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Jeff Steevens, PhD

Dr. Jeff Steevens is the acting Center Director and a Research Toxicologist at the Columbia Environmental Research Center.

His broad research interests include the bioavailability and toxicity of environmental contaminants in water and sediments. One of his current responsibilities is leading a multi-disciplinary team to determine the toxicity of contaminants of interest to the Department of Interior including algal toxins, metals, major ions, and emerging contaminants. 

Current Projects

  • Bioaccumulation and Toxicity of PFAS within Aquatic Systems.  Jeff co-leads the USGS PFAS Integrated Science Team.  He is actively doing research on the bioaccumulation and effects of PFAS in underrepresented aquatic taxa. Studies include the fate of PFAS within lower levels of aquatic food webs (biofilms and invertebrates). He is currently determining the toxicity of PFAS in freshwater mussels and mayflies.
  • Development of Toxicity Bioassay Methods.  His research is currently focusing on the effects of contaminants on freshwater mussels, mayflies, and other invertebrates. These methods include acute and chronic bioassays as well as field methods to determine in situ effects from nutrients and contaminants.
  • Natural Resource Damage Assessment and Restoration Expertise.  Jeff provides technical expertise for injury assessment at several sites including the Upper Columbia River, Tri-State Mining District, Little Calumet, IN and Sauget Creek, IL. 

Education and Certifications

  • Ph.D. in Pharmacology and Toxicology, University of Mississippi, Oxford, 1999

  • B.S. in Biochemistry (Minor in Geology), University of Missouri, Columbia, 1994

Affiliations and Memberships*

  • Society of Environmental Toxicology and Chemistry, 1993 – present

  • Mid-South Chapter, Society of Environmental Toxicology and Chemistry, 1996 – present

  • Freshwater Mollusk Conservation Society, 2020-present

  • American Chemical Society, 2013-present

  • Editorial Board Member, Bulletin of Environmental Contamination and Toxicology

  • Adjunct Professor, Arkansas State University, Biology Department, 2020-present

  • Associate Editor, Archives of Environmental Contamination and Toxicology

  • Editorial Board Member, Environmental Toxicology and Chemistry

  • Adjunct Professor, University of Missouri, College of Engineering, 2019-present

  • Adjunct Professor, University of Mississippi, Environmental Toxicology Research Program, School of Pharmacy and National Center for Natural Pharmaceutical Research, 2007-present

Science and Products

Filter Total Items: 13
A diagram showing the fate and transport of PFAS

Understanding the Dynamics of Per- and Polyfluoroalkyl Substances (PFAS): Insights from USGS Research

The USGS Environmental Health (EH) Program research where per- and polyfluoroalkyl substances PFAS are found, how they move and change in the environment, how they might affect both ecosystems and human health, and ways to reduce their impact. The three teams focusing on these issues within the EH Program include: 1) the PFAS Integrated Science Team, 2) the PFAS Core Technology Team, and 3) the...
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Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Understanding the Dynamics of Per- and Polyfluoroalkyl Substances (PFAS): Insights from USGS Research

Understanding the Dynamics of Per- and Polyfluoroalkyl Substances (PFAS): Insights from USGS Research

The USGS Environmental Health (EH) Program research where per- and polyfluoroalkyl substances PFAS are found, how they move and change in the environment, how they might affect both ecosystems and human health, and ways to reduce their impact. The three teams focusing on these issues within the EH Program include: 1) the PFAS Integrated Science Team, 2) the PFAS Core Technology Team, and 3) the...
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Canyon Mine Sampling

Minerals Resources Life Cycle Integrated Science Team

The Minerals Resources Life Cycle Integrated Science Team focuses on contaminant exposures in the environment that might originate from mineral resource activities including, transportation, storage, extraction and waste management. Perceived health risks to humans and other organisms will be distinguished from actual risks, if any. If actual risks are identified the science produced by this team...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Minerals Resources Life Cycle Integrated Science Team

Minerals Resources Life Cycle Integrated Science Team

The Minerals Resources Life Cycle Integrated Science Team focuses on contaminant exposures in the environment that might originate from mineral resource activities including, transportation, storage, extraction and waste management. Perceived health risks to humans and other organisms will be distinguished from actual risks, if any. If actual risks are identified the science produced by this team...
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infographic displaying economic statistics of various characteristics and challenges in ecosystems science.

USGS Research on 6PPD-quinone: Where the Rubber Meets the Road

Stormwater and road runoff are recognized forms of pollution that can contain chemicals harmful to fish and other aquatic animals. This includes 6PPD-quinone, the oxidized form of the chemical compound 6PPD that is used to prevent tires from degrading and cracking, ensuring driver safety. As 6PPD-quinone sheds from tires during normal wear it can enter streams in stormwater runoff.
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Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Columbia Environmental Research Center, Western Fisheries Research Center
USGS Research on 6PPD-quinone: Where the Rubber Meets the Road

USGS Research on 6PPD-quinone: Where the Rubber Meets the Road

Stormwater and road runoff are recognized forms of pollution that can contain chemicals harmful to fish and other aquatic animals. This includes 6PPD-quinone, the oxidized form of the chemical compound 6PPD that is used to prevent tires from degrading and cracking, ensuring driver safety. As 6PPD-quinone sheds from tires during normal wear it can enter streams in stormwater runoff.
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Person holding mussels

Bringing Back Mussels: CERC's Restoration Efforts in the Clinton Watershed

CERC scientists plan to reintroduce mussels in an area where species have diminished.
By
Columbia Environmental Research Center
Bringing Back Mussels: CERC's Restoration Efforts in the Clinton Watershed

Bringing Back Mussels: CERC's Restoration Efforts in the Clinton Watershed

CERC scientists plan to reintroduce mussels in an area where species have diminished.
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Graphic depicting urban stormwater pollution impacting coho salmon.

6PPDQ

6PPD-quinone is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.
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Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Columbia Environmental Research Center, Western Fisheries Research Center
6PPDQ

6PPDQ

6PPD-quinone is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.
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Acute and chronic toxicity of Ni and Zn to a mayfly

6PPD Research at Columbia Environmental Research Center

CERC scientists are evaluating the exposure and effects of 6PPD.
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Columbia Environmental Research Center
6PPD Research at Columbia Environmental Research Center

6PPD Research at Columbia Environmental Research Center

CERC scientists are evaluating the exposure and effects of 6PPD.
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Filter Total Items: 19

Survival and bioaccumulation data for sensitive salmonids exposed to 6PPDQ with additional survival data for two bass species Survival and bioaccumulation data for sensitive salmonids exposed to 6PPDQ with additional survival data for two bass species

This data set includes survival data for five fish species [Coho Salmon (Oncorhynchus kisutch); Brook Trout (Salvelinus fontinalis); Rainbow Trout (Oncorhynchus mykiss); Smallmouth Bass (Micropterus dolomieu); Largemouth Bass (Micropterus nigricans)] exposed to various concentrations of 6PPD-quinone (6PPDQ) for up to 96 hours and then held in clean water for one week post exposure...
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Columbia Environmental Research Center

Images of two standard crude oils collected using a fluorescent camera device to train and optimize a machine learning model for real-time oil spill concentration assessment collected from November 7, 2023, to July 8, 2024 Images of two standard crude oils collected using a fluorescent camera device to train and optimize a machine learning model for real-time oil spill concentration assessment collected from November 7, 2023, to July 8, 2024

The data are a set of fluorescent images that were generated to support the development of a machine learning model. The approach combines fluorescence imaging, deep learning, a mobile application, and a data management system for automated and real-time oil spill assessment. The dataset is comprised of 1,530 fluorescence images from two distinct oil types, a napthalenic crude oil (NACO)...
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Columbia Environmental Research Center

Survival of juvenile mussels (Lampsilis siliquoidea) exposed to 6PPD and transformation products Survival of juvenile mussels (Lampsilis siliquoidea) exposed to 6PPD and transformation products

This data set includes mortality data from acute toxicity tests with juveniles of the mussel, Lampsilis siliquoidea exposed to 6PPD and 6PPDQ. Concurrently collected analytical chemistry and general water quality measurements are included.
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Columbia Environmental Research Center

Water Quality Data from the Clinton River watershed near Detroit, MI Water Quality Data from the Clinton River watershed near Detroit, MI

This data release contains water quality data collected in the field during an in-situ mussel exposure. We collected dissolved oxygen, temperature, conductivity, and water depth data using a sensor silo to assess habitat conditions for a potential mussel restoration. Additionally, we collected particle count data to quantify food availability for mussels and water quality data...
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Columbia Environmental Research Center

Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021 Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021

Two laboratory experiments were conducted to understand PFOS (perfluorooctanesulfonic acid) bioaccumulation in freshwater benthic diatoms (Mayamaea atomus). The first experiment tested bioconcentration at multiple PFOS concentrations (0, 0.01, 0.1, 1, 10, 100 micrograms per liter) after 7 days of exposure. The second explored uptake and depuration of 0.1 micrograms per liter PFOS at...
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Columbia Environmental Research Center

