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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

Fungicides: An overlooked pesticide class?

Fungicides are indispensable to global food security and their use is forecasted to intensify. Fungicides can reach aquatic ecosystems and occur in surface water bodies in agricultural catchments throughout the whole growing season due to their frequent, prophylactic application. However, in comparison to herbicides and insecticides, the exposure...

Zubrod, Jochen; Bundschuh, Micro; Arts, Gertie; Bruhl, Carsten; Imfeld, Gwenaël; Knäbel, Anja; Payraudeau, Sylvain; Rasmussen, Jes J; Rohr, Jason; Scharmüller, Andreas; Smalling, Kelly; Stehle, Sebastian; Schulz, Ralf; Schäfer, Ralf B.

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Year Published: 2019

Toxicokinetics of imidacloprid-coated wheat seeds in Japanese quail (Coturnix japonica) and an evaluation of hazard

Birds are potentially exposed to neonicotinoid insecticides by ingestion of coated seeds during crop planting. Adult male Japanese quail were orally dosed with wheat seeds coated with an imidacloprid (IMI) formulation at either 0.9 mg/kg body weight (BW) or 2.7 mg/kg BW (~3 and 9% of IMI LD50 for Japanese quail, respectively) for 1 or 10 days....

Bean, Thomas G.; Gross, Michael S.; Karouna-Renier, Natalie K.; Henry, Paula F. P.; Schultz, Sandra L.; Hladik, Michelle; Kuivila, Kathryn; Rattner, Barnett A.

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Year Published: 2019

Associations between environmental pollutants and larval amphibians in wetlands contaminated by energy-related brines are potentially mediated by feeding traits

Energy production in the Williston Basin, located in the Prairie Pothole Region of central North America, has increased rapidly over the last several decades. Advances in recycling and disposal practices of saline wastewaters (brines) co-produced during energy production have reduced ecological risks, but spills still...

Smalling, Kelly L.; Anderson, Chauncey W.; Honeycutt, R. Ken; Cozzarelli, Isabelle M.; Preston, Todd M.; Hossack, Blake R.

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Year Published: 2019

Slough evolution and legacy mercury remobilization induced by wetland restoration in South San Francisco Bay

Coastal wetlands have a long history of degradation and destruction due to human development. Now recognized as one of the most productive ecosystems in the world, substantial efforts are being made to restore this critical habitat. While wetland restoration efforts are generally viewed as beneficial in terms of providing wildlife habitat and...

Foxgrover, Amy C.; Marvin-DiPasquale, Mark C.; Jaffe, Bruce E.; Fregoso, Theresa A.

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Year Published: 2019

Nutrients mediate the effects of temperature on methylmercury concentrations in freshwater zooplankton

Methylmercury (MeHg) bioaccumulation in freshwater aquatic systems is impacted by anthropogenic stressors, including climate change and nutrient enrichment. The goal of this study was to determine how warmer water temperatures and excess nutrients would alter zooplankton communities and phytoplankton concentrations, and whether those changes would...

Jordan, Meredith P; Stewart, Robin; Eagles-Smith, Collin A.; Stracker, Angela L

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Year Published: 2019

Description of disparate responses of two indoor feral bee colonies

As is sometimes the case, field research does not always go according to plan. This is especially true when the research involves free-ranging animals. We recently conducted a preliminary field study that involved placing a beehive in a tent and individually releasing marked honey bees (Apis mellifera) outdoors to study their ability to locate...

Vyas, Nimish B.; Plunkett, Amanda D.

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Year Published: 2019

The dual‐domain porosity apparatus: Characterizing dual porosity at the sediment/water interface

The characterization of pore-space connectivity in porous media at the sediment/water interface is critical to understanding contaminant transport and reactive biogeochemical processes in zones of groundwater and surface-water exchange. Previous in situ studies of dual-domain (i.e., mobile/less-mobile porosity) studies have been limited to...

Scruggs, Courtney R.; Briggs, Martin A.; Day-Lewis, Frederick D.; Werkema, Dale D.; Lane, Jr., John W.

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Year Published: 2019

Rapid pre-concentration of mercury in solids and water for isotopic analysis

The precise quantification of mercury (Hg) stable isotope compositions in low concentration or dilute samples poses analytical challenges due to Hg mass limitations. Common Hg pre-concentration procedures require extended processing times, making rapid Hg stable isotope measurements challenging. Here we present a modified pre-...

Janssen, Sarah E.; Lepak, Ryan F.; Tate, Michael T.; Ogorek, Jacob M.; DeWild, John F.; Babiarz, Christopher L.; Hurley, James P.; Krabbenhoft, David P.

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Year Published: 2019

Element concentrations in tree swallows (Tachycineta bicolor) from the U.S. and Binational Great Lakes’ areas of concern

Selected elements were targeted in state Remedial Action Plans as one group of chemicals affecting the Beneficial Use Impairments of Great Lakes Areas of Concern (AOC). Livers of nestling tree swallows, Tachycineta bicolor, were harvested from 76 sites in the Great Lakes which included multiple sites at 27 AOCs and 12 reference sites from 2010...

Custer, Thomas W.; Custer, Christine M.; Dummer, Paul; Goldberg, Diana R.; Franson, J. Christian

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Year Published: 2019

Assessment of bird exposure to lead at Tyndall and Beale Air Force Bases, 2016–17

Soil contamination by lead (Pb) from past small munitions training on Beale Air Force Base, California, and Tyndall Air Force Base, Florida, may result in adverse effects for passerine birds that utilize the locations. A study was conducted during 2016-17 by the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service and U.S...

Bargar, Timothy A.
Bargar, T.A., 2019, Assessment of bird exposure to lead at Tyndall and Beale Air Force Bases, 2016–17: U.S. Geological Survey Scientific Investigations Report 2018–5164, 30 p., https://doi.org/10.3133/sir20185164.

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Year Published: 2019

Mercury isotopes reveal an ontogenetic shift in habitat use by walleye in lower Green Bay of Lake Michigan

In general, fish residing in rivers differ from fish residing in lakes in their mercury (Hg) isotope ratios. Specifically, fish residing in lakes typically show enriched values for the isotope ratios of δ202Hg (mass-dependent fractionation of isotope 202Hg) and Δ199Hg (mass-independent fractionation of isotope 199Hg) compared with fish...

Madenjian, Charles P.; Janssen, Sarah E.; Lepak, Ryan F.; Ogorek, Jacob M.; Rosera, Tylor J.; DeWild, John F.; Krabbenhoft, David P.; Cogswell, Stewart F.; Holey, Mark E.

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Year Published: 2019

Identifying natural and anthropogenic variability of uranium at the well scale, Homestake Superfund site, near Milan, New Mexico, USA

The San Mateo Creek Basin in New Mexico, USA is located within the Grants Mineral Belt-an area with numerous uranium (U) ore deposits, mines, and milling operations. Six monitoring wells set in an alluvial aquifer near the Homestake Mining Co. Superfund site in the lower San Mateo Creek Basin were logged with a suite of borehole geophysical tools...

Harte, Philip T.; Blake, Johanna M.; Thomas, Jonathan V.; Becher, Kent D.