L
Luke R. Iwanowicz
Researcher at United States Geological Survey
Publications - 113
Citations - 2860
Luke R. Iwanowicz is an academic researcher from United States Geological Survey. The author has contributed to research in topics: Micropterus & Bass (fish). The author has an hindex of 26, co-authored 104 publications receiving 2275 citations. Previous affiliations of Luke R. Iwanowicz include University of Arkansas at Pine Bluff & University of Massachusetts Amherst.
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Journal ArticleDOI
Expanded Target-Chemical Analysis Reveals Extensive Mixed-Organic-Contaminant Exposure in U.S. Streams
Paul M. Bradley,Celeste A. Journey,Kristin M. Romanok,Larry B. Barber,Herbert T. Buxton,William T. Foreman,Edward T. Furlong,Susan T. Glassmeyer,Michelle L. Hladik,Luke R. Iwanowicz,Daniel K. Jones,Dana W. Kolpin,Kathryn M. Kuivila,Keith A. Loftin,Marc A. Mills,Michael T. Meyer,James L. Orlando,Timothy J. Reilly,Kelly L. Smalling,Daniel L. Villeneuve +19 more
TL;DR: Log10 concentrations of widely monitored HHCB, triclosan, and carbamazepine explained 71-82% of the variability in the total number of compounds detected, providing a statistical inference tool for unmonitored contaminants.
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Intersex (Testicular Oocytes) in Smallmouth Bass from the Potomac River and Selected Nearby Drainages
Vicki S. Blazer,Luke R. Iwanowicz,Deborah D. Iwanowicz,David R. Smith,John A. Young,J. D. Hedrick,Scott Foster,S. J. Reeser +7 more
TL;DR: The prevalence of testicular oocytes is discussed in terms of human population and agricultural intensity and the number of histologic sections needed to accurately detect the condition in mature smallmouth bass was statistically evaluated.
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Reproductive endocrine disruption in smallmouth bass (Micropterus dolomieu) in the Potomac River basin: spatial and temporal comparisons of biological effects
Vicki S. Blazer,Luke R. Iwanowicz,Holly D. Henderson,Patricia M. Mazik,Jill A. Jenkins,David A. Alvarez,John A. Young +6 more
TL;DR: Bass collected in the South Branch Potomac had less sperm per testes mass with a lower percentage of those sperm being motile when compared to those from the Gauley River (low prevalence of TO), and an inverse relationship was noted between TO severity and sperm motility.
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Environmental signatures and effects of an oil and gas wastewater spill in the Williston Basin, North Dakota.
Isabelle M. Cozzarelli,Katherine Skalak,Douglas B. Kent,Mark A. Engle,Adam Benthem,Adam C. Mumford,Karl B. Haase,Aïda M. Farag,David D. Harper,Susan C. Nagel,Luke R. Iwanowicz,William H. Orem,Denise M. Akob,Jeanne B. Jaeschke,Joel M. Galloway,Matthias Kohler,Deborah L. Stoliker,Glenn D. Jolly +17 more
TL;DR: Results from June 2015 demonstrate the persistence of wastewater effects in Blacktail Creek several months after remediation efforts started and demonstrate that environmental signatures from wastewater spills are persistent and create the potential for long-term environmental health effects.
Journal ArticleDOI
Endocrine disrupting activities of surface water associated with a West Virginia oil and gas industry wastewater disposal site
Christopher D. Kassotis,Luke R. Iwanowicz,Denise M. Akob,Isabelle M. Cozzarelli,Adam C. Mumford,William H. Orem,Susan C. Nagel +6 more
TL;DR: Elevated conductivity as well as high sodium, chloride, strontium, and barium concentrations indicate impacts due to handling of unconventional oil and gas wastewater.