Stormwater concentrations of tire wear particle leachate compounds and survival of early instar mayflies (Neocloeon triangulifer) exposed to 6PPD and transformation products Stormwater concentrations of tire wear particle leachate compounds and survival of early instar mayflies (Neocloeon triangulifer) exposed to 6PPD and transformation products

This data set includes concentrations of selected transformation products (TPs) of the tire antioxidant, 6PPD, including 6PPD-quinone (6PPDQ) and 4-hydroxydiphenylamine (4-HDPA) in water samples collected during a rain event from two urban rivers in the Greater Toronto Area, Ontario, Canada. In addition, mortality data from acute toxicity tests with aquatic larvae of the mayfly...
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Columbia Environmental Research Center
Filter Total Items: 48

Are behavioural ecotoxicity endpoints relevant at the population level? Evidence-based insights for environmental protection Are behavioural ecotoxicity endpoints relevant at the population level? Evidence-based insights for environmental protection

A substantial body of evidence exists demonstrating that exposure to environmental contaminants can alter animal behavior. Moreover, methodological and technological advancements, as well as increasing standardization, mean that behavioral ecotoxicity studies are more rigorous and reliable than ever before. Despite this, behavioral data are still seldom used in the risk assessment and...
Authors
Michael G. Bertram, Marlene Ågerstrand, Jack A. Brand, Bryan W. Brooks, ZhiChao Dang, Alex T. Ford, Henner Hollert, Matthew K. LeFauve, Jack L. Manera, Jake M. Martin, Marcus Michelangeli, Maria Moiron, Eleanor R. Moore, Holly J. Puglis, Andrew Sih, Jeffery A. Steevens, Eli S.J. Thoré, Bob B.M. Wong, Lauren Zink, Tomas Bodin
By
Ecosystems Mission Area, Columbia Environmental Research Center

Insights and strategic opportunities from the USGS 2024 Per- and Polyfluoroalkyl Substances (PFAS) Interagency Workshop Insights and strategic opportunities from the USGS 2024 Per- and Polyfluoroalkyl Substances (PFAS) Interagency Workshop

Introduction In 2021, the U.S. Geological Survey (USGS) published Circular 1490 titled, “Integrated Science for the Study of Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) in the Environment: A Strategic Science Vision for the U.S. Geological Survey” (Tokranov and others, 2021). Circular 1490 was created to be a resource for USGS scientists prioritizing and planning research...
Authors
Deborah D. Iwanowicz, Kimberly R. Beisner, Paul M. Bradley, Patricia R. Bright, Juliane B. Brown, Christopher J. Churchill, Stephanie E. Gordon, Natalie Karouna-Renier, Dana W. Kolpin, Rebecca B. Lambert, Erin L. Pulster, Rip S. Shively, Kelly Smalling, Jeffery A. Steevens, Andrea K. Tokranov
By
Ecosystems Mission Area

Evaluation of the effects of sediments contaminated by industrial discharges to a unionid mussel (Fatmucket, Lampsilis siliquoidea) and a common test benthic organism (Amphipod, Hyalella azteca) Evaluation of the effects of sediments contaminated by industrial discharges to a unionid mussel (Fatmucket, Lampsilis siliquoidea) and a common test benthic organism (Amphipod, Hyalella azteca)

Freshwater mussels are among the most sensitive species to a variety of chemicals in water exposures. However, few studies have been conducted to evaluate the effect of toxicants in sediments on mussels. Industrial discharges containing polyaromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and metals entered the Kanawha River surrounding Blaine Island, South Charleston...
Authors
Chris D. Ivey, Jeffery A. Steevens, Ning Wang, Kathleen Patnode, James L. Kunz, John M. Besser
By
Ecosystems Mission Area, Columbia Environmental Research Center

Real-time oil spill concentration assessment through fluorescence imaging and deep learning Real-time oil spill concentration assessment through fluorescence imaging and deep learning

Oil spills may pose severe ecological and socioeconomic threats, necessitating rapid and accurate environmental assessment. Traditional assessment methods used to determine the extent of a spill including gas chromatography-mass spectrometry, satellite imaging, and visual surveys, are often time-consuming, expensive, and limited by weather conditions or sampling constraints. Furthermore...
Authors
Biplab Poudel, Jiacheng Xie, Congyu Guo, Olivia Watt, Erin L. Pulster, Rishi J. Patel, Jeffery A. Steevens, Dong Xu
By
Ecosystems Mission Area, Columbia Environmental Research Center

Concentration dependency of PFOS bioaccumulation by freshwater benthic algae Concentration dependency of PFOS bioaccumulation by freshwater benthic algae

Although perfluorooctanesulfonic acid (PFOS) has been voluntarily phased out, it remains the most abundant and frequently detected PFAS compound in biota worldwide. A deeper understanding of how PFOS enters the aquatic food web at the energetic base is needed to better characterize and predict the general patterns of PFAS trophic transfer. Research on bioaccumulation by primary producers...
Authors
Alison M. Zachritz, Jeffery A. Steevens, Daniele A. Miranda, Brittany G. Perrotta, Rebecca A. Dorman, Heather D. Whitehead, Erin L. Pulster, David Walters, David J. Soucek, Graham F. Peaslee, Gary A. Lamberti
By
Ecosystems Mission Area, Columbia Environmental Research Center

Evaluating episodic sediment deposition zones in freshwater mussel habitats across Missouri, USA Evaluating episodic sediment deposition zones in freshwater mussel habitats across Missouri, USA

Point-source sedimentation, such as spills from construction-related activities, can introduce substantial sediments into streams in the short term, potentially leading to mussel burial. To estimate downstream areas where freshwater mussels might face threats from sediment burial within the mussel habitats of Missouri streams and rivers, we examined 49 reaches where both field...
Authors
Qingqing Sun, Bin Wang, Brandon James Sansom, Kathleen Trauth, Henry Brown, Wenyu Zhu, James L. Kunz, M. Christopher Barnhart, Stephen E. McMurray, Andrew D Roberts, Christopher Shulse, Caleb Knerr, Jeffery A. Steevens, Baolin Deng
By
Ecosystems Mission Area, Columbia Environmental Research Center

