water samples and nine sediment samples collected. Results indicated a gradient of polymer presence with depth: low-density particles decreased...
Authors
Peter Lenaker, Austin Baldwin, Steven R. Corsi, Sherri Mason, Paul C. Reneau, John Scott
Prioritizing chemicals of ecological concern in Great Lakes tributaries using high-throughput screening data and adverse outcome pathways Prioritizing chemicals of ecological concern in Great Lakes tributaries using high-throughput screening data and adverse outcome pathways
Chemical monitoring data were collected in surface waters from 57 Great Lakes tributaries from 2010-13 to identify chemicals of potential biological relevance and sites at which these chemicals occur. Traditional water-quality benchmarks for aquatic life based on in vivo toxicity data were available for 34 of 67 evaluated chemicals. To expand evaluation of potential biological effects...
Authors
Steven R. Corsi, Laura DeCicco, Daniel L. Villeneuve, Brett Blackwell, Kellie Fay, Gerald Ankley, Austin Baldwin
Mixed-chemical exposure and predicted effects potential in wadeable southeastern USA streams Mixed-chemical exposure and predicted effects potential in wadeable southeastern USA streams
Complex chemical mixtures have been widely reported in larger streams but relatively little work has been done to characterize them and assess their potential effects in headwaterstreams. In 2014, the United States Geological Survey (USGS) sampled 54 Piedmont streams over ten weeks and measured 475 unique organic compounds using five analytical methods. Maximum and median exposure...
Authors
Paul Bradley, Celeste Journey, Jason Berninger, Daniel Button, Jimmy Clark, Steven R. Corsi, Laura DeCicco, Kristina Hopkins, Bradley Huffman, Naomi Nakagaki, Julia Norman, Lisa Nowell, Sharon Qi, Peter Van Metre, Ian Waite
Sewage loading and microbial risk in urban waters of the Great Lakes Sewage loading and microbial risk in urban waters of the Great Lakes
Despite modern sewer system infrastructure, the release of sewage from deteriorating pipes and sewer overflows is a major water pollution problem in US cities, particularly in coastal watersheds that are highly developed with large human populations. We quantified fecal pollution sources and loads entering Lake Michigan from a large watershed of mixed land use using host-associated...
Authors
Sandra McLellan, Elizabeth Sauer, Steven R. Corsi, Melinda Bootsma, Alexandria Boehm, Susan Spencer, Mark Borchardt
Reconnaissance of mixed organic and inorganic chemicals in private and public supply tapwaters at selected residential and workplace sites in the United States Reconnaissance of mixed organic and inorganic chemicals in private and public supply tapwaters at selected residential and workplace sites in the United States
Safe drinking water at the point-of-use (tapwater, TW) is a United States public health priority. Multiple lines of evidence were used to evaluate potential human health concerns of 482 organics and 19 inorganics in TW from 13 (7 public supply, 6 private well self-supply) home and 12 (public supply) workplace locations in 11 states. Only uranium (61.9 μg L–1, private well) exceeded a...
Authors
Paul Bradley, Dana Kolpin, Kristin Romanok, Kelly Smalling, Michael Focazio, Juliane Brown, Mary Cardon, Kurt Carpenter, Steven R. Corsi, Laura DeCicco, Julie Dietze, Nicola Evans, Edward Furlong, Carrie E. Givens, James Gray, Dale Griffin, Christopher Higgins, Michelle L. Hladik, Luke R. Iwanowicz, Celeste Journey, Kathryn Kuivila, Jason Masoner, Carrie McDonough, Michael Meyer, James Orlando, Mark Strynar, Christopher P. Weis, Vickie Wilson
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Central Plains Water Science Center, California Water Science Center, Central Midwest Water Science Center, Colorado Water Science Center, Eastern Ecological Science Center, Kansas Water Science Center, New Jersey Water Science Center, Oregon Water Science Center, South Atlantic Water Science Center (SAWSC), St. Petersburg Coastal and Marine Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, National Water Quality Laboratory
Patterns of host-associated fecal indicators driven by hydrology, precipitation, and land use attributes in Great Lakes watersheds Patterns of host-associated fecal indicators driven by hydrology, precipitation, and land use attributes in Great Lakes watersheds
Fecal contamination from sewage and agricultural runoff is a pervasive problem in Great Lakes watersheds. Most work examining fecal pollution loads relies on discrete samples of fecal indicators and modeling land use. In this study, we made empirical measurements of human and ruminant-associated fecal indicator bacteria and combined these with hydrological measurements in eight...
Authors
Deborah Dila, Steven R. Corsi, Peter Lenaker, Austin Baldwin, Melinda Bootsma, Sandra McLellan
Year-round presence of neonicotinoid insecticides in tributaries to the Great Lakes, USA Year-round presence of neonicotinoid insecticides in tributaries to the Great Lakes, USA
To better characterize the transport of neonicotinoid insecticides to the world's largest freshwater ecosystem, monthly samples (October 2015–September 2016) were collected from 10 major tributaries to the Great Lakes, USA. For the monthly tributary samples, neonicotinoids were detected in every month sampled and five of the six target neonicotinoids were detected. At least one...
Authors
Michelle L. Hladik, Steven R. Corsi, Dana Kolpin, Austin Baldwin, Brett R. Blackwell, Jenna Cavallin
Response to comment on “Primary sources and toxicity of PAHs in Milwaukee-area streambed sediments”—The authors' reply Response to comment on “Primary sources and toxicity of PAHs in Milwaukee-area streambed sediments”—The authors' reply
No abstract available.
Authors
Austin Baldwin, Steven R. Corsi, Michelle Lutz, Christopher Ingersoll, Rebecca Dorman, Christopher Magruder, Matthew Magruder
An “EAR” on environmental surveillance and monitoring: A case study on the use of Exposure–Activity Ratios (EARs) to prioritize sites, chemicals, and bioactivities of concern in Great Lakes waters An “EAR” on environmental surveillance and monitoring: A case study on the use of Exposure–Activity Ratios (EARs) to prioritize sites, chemicals, and bioactivities of concern in Great Lakes waters
Current environmental monitoring approaches focus primarily on chemical occurrence. However, based on concentration alone, it can be difficult to identify which compounds may be of toxicological concern and should be prioritized for further monitoring, in-depth testing, or management. This can be problematic because toxicological characterization is lacking for many emerging contaminants...
Authors
Brett R. Blackwell, Gerald T. Ankley, Steven R. Corsi, Laura DeCicco, Kieth A. Houck, Richard Judson, Shibin Li, Matthew Martin, Elizabeth Murphy, Anthony Schroeder, Edwin R. Smith, Joe Swintek, Daniel Villeneuve
Hydrologic, land cover, and seasonal patterns of waterborne pathogens in Great Lakes tributaries Hydrologic, land cover, and seasonal patterns of waterborne pathogens in Great Lakes tributaries
Great Lakes tributaries are known to deliver waterborne pathogens from a host of sources. To examine the hydrologic, land cover, and seasonal patterns of waterborne pathogens (i.e. protozoa (2), pathogenic bacteria (4) human viruses, (8) and bovine viruses (8)) eight rivers were monitored in the Great Lakes Basin over 29 months from February 2011 to June 2013. Sampling locations...
Authors
Peter Lenaker, Steven R. Corsi, Mark Borchardt, Susan Spencer, Austin Baldwin, Michelle Lutz
*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