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Publications

Dive into our publications and explore the science from the Environmental Health Program (Toxic Substances Hydrology and Contaminant Biology).

Filter Total Items: 686

Modeling the bioavailability of nickel and zinc to Ceriodaphnia dubia and Neocloeon triangulifer in toxicity tests with Natural Waters Modeling the bioavailability of nickel and zinc to Ceriodaphnia dubia and Neocloeon triangulifer in toxicity tests with Natural Waters

We studied biotic ligand model (BLM) predictions of toxicity of nickel (Ni) and zinc (Zn) in natural waters from Illinois and Minnesota USA which had combinations of pH, hardness, and dissolved organic carbon (DOC) more extreme than 99.7% of waters in a nationwide database. We conducted 7-d chronic tests with Ceriodaphnia dubia, and 96-hr acute test and 14-d chronic tests with Neocloeon
Authors
John Besser, Chris Ivey, Jeffery Steevens, Danielle Cleveland, David Soucek, Amy Dickinson, Eric Van Genderen, Adam Ryan, Chris Schlekat, Emily R. Garman, Elizabeth Middleton, Robert Santore

Evaluation of dissolved carbon dioxide to stimulate emergence of red swamp crayfish Procambarus clarkii (Decapoda: Cambaridae) from infested ponds Evaluation of dissolved carbon dioxide to stimulate emergence of red swamp crayfish Procambarus clarkii (Decapoda: Cambaridae) from infested ponds

Invasive crayfish have adverse effects on habitats and native species. Control of invasive crayfish populations is a major challenge facing natural resource managers. This study evaluated the effectiveness and optimal conditions for the control agent carbon dioxide (CO2) which can be diffused into water to facilitate capture of red swamp crayfish (Procambarus clarkii; RSC). The efficacy...
Authors
Hisham Abdelrahman, Rebecca Gibson, Kaelyn Fogelman, Aaron Cupp, Ann Allert, James Stoeckel

Direct and delayed mortality of Ceriodaphnia dubia and rainbow trout following time-varying acute exposures to zinc Direct and delayed mortality of Ceriodaphnia dubia and rainbow trout following time-varying acute exposures to zinc

The potential for delayed mortality following short-term episodic pollution events was evaluated by exposing cladocerans (Ceriodaphnia dubia) and rainbow trout (Oncorhynchus mykiss) to zinc (Zn) in various 1- to 48-h and 1- to 96-h exposures, respectively, followed by transferring the exposed organisms to clean water for up to 47 h for C. dubia and up to 95 h for trout for additional...
Authors
Christopher Mebane, Chris Ivey, Ning Wang, Jeffery Steevens, Danielle Cleveland, Michael Elias, James Justice, Kathryn Gallagher, Robert Brent

Assessing cyanobacterial frequency and abundance at surface waters near drinking water intakes across the United States Assessing cyanobacterial frequency and abundance at surface waters near drinking water intakes across the United States

This study presents the first large-scale assessment of cyanobacterial frequency and abundance of surface water near drinking water intakes across the United States. Public water systems serve drinking water to nearly 90% of the United States population. Cyanobacteria and their toxins may degrade the quality of finished drinking water and can lead to negative health consequences...
Authors
Megan Coffer, Blake A. Schaeffer, Katherine Foreman, Alex Porteous, Keith Loftin, Richard Stumpf, Jeremy Werdell, Erin Urquhart, Ryan Albert, John Darling

Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity

Pesticides occur in urban streams globally, but the relation of occurrence to urbanization can be obscured by regional differences. In studies of five regions of the United States, we investigated the effect of region and urbanization on the occurrence and potential toxicity of dissolved pesticide mixtures. We analyzed 225 pesticide compounds in weekly discrete water samples collected...
Authors
Lisa Nowell, Patrick Moran, Laura Bexfield, Barbara Mahler, Peter Van Metre, Paul M. Bradley, Travis S. Schmidt, Daniel Button, Sharon Qi

Identification of Aphanomyces invadans, the cause of epizootic ulcerative syndrome, in smallmouth bass (Micropterus dolomieu) from the Cheat River, West Virginia, USA Identification of Aphanomyces invadans, the cause of epizootic ulcerative syndrome, in smallmouth bass (Micropterus dolomieu) from the Cheat River, West Virginia, USA

The oomycete Aphanomyces invadans (Saprolegniales, Oomycetes), the cause of epizootic ulcerative syndrome (EUS), is an OIE (World Organization for Animal Health) reportable pathogen, capable of infecting many fish species worldwide in both freshwater and estuarine environments (Iberahim et al. 2018). Since the discovery of EUS in Japan in 1971 (Egusa and Masuda 1971), it has spread...
Authors
Heather Walsh, Vicki S. Blazer, Patricia Mazik