Non-USGS Publications**

Johnson, D.R., Boyd, R.E., Bednar, A.J., Weiss, C.A., Hull, M.S., Coleman, J.G., Kennedy, A.J., Banks, C.J., and Steevens, J.A., 2018, Effects of soot by-product from the synthesis of engineered metallofullerene nanomaterials on terrestrial invertebrates: Environmental Toxicology and Chemistry, v. 37, no. 6, p. 1594-1605.
Brooks, B.W., Lazorchak, J.M., Howard, M.D.A., Johnson, M.-V.V., Morton, S.L., Perkins, D.A.K., Reavie, E.D., Scott, G.I., Smith, S.A., and Steevens, J.A., 2016, Are harmful algal blooms becoming the greatest inland water quality threat to public health and aquatic ecosystems?: Environmental Toxicology and Chemistry, v. 35, no. 1, p. 6-13
Stanley, J.K., Laird, J.G., Kennedy, A.J., and Steevens, J.A., 2016, Sublethal effects of multiwalled carbon nanotube exposure in the invertebrate Daphnia magna: Environmental Toxicology and Chemistry, v. 35, no. 1, p. 200-204
Kennedy, A.J., Hull, M.S., Diamond, S., Chappell, M., Bednar, A.J., Laird, J.G., Melby, N.L., and Steevens, J.A., 2015, Gaining a critical mass: A dose metric conversion case study using silver nanoparticles: Environmental Science & Technology, v. 49, no. 20, p. 12490-12499
Brame, J.A., Poda, A.R., Kennedy, A.J., and Steevens, J.A., 2015, EHS testing of products containing nanomaterials: What is nano release?: Environmental Science & Technology, v. 49, no. 19, p. 11245-11246
Cuddy, M.F., Poda, A.R., Moser, R.D., Weiss, C.A., Cairns, C., and Steevens, J.A., 2016, A weight-of-evidence approach to identify nanomaterials in consumer products: a case study of nanoparticles in commercial sunscreens: Journal of Exposure Science and Environmental Epidemiology, v. 26, no. 1, p. 26-34
Garcia-Reyero, N., Thornton, C., Hawkins, A.D., Escalon, L., Kennedy, A.J., Steevens, J.A., and Willett, K.L., 2015, Assessing the exposure to nanosilver and silver nitrate on fathead minnow gill gene expression and mucus production: Environmental Nanotechnology, Monitoring & Management, v. 4, no. Supplement C, p. 58-66
Fadel, T.R., Steevens, J.A., Thomas, T.A., and Linkov, I., 2015, The challenges of nanotechnology risk management: Nano Today, v. 10, no. 1, p. 6-10
Collier, Z.A., Kennedy, A.J., Poda, A.R., Cuddy, M.F., Moser, R.D., MacCuspie, R.I., Harmon, A., Plourde, K., Haines, C.D., and Steevens, J.A., 2015, Tiered guidance for risk-informed environmental health and safety testing of nanotechnologies: Journal of Nanoparticle Research, v. 17, no. 3, p. 155
Steevens, J., Chappell, M., Janzen, D., Edwards, D., and Shih, W., 2014, Outwitting the uncertainty of nanotechnology risks through environmental life cycle assessment: Nanotechnology, v. 3, p. 113-114
Hawkins, A.D., Thornton, C., Kennedy, A.J., Bu, K., Cizdziel, J., Jones, B.W., Steevens, J.A., and Willett, K.L., 2015, Gill histopathologies following exposure to nanosilver or silver nitrate: Journal of Toxicology and Environmental Health, Part A, v. 78, no. 5, p. 301-315
Hawkins, A.D., Thornton, C., Steevens, J.A., and Willett, K.L., 2014, Alteration in Pimephales promelas mucus production after exposure to nanosilver or silver nitrate: Environmental Toxicology and Chemistry, v. 33, no. 12, p. 2869-2872
Hawkins, A.D., Bednar, A.J., Cizdziel, J.V., Bu, K., Steevens, J.A., and Willett, K.L., 2014, Identification of silver nanoparticles in Pimephales promelas gastrointestinal tract and gill tissues using flow field flow fractionation ICP-MS: RSC Advances, v. 4, no. 78, p. 41277-41280
Garcia-Reyero, N., Kennedy, A.J., Escalon, B.L., Habib, T., Laird, J.G., Rawat, A., Wiseman, S., Hecker, M., Denslow, N., Steevens, J.A., and Perkins, E.J., 2014, Differential effects and potential adverse outcomes of ionic silver and silver nanoparticles in vivo and in vitro: Environmental Science & Technology, v. 48, no. 8, p. 4546-4555
Palmqvist, A., Baker, L., Forbes, V.E., Gergs, A., von der Kammer, F., Luoma, S., Lützhøft, H.C.H., Salinas, E., Sorensen, M., and Steevens, J., 2015, Nanomaterial environmental risk assessment: Integrated Environmental Assessment and Management, v. 11, no. 2, p. 333-335
Harmon, A.R., Kennedy, A.J., Poda, A.R., Bednar, A.J., Chappell, M.A., and Steevens, J.A., 2014, Determination of nanosilver dissolution kinetics and toxicity in an environmentally relevant aqueous medium: Environmental Toxicology and Chemistry, v. 33, no. 8, p. 1783-1791
Chappell, M.A., Seiter, J.M., Bednar, A.J., Price, C.L., Averett, D., Lafferty, B., Tappero, R., Stanley, J.S., Kennedy, A.J., Steevens, J.A., Zhou, P., Morikawa, E., Merchan, G., and Roy, A., 2014, Stability of solid-phase selenium species in fly ash after prolonged submersion in a natural river system: Chemosphere, v. 95, no. Supplement C, p. 174-181
Kennedy, A.J., Melby, N.L., Moser, R.D., Bednar, A.J., Son, S.F., Lounds, C.D., Laird, J.G., Nellums, R.R., Johnson, D.R., and Steevens, J.A., 2013, Fate and toxicity of CuO nanospheres and nanorods used in Al/CuO nanothermites before and after combustion: Environmental Science & Technology, v. 47, no. 19, p. 11258-11267
Coleman, J.G., Kennedy, A.J., Bednar, A.J., Ranville, J.F., Laird, J.G., Harmon, A.R., Hayes, C.A., Gray, E.P., Higgins, C.P., Lotufo, G., and Steevens, J.A., 2013, Comparing the effects of nanosilver size and coating variations on bioavailability, internalization, and elimination, using Lumbriculus variegatus: Environmental Toxicology and Chemistry, v. 32, no. 9, p. 2069-2077
Bednar, A.J., Averett, D.E., Seiter, J.M., Lafferty, B., Jones, W.T., Hayes, C.A., Chappell, M.A., Clarke, J.U., and Steevens, J.A., 2013, Characterization of metals released from coal fly ash during dredging at the Kingston ash recovery project: Chemosphere, v. 92, no. 11, p. 1563-1570
Tang, K., Liu, X., Harper, S.L., Steevens, J.A., and Xu, R., 2013, NEIMiner: nanomaterial environmental impact data miner: International Journal of Nanomedicine, v. 8, no. Suppl 1, p. 15-29.
Liu, X., Tang, K., Harper, S., Harper, B., Steevens, J.A., and Xu, R., 2013, Predictive modeling of nanomaterial exposure effects in biological systems: International Journal of Nanomedicine, v. 8, no. Suppl 1, p. 31-43
Poda, A.R., Moser, R.D., Cuddy, M.F., Doorenbos, Z., Lafferty, B.J., Weiss, C.A., Harmon, A., Chappell, M.A., and Steevens, J. A., 2013, Nano-aluminum thermite formulations: Characterizing the fate properties of a nanotechnology during use: Journal of Nanomaterials & Molecular Nanotechnology, v. 2, no. 1, p. 1-9
Bednar, A.J., Poda, A.R., Mitrano, D.M., Kennedy, A.J., Gray, E.P., Ranville, J.F., Hayes, C.A., Crocker, F.H., and Steevens, J.A., 2013, Comparison of on-line detectors for field flow fractionation analysis of nanomaterials: Talanta, v. 104, no. Supplement C, p. 140-148
Stanley, J.K., Kennedy, A.J., Bednar, A.J., Chappell, M.A., Seiter, J.M., Averett, D.E., and Steevens, J.A., 2013, Impact assessment of dredging to remove coal fly ash at the Tennessee Valley Authority Kingston Fossil plant using fathead minnow elutriate exposures: Environmental Toxicology and Chemistry, v. 32, no. 4, p. 822-830
Handy, R.D., Cornelis, G., Fernandes, T., Tsyusko, O., Decho, A., Sabo-Attwood, T., Metcalfe, C., Steevens, J.A., Klaine, S.J., Koelmans, A.A., and Horne, N., 2012, Ecotoxicity test methods for engineered nanomaterials: Practical experiences and recommendations from the bench: Environmental Toxicology and Chemistry, v. 31, no. 1, p. 15-31
Xu, R., Tang, K., Liu, X., Harper, S., and Steevens, J.A., 2012, NEIMiner: A model driven data mining system for studying environmental impact of nanomaterials, Proceedings of the 2012 IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW), IEEE Computer Society, p. 895-902
Harper, B., Tang, K., Liu, X., Harper, S., Xu, R., and Steevens, J.A., 2012, Predictive modeling of nanomaterial biological effects, Proceedings of the 2012 IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW), IEEE Computer Society, p. 859-863
Chappell, M.A., Miller, L.F., George, A.J., Pettway, B.A., Price, C.L., Porter, B.E., Bednar, A.J., Seiter, J.M., Kennedy, A.J., and Steevens, J.A., 2011, Simultaneous dispersion–dissolution behavior of concentrated silver nanoparticle suspensions in the presence of model organic solutes: Chemosphere, v. 84, no. 8, p. 1108-1116
Bennett, E.R., Steevens, J.A., Lotufo, G.R., Paterson, G., and Drouillard, K.G., 2011, Novel control and steady-state correction method for standard 28-day bioaccumulation tests using Nereis virens: Environmental Toxicology and Chemistry, v. 30, no. 6, p. 1366-1375
Poda, A.R., Bednar, A.J., Kennedy, A.J., Harmon, A., Hull, M., Mitrano, D.M., Ranville, J.F., and Steevens, J., 2011, Characterization of silver nanoparticles using flow-field flow fractionation interfaced to inductively coupled plasma mass spectrometry: Journal of Chromatography A, v. 1218, no. 27, p. 4219-4225
Kennedy, A.J., Hull, M.S., Bednar, A.J., Goss, J.D., Gunter, J.C., Bouldin, J.L., Vikesland, P.J., and Steevens, J.A., 2010, Fractionating nanosilver: Importance for determining toxicity to aquatic test organisms: Environmental Science & Technology, v. 44, no. 24, p. 9571-9577
Bednar, A.J., Chappell, M.A., Seiter, J.M., Stanley, J.K., Averett, D.E., Jones, W.T., Pettway, B.A., Kennedy, A.J., Hendrix, S.H., and Steevens, J.A., 2010, Geochemical investigations of metals release from submerged coal fly ash using extended elutriate tests: Chemosphere, v. 81, no. 11, p. 1393-1400
