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GeoHEALTH-USGS Newsletter

GeoHEALTH-USGS Newsletter

The GeoHEALTH-USGS Newsletter provides information on new USGS science activities related to safeguarding the health of fish, wildlife, domesticated animals, livestock, and people from environmental exposures to contaminants and pathogens.

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Featured Science Activities

Featured Science Activities

Lean about our Featured Science Activities through our pages that highlight recience studies, publications, and results.

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Filter Total Items: 2,987
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Year Published: 2019

Critical review: Grand challenges in assessing the adverse effects of contaminants of emerging concern on aquatic food webs

Much progress has been made in the past few decades in understanding the sources, transport, fate, and biological effects of contaminants of emerging concern (CECs) in aquatic ecosystems. Despite these advancements, significant obstacles still prevent comprehensive assessments of the environmental risks associated with the presence of CECs. Many...

Nilsen, Elena; Smalling, Kelly L.; Ahrens, Lutz; Gros, Meritxell; Miglioranza, Karina S. B.; Pico, Yolanda; Schoenfuss, Heiko L.

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Year Published: 2019

Behavioral effects of copper on larval white sturgeon

Early–life stage white sturgeon are sensitive to copper (Cu), with adverse behavioral responses observed during previous studies. The objectives of the present study were to quantify the effects of Cu exposure on white sturgeon swimming and feeding behaviors and determine their time to response. Larval sturgeon (1–2, 28, or 35 d posthatch [dph])...

Puglis, Holly J.; Calfee, Robin D.; Little, Edward E.

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Year Published: 2019

Mercury contamination in resident and migrant songbirds and potential effects on body condition

Methlymercury is a significant risk to environmental health globally. We examined the ecological drivers of methylmercury bioaccumulation in songbirds and its effect on body condition while experimentally removing the potentially confounding and predominant effects of site and habitat. We measured blood and...

Ackerman, Joshua T.; Hartman, C. Alex; Herzog, Mark P.

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Year Published: 2019

Chlorinated byproducts of neonicotinoids and their metabolites: An unrecognized human exposure potential?

We recently reported the initial discovery of neonicotinoid pesticides in drinking water and their potential for transformation through chlorination and alkaline hydrolysis during water treatment. The objectives of this research were: (1) to determine if neonicotinoid metabolites are relevant to drinking water exposure and (2) to identify the...

Klarich Wong, Kathryn L.; Webb, Danielle T.; Nagorzanski, Matthew R.; Kolpin, Dana W.; Hladik, Michelle L.; Cwiertny, David M.; LeFevre, Gregory H.

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Year Published: 2019

Potential toxicity of complex mixtures in surface waters from a nationwide survey of United States streams: Identifying in vitro bioactivities and causative chemicals

While chemical analysis of contaminant mixtures remains an essential component of environmental monitoring, bioactivity-based assessments using in vitro systems increasingly play a role in the detection of biological effects. Historically, in vitro assessments focused on a few biological pathways, e.g., aryl hydrocarbon receptor (AhR) or estrogen...

Blackwell, Brett R.; Ankley, Gerald T.; Bradley, Paul M.; Houck, Keith A.; Makarov, Sergei S.; Medvedev, Alexander V.; Swintek, Joe; Villeneuve, Daniel L.

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Year Published: 2019

Absence of PCB hot spot effect in walleye Sander vitreus from lower Green Bay of Lake Michigan

Under certain conditions, polychlorinated biphenyl (PCB) concentration in individuals of one sex of an adult fish population may exceed that of the other sex by more than a factor of two. This phenomenon, known as the PCB hot spot effect, has been postulated to be contingent upon the following two conditions: (1) presence of a PCB hot spot in...

Madenjian, Charles P.; Dembkowski, Daniel J.; Isermann, Daniel A.; Batterman, Stuart A.; Chernyak, Sergei C.; Cogswell, Stewart F.; Holey, Mark E.

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Year Published: 2019

UZIG research: Measurement and characterization of unsaturated zone processes under wide-ranging climates and changing conditions

Unsaturated zone properties and processes are central to understanding the interacting effects of land-use change, contamination, and hydroclimate on our ability to grow food, sustain clean water supplies, and minimize loss of life and property. Advances in unsaturated zone science are being achieved through collaborations across traditional...

Trost, Jared J.; Mirus, Benjamin B.; Perkins, Kimberlie; Henson, Wesley R.; Nimmo, John R.; Munoz-Carpena, Rafael

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Year Published: 2019

Use of blood clotting assays to assess potential anticoagulant rodenticide exposure and effects in free-ranging birds of prey

Non-target wildlife, particularly birds of prey, are widely exposed to and acutely poisoned by anticoagulant rodenticides (ARs). An unresolved issue surrounding such exposure, however, is the potential for sublethal effects. In particular, the consequences of AR exposure and resulting coagulopathy on health and survival of...

Hindmarch, Sofi; Rattner, Barnett A.; Elliott, John E.

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Year Published: 2019

Efficient hydrogeological characterization of remote stream corridors using drones

This project demonstrates the successful use of small unoccupied aircraft system (sUASs) for hydrogeological characterization of a remote stream reach in a rugged mountain terrain. Thermal infrared, visual imagery, and derived digital surface models are used to inform conceptual models of groundwater/surface‐water exchange and efficiently...

Briggs, Martin A.; Dawson, Cian B.; Holmquist-Johnson, Christopher; Williams, Kenneth H.; Lane, John W.

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Year Published: 2019

Polychlorinated biphenyl tissue‐concentration thresholds for survival, growth, and reproduction in fish

Polychlorinated biphenyls (PCBs) have left a legacy of environmental contamination. Even though they were banned from production and active use in the 1970s, they persist in the environment and still have the potential to impact aquatic life. Our objective was to identify data from controlled laboratory studies of PCB‐related adverse effects in...

Berninger, Jason P.; Tillitt, Donald E.

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Year Published: 2019

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...

Bradley, Paul M.; Journey, Celeste A.; Berninger, Jason P.; Button, Daniel T.; Clark, Jimmy M.; Corsi, Steven R.; DeCicco, Laura A.; Hopkins, Kristina G.; Huffman, Bradley J.; Nakagaki, Naomi; Norman, Julia E.; Nowell, Lisa H.; Qi, Sharon L.; Van Metre, Peter C.; Waite, Ian R.

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Year Published: 2019

Extreme value-based methods for modeling elk yearly movements

Species range shifts and the spread of diseases are both likely to be driven by extreme movements, but are difficult to statistically model due to their rarity. We propose a statistical approach for characterizing movement kernels that incorporate landscape covariates as well as the potential for heavy-tailed distributions. We used a spliced...

Wijeyakulasuriya, Dhanushi A.; Hanks, Ephraim M.; Shaby, Benjamin A.; Cross, Paul C.