Untargeted lipidomics for determining cellular and sub-cellular responses in Zebrafish (Danio rerio) liver cells following exposure to complex mixtures in U.S. streams Untargeted lipidomics for determining cellular and sub-cellular responses in Zebrafish (Danio rerio) liver cells following exposure to complex mixtures in U.S. streams

Surface waters often contain a variety of chemical contaminants potentially capable of producing adverse outcomes in both humans and wildlife due to impacts from industrial, urban, and agricultural activity. Here, we report the results of a zebrafish liver (ZFL) cell-based lipidomics approach to assess the potential ecotoxicological effects of complex contaminant mixtures using water...
Authors
Huajun Zhen, Quincy Teng, Jonathan Mosley, Timothy Collette, Yang Yue, Paul M. Bradley, Drew Ekman

Perfluoroalkyl substances in plasma of smallmouth bass from the Chesapeake Bay Watershed Perfluoroalkyl substances in plasma of smallmouth bass from the Chesapeake Bay Watershed

Smallmouth bass Micropterus dolomieu is an economically important sportfish and within the Chesapeake Bay watershed has experienced a high prevalence of external lesions, infectious disease, mortality events, reproductive endocrine disruption and population declines. To date, no clear or consistent associations with contaminants measured in fish tissue or surface water have been found...
Authors
Vicki S. Blazer, Stephanie Gordon, Heather Walsh, Cheyenne Smith

Satellite remote sensing to assess cyanobacterial bloom frequency across the United States at multiple spatial scales Satellite remote sensing to assess cyanobacterial bloom frequency across the United States at multiple spatial scales

Cyanobacterial blooms can have negative effects on human health and local ecosystems. Field monitoring of cyanobacterial blooms can be costly, but satellite remote sensing has shown utility for more efficient spatial and temporal monitoring across the United States. Here, satellite imagery was used to assess the annual frequency of surface cyanobacterial blooms, defined for each...
Authors
Megan Coffer, Blake Schaeffer, Wilson Salls, Erin Urquhart, Keith Loftin, Richard Stumpf, P. Werdell, John A. Darling

Arsenic in petroleum-contaminated groundwater near Bemidji, Minnesota is predicted to persist for centuries Arsenic in petroleum-contaminated groundwater near Bemidji, Minnesota is predicted to persist for centuries

We used a reactive transport model to investigate the cycling of geogenic arsenic (As) in a petroleum-contaminated aquifer. We simulated As mobilization and sequestration using surface complexation reactions with Fe(OH)3 during petroleum biodegradation coupled with Fe-reduction. Model results predict that dissolved As in the plume will exceed the U.S. and EU 10 µg/L drinking water...
Authors
Brady Ziegler, G.-H. Crystal Ng, Isabelle Cozzarelli, Aubrey Dunshee, Madeline Schreiber

Identifying chemicals and mixtures of potential biological concern detected in passive samplers from Great Lakes tributaries using high-throughput data and biological pathways Identifying chemicals and mixtures of potential biological concern detected in passive samplers from Great Lakes tributaries using high-throughput data and biological pathways

Waterborne contaminants were monitored in 69 tributaries of the Laurentian Great Lakes in 2010 and 2014 using semipermeable membrane devices (SPMDs) and polar organic chemical integrative samplers (POCIS). A risk-based screening approach was used to prioritize chemicals and chemical mixtures, identify sites at greatest risk for biological impacts, and identify potential hazards to...
Authors
David Alvarez, Steven R. Corsi, Laura DeCicco, Daniel Villeneuve, Austin Baldwin

Pilot-scale expanded assessment of inorganic and organic tapwater exposures and predicted effects in Puerto Rico, USA Pilot-scale expanded assessment of inorganic and organic tapwater exposures and predicted effects in Puerto Rico, USA

A pilot-scale expanded target assessment of mixtures of inorganic and organic contaminants in point-of-consumption drinking water (tapwater, TW) was conducted in Puerto Rico (PR) to continue to inform TW exposures and corresponding estimations of cumulative human-health risks across the US. In August 2018, a spatial synoptic pilot assessment of than 524 organic, 37 inorganic, and select
Authors
Paul M. Bradley, Ingrid Padilla, Kristin M. Romanok, Kelly Smalling, Michael Focazio, Sara Breitmeyer, Mary Cardon, Justin Conley, Nicola Evans, Carrie Givens, James L. Gray, L. Earl Gray, Phillip Hartig, Michelle Hladik, Christopher Higgins, Luke R. Iwanowicz, Rachael Lane, Keith Loftin, R. Blaine McCleskey, Carrie McDonough, Elizabeth Medlock-Kakaley, Shannon Meppelink, Christopher Weis, Vickie Wilson
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