McElroy, A.E., Barron, M.G., Beckvar, N., Driscoll, S.B.K., Meador, J.P., Parkerton, T.F., Preuss, T.G., and Steevens, J.A., 2011, A review of the tissue residue approach for organic and organometallic compounds in aquatic organisms: Integrated Environmental Assessment and Management, v. 7, no. 1, p. 50-74
Stanley, J.K., Kennedy, A.J., Farrar, J.D., Mount, D.R., and Steevens, J.A., 2010, Evaluation of reduced sediment volume procedures for acute toxicity tests using the estuarine amphipod Leptocheirus plumulosus: Environmental Toxicology and Chemistry, v. 29, no. 12, p. 2769-2776
Coleman, J.G., Johnson, D.R., Stanley, J.K., Bednar, A.J., Weiss, C.A., Boyd, R.E., and Steevens, J.A., 2010, Assessing the fate and effects of nano aluminum oxide in the terrestrial earthworm, Eisenia fetida: Environmental Toxicology and Chemistry, v. 29, no. 7, p. 1575-1580
Stanley, J.K., Coleman, J.G., Weiss, C.A., and Steevens, J.A., 2010, Sediment toxicity and bioaccumulation of nano and micron-sized aluminum oxide: Environmental Toxicology and Chemistry, v. 29, no. 2, p. 422-429
Johnson, D.R., Methner, M.M., Kennedy, A.J., and Steevens, J.A., 2010, Potential for occupational exposure to engineered carbon-based nanomaterials in environmental laboratory studies: Environmental Health Perspectives, v. 118, no. 1, p. 49-54
Kane Driscoll, S.B., McArdle, M.E., Menzie, C.A., Reiss, M., and Steevens, J.A., 2010, A framework for using dose as a metric to assess toxicity of fish to PAHs: Ecotoxicology and Environmental Safety, v. 73, no. 4, p. 486-490
Kennedy, A.J., Gunter, J.C., Chappell, M.A., Goss, J.D., Hull, M.S., Kirgan, R.A., and Steevens, J.A., 2009, Influence of nanotube preparation in aquatic bioassays: Environmental Toxicology and Chemistry, v. 28, no. 9, p. 1930-1938. .
Kennedy, A.J., Steevens, J.A., Lotufo, G.R., Farrar, J.D., Reiss, M.R., Kropp, R.K., Doi, J., and Bridges, T.S., 2009, A comparison of acute and chronic toxicity methods for marine sediments: Marine Environmental Research, v. 68, no. 3, p. 118-127
Hull, M.S., Kennedy, A.J., Steevens, J.A., Bednar, A.J., Weiss, J.C.A., and Vikesland, P.J., 2009, Release of metal impurities from carbon nanomaterials influences aquatic toxicity: Environmental Science & Technology, v. 43, no. 11, p. 4169-4174
Chappell, M.A., George, A.J., Dontsova, K.M., Porter, B.E., Price, C.L., Zhou, P., Morikawa, E., Kennedy, A.J., and Steevens, J.A., 2009, Surfactive stabilization of multi-walled carbon nanotube dispersions with dissolved humic substances: Environmental Pollution, v. 157, no. 4, p. 1081-1087
Tervonen, T., Linkov, I., Figueira, J.R., Steevens, J., Chappell, M., and Merad, M., 2009, Risk-based classification system of nanomaterials: Journal of Nanoparticle Research, v. 11, no. 4, p. 757-766
Linkov, I., Steevens, J., Adlakha-Hutcheon, G., Bennett, E., Chappell, M., Colvin, V., Davis, J.M., Davis, T., Elder, A., Foss Hansen, S., Hakkinen, P.B., Hussain, S.M., Karkan, D., Korenstein, R., Lynch, I., Metcalfe, C., Ramadan, A.B., and Satterstrom, F.K., 2009, Emerging methods and tools for environmental risk assessment, decision-making, and policy for nanomaterials: summary of NATO Advanced Research Workshop: Journal of Nanoparticle Research, v. 11, no. 3, p. 513-527
Kennedy, A.J., Hull, M.S., Steevens, J.A., Dontsova, K.M., Chappell, M.A., Gunter, J.C., and Weiss, C.A., 2008, Factors influencing the partitioning and toxicity of nanotubes in the aquatic environment: Environmental Toxicology and Chemistry, v. 27, no. 9, p. 1932-1941
Sims, J.G., and Steevens, J.A., 2008, The role of metabolism in the toxicity of 2,4,6-trinitrotoluene and its degradation products to the aquatic amphipod Hyalella azteca: Ecotoxicology and Environmental Safety, v. 70, no. 1, p. 38-46
Dortch, M.S., Zakikhani, M., Kim, S.-C., and Steevens, J.A., 2008, Modeling water and sediment contamination of Lake Pontchartrain following pump-out of Hurricane Katrina floodwater: Journal of Environmental Management, v. 87, no. 3, p. 429-442
Linkov, I., Satterstrom, F.K., Steevens, J., Ferguson, E., and Pleus, R.C., 2007, Multi-criteria decision analysis and environmental risk assessment for nanomaterials: Journal of Nanoparticle Research, v. 9, no. 4, p. 543-554
Inouye, L.S., Yoo, L.J., Talent, L.G., Clarke, J.U., Jones, R.P., Steevens, J.A., and Boyd, R.E., 2007, Assessment of lead uptake in reptilian prey species: Chemosphere, v. 68, no. 8, p. 1591-1596
Fristachi, A., Rice, G., Steevens, J., and Linkov, I., 2007, A preliminary exposure assessment of microcystins from consumption of drinking water in the United States: Lake and Reservoir Management, v. 23, no. 2, p. 203-210
Suedel, B.C., Steevens, J.A., Kennedy, A.J., Brasfield, S.M., and Ray, G.L., 2007, Environmental consequences of water pumped from greater New Orleans following Hurricane Katrina:  Chemical, toxicological, and infaunal analysis: Environmental Science & Technology, v. 41, no. 7, p. 2594-2601
Perkins, E.J., Gust, K.A., and Steevens, J., 2007, Toxicogenomic assessment of the population level impacts of contaminants: Integrated Environmental Assessment and Management, v. 3, no. 4, p. 562-564
Yoo, L.J., Lotufo, G.R., Gibson, A.B., Steevens, J.A., and Sims, J.G., 2006, Toxicity and bioaccumulation of 2, 4, 6-trinitrotoluene in fathead minnow (Pimephales promelas): Environmental Toxicology and Chemistry, v. 25, no. 12, p. 3253-3260
Kennedy, A.J., Millward, R.N., Steevens, J.A., Lynn, J.W., and Perry, K.D., 2006, Relative Sensitivity of zebra mussel (Dreissena polymorpha) life-stages to two copper sources: Journal of Great Lakes Research, v. 32, no. 3, p. 596-606
Steevens, J.A., Reiss, M.R., and Pawlisz, A.V., 2005, A methodology for deriving tissue residue benchmarks for aquatic biota: A case study for fish exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin and equivalents: Integrated Environmental Assessment and Management, v. 1, no. 2, p. 142-151
Landrum, P.F., Steevens, J.A., McElroy, M., Gossiaux, D.C., Lewis, J.S., and Robinson, S.D., 2005, Time-dependent toxicity of dichlorodiphenyldichloroethylene to Hyalella azteca: Environmental Toxicology and Chemistry, v. 24, no. 1, p. 211-218
Conder, J.M., La Point, T.W., Steevens, J.A., and Lotufo, G.R., 2004, Recommendations for the assessment of TNT toxicity in sediment: Environmental Toxicology and Chemistry, v. 23, no. 1, p. 141-149
Conder, J.M., Lotufo, G.R., Bowen, A.T., Turner, P.K., La Point, T.W., and Steevens, J.A., 2004, Solid phase microextraction fibers for estimating the toxicity of nitroaromatic compounds: Aquatic Ecosystem Health & Management, v. 7, no. 3, p. 387-397
Conder, J.M., La Point, T.W., Lotufo, G.R., and Steevens, J.A., 2003, Nondestructive, minimal-disturbance, direct-burial solid-phase microextraction fiber technique for measuring TNT in sediment: Environmental Science & Technology, v. 37, no. 8, p. 1625-1632
Steevens, J.A., Duke, B.M., Lotufo, G.R., and Bridges, T.S., 2002, Toxicity of the explosives 2,4,6-trinitrotoluene, hexahydro-1,3,5-trinitro-1,3,5-triazine, and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine in sediments to Chironomus tentans and Hyalella azteca: Low-dose hormesis and high-dose mortality: Environmental Toxicology and Chemistry, v. 21, no. 7, p. 1475-1482
Steevens, J.A., Summers, J.K., and Benson, W.H., 2001, Assessing stressors in coastal ecosystems: An approach to the patient: Human and Ecological Risk Assessment: An International Journal, v. 7, no. 5, p. 1447-1455
Huggett, D.B., Steevens, J.A., Allgood, J.C., Lutken, C.B., Grace, C.A., and Benson, W.H., 2001, Mercury in sediment and fish from North Mississippi Lakes: Chemosphere, v. 42, no. 8, p. 923-929
Steevens, J.A., and Benson, W.H., 2001, Toxicokinetic interactions and survival of Hyalella azteca exposed to binary mixtures of chlorpyrifos, dieldrin, and methyl mercury: Aquatic Toxicology, v. 51, no. 4, p. 377-388
Steevens, J.A., and Benson, W.H., 2000, Interactions of chlorpyrifos and methyl mercury: A mechanistic approach to assess chemical mixtures: Marine Environmental Research, v. 50, no. 1, p. 113-117
Steevens, J.A., and Benson, W.H., 1999, Toxicological interactions of chlorpyrifos and methyl mercury in the amphipod, Hyalella azteca: Toxicological Sciences, v. 52, no. 2, p. 168-177
Steevens, J.A., Slattery, M., Schlenk, D., Aryl, A., and Benson, W.H., 1999, Effects of ultraviolet-B light and polyaromatic hydrocarbon exposure on sea urchin development and bacterial bioluminescence: Marine Environmental Research, v. 48, no. 4, p. 439-457
Steevens, J.A., Vansal, S.S., Kallies, K.W., Knight, S.S., Cooper, C.M., and Benson, W.H., 1998, Toxicological evaluation of constructed wetland habitat sediments utilizing Hyalella azteca 10-day sediment toxicity test and bacterial bioluminescence: Chemosphere, v. 36, no. 15, p. 3167-3180
Steevens, J.A., and Benson, W.H., 1998, Hyalella azteca 10-day sediment toxicity test: Comparison of growth measurement endpoints: Environmental Toxicology and Water Quality, v. 13, no. 3, p. 243-248
Schlenk, D., Wolford, L., Chelius, M., Steevens, J., and Chan, K.M., 1997, Effect of arsenite, arsenate, and the herbicide monosodium methyl arsonate (MSMA) on hepatic metallothionein expression and lipid peroxidation in channel catfish: Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, v. 118, no. 2, p. 177-183

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

CERC’s Research Supporting Conservation of Endangered Mussels Featured in the Columbia Missourian

CERC’s Research Supporting Conservation of Endangered Mussels Featured in the Columbia Missourian

CERC scientist James Kunz is featured in the Columbia Missourian on USGS research related to endangered mussels.

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Science and Products

Filter Total Items: 13
A diagram showing the fate and transport of PFAS

Understanding the Dynamics of Per- and Polyfluoroalkyl Substances (PFAS): Insights from USGS Research

The USGS Environmental Health (EH) Program research where per- and polyfluoroalkyl substances PFAS are found, how they move and change in the environment, how they might affect both ecosystems and human health, and ways to reduce their impact. The three teams focusing on these issues within the EH Program include: 1) the PFAS Integrated Science Team, 2) the PFAS Core Technology Team, and 3) the...
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Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Understanding the Dynamics of Per- and Polyfluoroalkyl Substances (PFAS): Insights from USGS Research

Understanding the Dynamics of Per- and Polyfluoroalkyl Substances (PFAS): Insights from USGS Research

The USGS Environmental Health (EH) Program research where per- and polyfluoroalkyl substances PFAS are found, how they move and change in the environment, how they might affect both ecosystems and human health, and ways to reduce their impact. The three teams focusing on these issues within the EH Program include: 1) the PFAS Integrated Science Team, 2) the PFAS Core Technology Team, and 3) the...
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Canyon Mine Sampling

Minerals Resources Life Cycle Integrated Science Team

The Minerals Resources Life Cycle Integrated Science Team focuses on contaminant exposures in the environment that might originate from mineral resource activities including, transportation, storage, extraction and waste management. Perceived health risks to humans and other organisms will be distinguished from actual risks, if any. If actual risks are identified the science produced by this team...
By
Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology
Minerals Resources Life Cycle Integrated Science Team

Minerals Resources Life Cycle Integrated Science Team

The Minerals Resources Life Cycle Integrated Science Team focuses on contaminant exposures in the environment that might originate from mineral resource activities including, transportation, storage, extraction and waste management. Perceived health risks to humans and other organisms will be distinguished from actual risks, if any. If actual risks are identified the science produced by this team...
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infographic displaying economic statistics of various characteristics and challenges in ecosystems science.

USGS Research on 6PPD-quinone: Where the Rubber Meets the Road

Stormwater and road runoff are recognized forms of pollution that can contain chemicals harmful to fish and other aquatic animals. This includes 6PPD-quinone, the oxidized form of the chemical compound 6PPD that is used to prevent tires from degrading and cracking, ensuring driver safety. As 6PPD-quinone sheds from tires during normal wear it can enter streams in stormwater runoff.
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Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Columbia Environmental Research Center, Western Fisheries Research Center
USGS Research on 6PPD-quinone: Where the Rubber Meets the Road

USGS Research on 6PPD-quinone: Where the Rubber Meets the Road

Stormwater and road runoff are recognized forms of pollution that can contain chemicals harmful to fish and other aquatic animals. This includes 6PPD-quinone, the oxidized form of the chemical compound 6PPD that is used to prevent tires from degrading and cracking, ensuring driver safety. As 6PPD-quinone sheds from tires during normal wear it can enter streams in stormwater runoff.
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Person holding mussels

Bringing Back Mussels: CERC's Restoration Efforts in the Clinton Watershed

CERC scientists plan to reintroduce mussels in an area where species have diminished.
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Columbia Environmental Research Center
Bringing Back Mussels: CERC's Restoration Efforts in the Clinton Watershed

Bringing Back Mussels: CERC's Restoration Efforts in the Clinton Watershed

CERC scientists plan to reintroduce mussels in an area where species have diminished.
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Graphic depicting urban stormwater pollution impacting coho salmon.

6PPDQ

6PPD-quinone is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.
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Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Columbia Environmental Research Center, Western Fisheries Research Center
6PPDQ

6PPDQ

6PPD-quinone is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.
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Acute and chronic toxicity of Ni and Zn to a mayfly

6PPD Research at Columbia Environmental Research Center

CERC scientists are evaluating the exposure and effects of 6PPD.
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Columbia Environmental Research Center
6PPD Research at Columbia Environmental Research Center

6PPD Research at Columbia Environmental Research Center

CERC scientists are evaluating the exposure and effects of 6PPD.
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Survival and bioaccumulation data for sensitive salmonids exposed to 6PPDQ with additional survival data for two bass species Survival and bioaccumulation data for sensitive salmonids exposed to 6PPDQ with additional survival data for two bass species

This data set includes survival data for five fish species [Coho Salmon (Oncorhynchus kisutch); Brook Trout (Salvelinus fontinalis); Rainbow Trout (Oncorhynchus mykiss); Smallmouth Bass (Micropterus dolomieu); Largemouth Bass (Micropterus nigricans)] exposed to various concentrations of 6PPD-quinone (6PPDQ) for up to 96 hours and then held in clean water for one week post exposure...
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Columbia Environmental Research Center

Images of two standard crude oils collected using a fluorescent camera device to train and optimize a machine learning model for real-time oil spill concentration assessment collected from November 7, 2023, to July 8, 2024 Images of two standard crude oils collected using a fluorescent camera device to train and optimize a machine learning model for real-time oil spill concentration assessment collected from November 7, 2023, to July 8, 2024

The data are a set of fluorescent images that were generated to support the development of a machine learning model. The approach combines fluorescence imaging, deep learning, a mobile application, and a data management system for automated and real-time oil spill assessment. The dataset is comprised of 1,530 fluorescence images from two distinct oil types, a napthalenic crude oil (NACO)...
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Columbia Environmental Research Center

Survival of juvenile mussels (Lampsilis siliquoidea) exposed to 6PPD and transformation products Survival of juvenile mussels (Lampsilis siliquoidea) exposed to 6PPD and transformation products

This data set includes mortality data from acute toxicity tests with juveniles of the mussel, Lampsilis siliquoidea exposed to 6PPD and 6PPDQ. Concurrently collected analytical chemistry and general water quality measurements are included.
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Columbia Environmental Research Center

Water Quality Data from the Clinton River watershed near Detroit, MI Water Quality Data from the Clinton River watershed near Detroit, MI

This data release contains water quality data collected in the field during an in-situ mussel exposure. We collected dissolved oxygen, temperature, conductivity, and water depth data using a sensor silo to assess habitat conditions for a potential mussel restoration. Additionally, we collected particle count data to quantify food availability for mussels and water quality data...
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Columbia Environmental Research Center

Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021 Concentration of PFOS (perfluorooctanesulfonic acid) in water and freshwater diatoms (Mayamaea atomus) in a bioaccumulation study conducted at U.S. Geological Survey, Columbia Environmental Research Center in July 2021

Two laboratory experiments were conducted to understand PFOS (perfluorooctanesulfonic acid) bioaccumulation in freshwater benthic diatoms (Mayamaea atomus). The first experiment tested bioconcentration at multiple PFOS concentrations (0, 0.01, 0.1, 1, 10, 100 micrograms per liter) after 7 days of exposure. The second explored uptake and depuration of 0.1 micrograms per liter PFOS at...
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Columbia Environmental Research Center

Stormwater concentrations of tire wear particle leachate compounds and survival of early instar mayflies (Neocloeon triangulifer) exposed to 6PPD and transformation products Stormwater concentrations of tire wear particle leachate compounds and survival of early instar mayflies (Neocloeon triangulifer) exposed to 6PPD and transformation products

This data set includes concentrations of selected transformation products (TPs) of the tire antioxidant, 6PPD, including 6PPD-quinone (6PPDQ) and 4-hydroxydiphenylamine (4-HDPA) in water samples collected during a rain event from two urban rivers in the Greater Toronto Area, Ontario, Canada. In addition, mortality data from acute toxicity tests with aquatic larvae of the mayfly...
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Columbia Environmental Research Center
Filter Total Items: 48

Are behavioural ecotoxicity endpoints relevant at the population level? Evidence-based insights for environmental protection Are behavioural ecotoxicity endpoints relevant at the population level? Evidence-based insights for environmental protection

A substantial body of evidence exists demonstrating that exposure to environmental contaminants can alter animal behavior. Moreover, methodological and technological advancements, as well as increasing standardization, mean that behavioral ecotoxicity studies are more rigorous and reliable than ever before. Despite this, behavioral data are still seldom used in the risk assessment and...
Authors
Michael G. Bertram, Marlene Ågerstrand, Jack A. Brand, Bryan W. Brooks, ZhiChao Dang, Alex T. Ford, Henner Hollert, Matthew K. LeFauve, Jack L. Manera, Jake M. Martin, Marcus Michelangeli, Maria Moiron, Eleanor R. Moore, Holly J. Puglis, Andrew Sih, Jeffery A. Steevens, Eli S.J. Thoré, Bob B.M. Wong, Lauren Zink, Tomas Bodin
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Ecosystems Mission Area, Columbia Environmental Research Center

Insights and strategic opportunities from the USGS 2024 Per- and Polyfluoroalkyl Substances (PFAS) Interagency Workshop Insights and strategic opportunities from the USGS 2024 Per- and Polyfluoroalkyl Substances (PFAS) Interagency Workshop

Introduction In 2021, the U.S. Geological Survey (USGS) published Circular 1490 titled, “Integrated Science for the Study of Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) in the Environment: A Strategic Science Vision for the U.S. Geological Survey” (Tokranov and others, 2021). Circular 1490 was created to be a resource for USGS scientists prioritizing and planning research...
Authors
Deborah D. Iwanowicz, Kimberly R. Beisner, Paul M. Bradley, Patricia R. Bright, Juliane B. Brown, Christopher J. Churchill, Stephanie E. Gordon, Natalie Karouna-Renier, Dana W. Kolpin, Rebecca B. Lambert, Erin L. Pulster, Rip S. Shively, Kelly Smalling, Jeffery A. Steevens, Andrea K. Tokranov
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Ecosystems Mission Area

Evaluation of the effects of sediments contaminated by industrial discharges to a unionid mussel (Fatmucket, Lampsilis siliquoidea) and a common test benthic organism (Amphipod, Hyalella azteca) Evaluation of the effects of sediments contaminated by industrial discharges to a unionid mussel (Fatmucket, Lampsilis siliquoidea) and a common test benthic organism (Amphipod, Hyalella azteca)

Freshwater mussels are among the most sensitive species to a variety of chemicals in water exposures. However, few studies have been conducted to evaluate the effect of toxicants in sediments on mussels. Industrial discharges containing polyaromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and metals entered the Kanawha River surrounding Blaine Island, South Charleston...
Authors
Chris D. Ivey, Jeffery A. Steevens, Ning Wang, Kathleen Patnode, James L. Kunz, John M. Besser
By
Ecosystems Mission Area, Columbia Environmental Research Center

Real-time oil spill concentration assessment through fluorescence imaging and deep learning Real-time oil spill concentration assessment through fluorescence imaging and deep learning

Oil spills may pose severe ecological and socioeconomic threats, necessitating rapid and accurate environmental assessment. Traditional assessment methods used to determine the extent of a spill including gas chromatography-mass spectrometry, satellite imaging, and visual surveys, are often time-consuming, expensive, and limited by weather conditions or sampling constraints. Furthermore...
Authors
Biplab Poudel, Jiacheng Xie, Congyu Guo, Olivia Watt, Erin L. Pulster, Rishi J. Patel, Jeffery A. Steevens, Dong Xu
By
Ecosystems Mission Area, Columbia Environmental Research Center

Concentration dependency of PFOS bioaccumulation by freshwater benthic algae Concentration dependency of PFOS bioaccumulation by freshwater benthic algae

Although perfluorooctanesulfonic acid (PFOS) has been voluntarily phased out, it remains the most abundant and frequently detected PFAS compound in biota worldwide. A deeper understanding of how PFOS enters the aquatic food web at the energetic base is needed to better characterize and predict the general patterns of PFAS trophic transfer. Research on bioaccumulation by primary producers...
Authors
Alison M. Zachritz, Jeffery A. Steevens, Daniele A. Miranda, Brittany G. Perrotta, Rebecca A. Dorman, Heather D. Whitehead, Erin L. Pulster, David Walters, David J. Soucek, Graham F. Peaslee, Gary A. Lamberti
By
Ecosystems Mission Area, Columbia Environmental Research Center

Evaluating episodic sediment deposition zones in freshwater mussel habitats across Missouri, USA Evaluating episodic sediment deposition zones in freshwater mussel habitats across Missouri, USA

Point-source sedimentation, such as spills from construction-related activities, can introduce substantial sediments into streams in the short term, potentially leading to mussel burial. To estimate downstream areas where freshwater mussels might face threats from sediment burial within the mussel habitats of Missouri streams and rivers, we examined 49 reaches where both field...
Authors
Qingqing Sun, Bin Wang, Brandon James Sansom, Kathleen Trauth, Henry Brown, Wenyu Zhu, James L. Kunz, M. Christopher Barnhart, Stephen E. McMurray, Andrew D Roberts, Christopher Shulse, Caleb Knerr, Jeffery A. Steevens, Baolin Deng
By
Ecosystems Mission Area, Columbia Environmental Research Center

Non-USGS Publications**

Johnson, D.R., Boyd, R.E., Bednar, A.J., Weiss, C.A., Hull, M.S., Coleman, J.G., Kennedy, A.J., Banks, C.J., and Steevens, J.A., 2018, Effects of soot by-product from the synthesis of engineered metallofullerene nanomaterials on terrestrial invertebrates: Environmental Toxicology and Chemistry, v. 37, no. 6, p. 1594-1605.
Brooks, B.W., Lazorchak, J.M., Howard, M.D.A., Johnson, M.-V.V., Morton, S.L., Perkins, D.A.K., Reavie, E.D., Scott, G.I., Smith, S.A., and Steevens, J.A., 2016, Are harmful algal blooms becoming the greatest inland water quality threat to public health and aquatic ecosystems?: Environmental Toxicology and Chemistry, v. 35, no. 1, p. 6-13
Stanley, J.K., Laird, J.G., Kennedy, A.J., and Steevens, J.A., 2016, Sublethal effects of multiwalled carbon nanotube exposure in the invertebrate Daphnia magna: Environmental Toxicology and Chemistry, v. 35, no. 1, p. 200-204
Kennedy, A.J., Hull, M.S., Diamond, S., Chappell, M., Bednar, A.J., Laird, J.G., Melby, N.L., and Steevens, J.A., 2015, Gaining a critical mass: A dose metric conversion case study using silver nanoparticles: Environmental Science & Technology, v. 49, no. 20, p. 12490-12499
Brame, J.A., Poda, A.R., Kennedy, A.J., and Steevens, J.A., 2015, EHS testing of products containing nanomaterials: What is nano release?: Environmental Science & Technology, v. 49, no. 19, p. 11245-11246
Cuddy, M.F., Poda, A.R., Moser, R.D., Weiss, C.A., Cairns, C., and Steevens, J.A., 2016, A weight-of-evidence approach to identify nanomaterials in consumer products: a case study of nanoparticles in commercial sunscreens: Journal of Exposure Science and Environmental Epidemiology, v. 26, no. 1, p. 26-34
Garcia-Reyero, N., Thornton, C., Hawkins, A.D., Escalon, L., Kennedy, A.J., Steevens, J.A., and Willett, K.L., 2015, Assessing the exposure to nanosilver and silver nitrate on fathead minnow gill gene expression and mucus production: Environmental Nanotechnology, Monitoring & Management, v. 4, no. Supplement C, p. 58-66
Fadel, T.R., Steevens, J.A., Thomas, T.A., and Linkov, I., 2015, The challenges of nanotechnology risk management: Nano Today, v. 10, no. 1, p. 6-10
Collier, Z.A., Kennedy, A.J., Poda, A.R., Cuddy, M.F., Moser, R.D., MacCuspie, R.I., Harmon, A., Plourde, K., Haines, C.D., and Steevens, J.A., 2015, Tiered guidance for risk-informed environmental health and safety testing of nanotechnologies: Journal of Nanoparticle Research, v. 17, no. 3, p. 155
Steevens, J., Chappell, M., Janzen, D., Edwards, D., and Shih, W., 2014, Outwitting the uncertainty of nanotechnology risks through environmental life cycle assessment: Nanotechnology, v. 3, p. 113-114
Hawkins, A.D., Thornton, C., Kennedy, A.J., Bu, K., Cizdziel, J., Jones, B.W., Steevens, J.A., and Willett, K.L., 2015, Gill histopathologies following exposure to nanosilver or silver nitrate: Journal of Toxicology and Environmental Health, Part A, v. 78, no. 5, p. 301-315
Hawkins, A.D., Thornton, C., Steevens, J.A., and Willett, K.L., 2014, Alteration in Pimephales promelas mucus production after exposure to nanosilver or silver nitrate: Environmental Toxicology and Chemistry, v. 33, no. 12, p. 2869-2872
Hawkins, A.D., Bednar, A.J., Cizdziel, J.V., Bu, K., Steevens, J.A., and Willett, K.L., 2014, Identification of silver nanoparticles in Pimephales promelas gastrointestinal tract and gill tissues using flow field flow fractionation ICP-MS: RSC Advances, v. 4, no. 78, p. 41277-41280
Garcia-Reyero, N., Kennedy, A.J., Escalon, B.L., Habib, T., Laird, J.G., Rawat, A., Wiseman, S., Hecker, M., Denslow, N., Steevens, J.A., and Perkins, E.J., 2014, Differential effects and potential adverse outcomes of ionic silver and silver nanoparticles in vivo and in vitro: Environmental Science & Technology, v. 48, no. 8, p. 4546-4555
Palmqvist, A., Baker, L., Forbes, V.E., Gergs, A., von der Kammer, F., Luoma, S., Lützhøft, H.C.H., Salinas, E., Sorensen, M., and Steevens, J., 2015, Nanomaterial environmental risk assessment: Integrated Environmental Assessment and Management, v. 11, no. 2, p. 333-335
Harmon, A.R., Kennedy, A.J., Poda, A.R., Bednar, A.J., Chappell, M.A., and Steevens, J.A., 2014, Determination of nanosilver dissolution kinetics and toxicity in an environmentally relevant aqueous medium: Environmental Toxicology and Chemistry, v. 33, no. 8, p. 1783-1791
Chappell, M.A., Seiter, J.M., Bednar, A.J., Price, C.L., Averett, D., Lafferty, B., Tappero, R., Stanley, J.S., Kennedy, A.J., Steevens, J.A., Zhou, P., Morikawa, E., Merchan, G., and Roy, A., 2014, Stability of solid-phase selenium species in fly ash after prolonged submersion in a natural river system: Chemosphere, v. 95, no. Supplement C, p. 174-181
Kennedy, A.J., Melby, N.L., Moser, R.D., Bednar, A.J., Son, S.F., Lounds, C.D., Laird, J.G., Nellums, R.R., Johnson, D.R., and Steevens, J.A., 2013, Fate and toxicity of CuO nanospheres and nanorods used in Al/CuO nanothermites before and after combustion: Environmental Science & Technology, v. 47, no. 19, p. 11258-11267
Coleman, J.G., Kennedy, A.J., Bednar, A.J., Ranville, J.F., Laird, J.G., Harmon, A.R., Hayes, C.A., Gray, E.P., Higgins, C.P., Lotufo, G., and Steevens, J.A., 2013, Comparing the effects of nanosilver size and coating variations on bioavailability, internalization, and elimination, using Lumbriculus variegatus: Environmental Toxicology and Chemistry, v. 32, no. 9, p. 2069-2077
Bednar, A.J., Averett, D.E., Seiter, J.M., Lafferty, B., Jones, W.T., Hayes, C.A., Chappell, M.A., Clarke, J.U., and Steevens, J.A., 2013, Characterization of metals released from coal fly ash during dredging at the Kingston ash recovery project: Chemosphere, v. 92, no. 11, p. 1563-1570
Tang, K., Liu, X., Harper, S.L., Steevens, J.A., and Xu, R., 2013, NEIMiner: nanomaterial environmental impact data miner: International Journal of Nanomedicine, v. 8, no. Suppl 1, p. 15-29.
Liu, X., Tang, K., Harper, S., Harper, B., Steevens, J.A., and Xu, R., 2013, Predictive modeling of nanomaterial exposure effects in biological systems: International Journal of Nanomedicine, v. 8, no. Suppl 1, p. 31-43
Poda, A.R., Moser, R.D., Cuddy, M.F., Doorenbos, Z., Lafferty, B.J., Weiss, C.A., Harmon, A., Chappell, M.A., and Steevens, J. A., 2013, Nano-aluminum thermite formulations: Characterizing the fate properties of a nanotechnology during use: Journal of Nanomaterials & Molecular Nanotechnology, v. 2, no. 1, p. 1-9
Bednar, A.J., Poda, A.R., Mitrano, D.M., Kennedy, A.J., Gray, E.P., Ranville, J.F., Hayes, C.A., Crocker, F.H., and Steevens, J.A., 2013, Comparison of on-line detectors for field flow fractionation analysis of nanomaterials: Talanta, v. 104, no. Supplement C, p. 140-148
Stanley, J.K., Kennedy, A.J., Bednar, A.J., Chappell, M.A., Seiter, J.M., Averett, D.E., and Steevens, J.A., 2013, Impact assessment of dredging to remove coal fly ash at the Tennessee Valley Authority Kingston Fossil plant using fathead minnow elutriate exposures: Environmental Toxicology and Chemistry, v. 32, no. 4, p. 822-830
Handy, R.D., Cornelis, G., Fernandes, T., Tsyusko, O., Decho, A., Sabo-Attwood, T., Metcalfe, C., Steevens, J.A., Klaine, S.J., Koelmans, A.A., and Horne, N., 2012, Ecotoxicity test methods for engineered nanomaterials: Practical experiences and recommendations from the bench: Environmental Toxicology and Chemistry, v. 31, no. 1, p. 15-31
Xu, R., Tang, K., Liu, X., Harper, S., and Steevens, J.A., 2012, NEIMiner: A model driven data mining system for studying environmental impact of nanomaterials, Proceedings of the 2012 IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW), IEEE Computer Society, p. 895-902
Harper, B., Tang, K., Liu, X., Harper, S., Xu, R., and Steevens, J.A., 2012, Predictive modeling of nanomaterial biological effects, Proceedings of the 2012 IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW), IEEE Computer Society, p. 859-863
Chappell, M.A., Miller, L.F., George, A.J., Pettway, B.A., Price, C.L., Porter, B.E., Bednar, A.J., Seiter, J.M., Kennedy, A.J., and Steevens, J.A., 2011, Simultaneous dispersion–dissolution behavior of concentrated silver nanoparticle suspensions in the presence of model organic solutes: Chemosphere, v. 84, no. 8, p. 1108-1116
Bennett, E.R., Steevens, J.A., Lotufo, G.R., Paterson, G., and Drouillard, K.G., 2011, Novel control and steady-state correction method for standard 28-day bioaccumulation tests using Nereis virens: Environmental Toxicology and Chemistry, v. 30, no. 6, p. 1366-1375
Poda, A.R., Bednar, A.J., Kennedy, A.J., Harmon, A., Hull, M., Mitrano, D.M., Ranville, J.F., and Steevens, J., 2011, Characterization of silver nanoparticles using flow-field flow fractionation interfaced to inductively coupled plasma mass spectrometry: Journal of Chromatography A, v. 1218, no. 27, p. 4219-4225
Kennedy, A.J., Hull, M.S., Bednar, A.J., Goss, J.D., Gunter, J.C., Bouldin, J.L., Vikesland, P.J., and Steevens, J.A., 2010, Fractionating nanosilver: Importance for determining toxicity to aquatic test organisms: Environmental Science & Technology, v. 44, no. 24, p. 9571-9577
Bednar, A.J., Chappell, M.A., Seiter, J.M., Stanley, J.K., Averett, D.E., Jones, W.T., Pettway, B.A., Kennedy, A.J., Hendrix, S.H., and Steevens, J.A., 2010, Geochemical investigations of metals release from submerged coal fly ash using extended elutriate tests: Chemosphere, v. 81, no. 11, p. 1393-1400
McElroy, A.E., Barron, M.G., Beckvar, N., Driscoll, S.B.K., Meador, J.P., Parkerton, T.F., Preuss, T.G., and Steevens, J.A., 2011, A review of the tissue residue approach for organic and organometallic compounds in aquatic organisms: Integrated Environmental Assessment and Management, v. 7, no. 1, p. 50-74
Stanley, J.K., Kennedy, A.J., Farrar, J.D., Mount, D.R., and Steevens, J.A., 2010, Evaluation of reduced sediment volume procedures for acute toxicity tests using the estuarine amphipod Leptocheirus plumulosus: Environmental Toxicology and Chemistry, v. 29, no. 12, p. 2769-2776
Coleman, J.G., Johnson, D.R., Stanley, J.K., Bednar, A.J., Weiss, C.A., Boyd, R.E., and Steevens, J.A., 2010, Assessing the fate and effects of nano aluminum oxide in the terrestrial earthworm, Eisenia fetida: Environmental Toxicology and Chemistry, v. 29, no. 7, p. 1575-1580
Stanley, J.K., Coleman, J.G., Weiss, C.A., and Steevens, J.A., 2010, Sediment toxicity and bioaccumulation of nano and micron-sized aluminum oxide: Environmental Toxicology and Chemistry, v. 29, no. 2, p. 422-429
Johnson, D.R., Methner, M.M., Kennedy, A.J., and Steevens, J.A., 2010, Potential for occupational exposure to engineered carbon-based nanomaterials in environmental laboratory studies: Environmental Health Perspectives, v. 118, no. 1, p. 49-54
Kane Driscoll, S.B., McArdle, M.E., Menzie, C.A., Reiss, M., and Steevens, J.A., 2010, A framework for using dose as a metric to assess toxicity of fish to PAHs: Ecotoxicology and Environmental Safety, v. 73, no. 4, p. 486-490
Kennedy, A.J., Gunter, J.C., Chappell, M.A., Goss, J.D., Hull, M.S., Kirgan, R.A., and Steevens, J.A., 2009, Influence of nanotube preparation in aquatic bioassays: Environmental Toxicology and Chemistry, v. 28, no. 9, p. 1930-1938. .
Kennedy, A.J., Steevens, J.A., Lotufo, G.R., Farrar, J.D., Reiss, M.R., Kropp, R.K., Doi, J., and Bridges, T.S., 2009, A comparison of acute and chronic toxicity methods for marine sediments: Marine Environmental Research, v. 68, no. 3, p. 118-127
Hull, M.S., Kennedy, A.J., Steevens, J.A., Bednar, A.J., Weiss, J.C.A., and Vikesland, P.J., 2009, Release of metal impurities from carbon nanomaterials influences aquatic toxicity: Environmental Science & Technology, v. 43, no. 11, p. 4169-4174
Chappell, M.A., George, A.J., Dontsova, K.M., Porter, B.E., Price, C.L., Zhou, P., Morikawa, E., Kennedy, A.J., and Steevens, J.A., 2009, Surfactive stabilization of multi-walled carbon nanotube dispersions with dissolved humic substances: Environmental Pollution, v. 157, no. 4, p. 1081-1087
Tervonen, T., Linkov, I., Figueira, J.R., Steevens, J., Chappell, M., and Merad, M., 2009, Risk-based classification system of nanomaterials: Journal of Nanoparticle Research, v. 11, no. 4, p. 757-766
Linkov, I., Steevens, J., Adlakha-Hutcheon, G., Bennett, E., Chappell, M., Colvin, V., Davis, J.M., Davis, T., Elder, A., Foss Hansen, S., Hakkinen, P.B., Hussain, S.M., Karkan, D., Korenstein, R., Lynch, I., Metcalfe, C., Ramadan, A.B., and Satterstrom, F.K., 2009, Emerging methods and tools for environmental risk assessment, decision-making, and policy for nanomaterials: summary of NATO Advanced Research Workshop: Journal of Nanoparticle Research, v. 11, no. 3, p. 513-527
Kennedy, A.J., Hull, M.S., Steevens, J.A., Dontsova, K.M., Chappell, M.A., Gunter, J.C., and Weiss, C.A., 2008, Factors influencing the partitioning and toxicity of nanotubes in the aquatic environment: Environmental Toxicology and Chemistry, v. 27, no. 9, p. 1932-1941
Sims, J.G., and Steevens, J.A., 2008, The role of metabolism in the toxicity of 2,4,6-trinitrotoluene and its degradation products to the aquatic amphipod Hyalella azteca: Ecotoxicology and Environmental Safety, v. 70, no. 1, p. 38-46
Dortch, M.S., Zakikhani, M., Kim, S.-C., and Steevens, J.A., 2008, Modeling water and sediment contamination of Lake Pontchartrain following pump-out of Hurricane Katrina floodwater: Journal of Environmental Management, v. 87, no. 3, p. 429-442
Linkov, I., Satterstrom, F.K., Steevens, J., Ferguson, E., and Pleus, R.C., 2007, Multi-criteria decision analysis and environmental risk assessment for nanomaterials: Journal of Nanoparticle Research, v. 9, no. 4, p. 543-554
Inouye, L.S., Yoo, L.J., Talent, L.G., Clarke, J.U., Jones, R.P., Steevens, J.A., and Boyd, R.E., 2007, Assessment of lead uptake in reptilian prey species: Chemosphere, v. 68, no. 8, p. 1591-1596
Fristachi, A., Rice, G., Steevens, J., and Linkov, I., 2007, A preliminary exposure assessment of microcystins from consumption of drinking water in the United States: Lake and Reservoir Management, v. 23, no. 2, p. 203-210
Suedel, B.C., Steevens, J.A., Kennedy, A.J., Brasfield, S.M., and Ray, G.L., 2007, Environmental consequences of water pumped from greater New Orleans following Hurricane Katrina:  Chemical, toxicological, and infaunal analysis: Environmental Science & Technology, v. 41, no. 7, p. 2594-2601
Perkins, E.J., Gust, K.A., and Steevens, J., 2007, Toxicogenomic assessment of the population level impacts of contaminants: Integrated Environmental Assessment and Management, v. 3, no. 4, p. 562-564
Yoo, L.J., Lotufo, G.R., Gibson, A.B., Steevens, J.A., and Sims, J.G., 2006, Toxicity and bioaccumulation of 2, 4, 6-trinitrotoluene in fathead minnow (Pimephales promelas): Environmental Toxicology and Chemistry, v. 25, no. 12, p. 3253-3260
Kennedy, A.J., Millward, R.N., Steevens, J.A., Lynn, J.W., and Perry, K.D., 2006, Relative Sensitivity of zebra mussel (Dreissena polymorpha) life-stages to two copper sources: Journal of Great Lakes Research, v. 32, no. 3, p. 596-606
Steevens, J.A., Reiss, M.R., and Pawlisz, A.V., 2005, A methodology for deriving tissue residue benchmarks for aquatic biota: A case study for fish exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin and equivalents: Integrated Environmental Assessment and Management, v. 1, no. 2, p. 142-151
Landrum, P.F., Steevens, J.A., McElroy, M., Gossiaux, D.C., Lewis, J.S., and Robinson, S.D., 2005, Time-dependent toxicity of dichlorodiphenyldichloroethylene to Hyalella azteca: Environmental Toxicology and Chemistry, v. 24, no. 1, p. 211-218
Conder, J.M., La Point, T.W., Steevens, J.A., and Lotufo, G.R., 2004, Recommendations for the assessment of TNT toxicity in sediment: Environmental Toxicology and Chemistry, v. 23, no. 1, p. 141-149
Conder, J.M., Lotufo, G.R., Bowen, A.T., Turner, P.K., La Point, T.W., and Steevens, J.A., 2004, Solid phase microextraction fibers for estimating the toxicity of nitroaromatic compounds: Aquatic Ecosystem Health & Management, v. 7, no. 3, p. 387-397
Conder, J.M., La Point, T.W., Lotufo, G.R., and Steevens, J.A., 2003, Nondestructive, minimal-disturbance, direct-burial solid-phase microextraction fiber technique for measuring TNT in sediment: Environmental Science & Technology, v. 37, no. 8, p. 1625-1632
Steevens, J.A., Duke, B.M., Lotufo, G.R., and Bridges, T.S., 2002, Toxicity of the explosives 2,4,6-trinitrotoluene, hexahydro-1,3,5-trinitro-1,3,5-triazine, and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine in sediments to Chironomus tentans and Hyalella azteca: Low-dose hormesis and high-dose mortality: Environmental Toxicology and Chemistry, v. 21, no. 7, p. 1475-1482
Steevens, J.A., Summers, J.K., and Benson, W.H., 2001, Assessing stressors in coastal ecosystems: An approach to the patient: Human and Ecological Risk Assessment: An International Journal, v. 7, no. 5, p. 1447-1455
Huggett, D.B., Steevens, J.A., Allgood, J.C., Lutken, C.B., Grace, C.A., and Benson, W.H., 2001, Mercury in sediment and fish from North Mississippi Lakes: Chemosphere, v. 42, no. 8, p. 923-929
Steevens, J.A., and Benson, W.H., 2001, Toxicokinetic interactions and survival of Hyalella azteca exposed to binary mixtures of chlorpyrifos, dieldrin, and methyl mercury: Aquatic Toxicology, v. 51, no. 4, p. 377-388
Steevens, J.A., and Benson, W.H., 2000, Interactions of chlorpyrifos and methyl mercury: A mechanistic approach to assess chemical mixtures: Marine Environmental Research, v. 50, no. 1, p. 113-117
Steevens, J.A., and Benson, W.H., 1999, Toxicological interactions of chlorpyrifos and methyl mercury in the amphipod, Hyalella azteca: Toxicological Sciences, v. 52, no. 2, p. 168-177
Steevens, J.A., Slattery, M., Schlenk, D., Aryl, A., and Benson, W.H., 1999, Effects of ultraviolet-B light and polyaromatic hydrocarbon exposure on sea urchin development and bacterial bioluminescence: Marine Environmental Research, v. 48, no. 4, p. 439-457
Steevens, J.A., Vansal, S.S., Kallies, K.W., Knight, S.S., Cooper, C.M., and Benson, W.H., 1998, Toxicological evaluation of constructed wetland habitat sediments utilizing Hyalella azteca 10-day sediment toxicity test and bacterial bioluminescence: Chemosphere, v. 36, no. 15, p. 3167-3180
Steevens, J.A., and Benson, W.H., 1998, Hyalella azteca 10-day sediment toxicity test: Comparison of growth measurement endpoints: Environmental Toxicology and Water Quality, v. 13, no. 3, p. 243-248
Schlenk, D., Wolford, L., Chelius, M., Steevens, J., and Chan, K.M., 1997, Effect of arsenite, arsenate, and the herbicide monosodium methyl arsonate (MSMA) on hepatic metallothionein expression and lipid peroxidation in channel catfish: Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, v. 118, no. 2, p. 177-183

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

CERC’s Research Supporting Conservation of Endangered Mussels Featured in the Columbia Missourian

CERC’s Research Supporting Conservation of Endangered Mussels Featured in the Columbia Missourian

CERC scientist James Kunz is featured in the Columbia Missourian on USGS research related to endangered mussels.

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*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

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