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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: 2,896
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Year Published: 2019

Biota dose assessment of small rodents sampled near breccia pipe uranium mines in the Grand Canyon watershed

The biotic exposure and uptake of radionuclides and potential health effects due to breccia pipe uranium mining in the Grand Canyon watershed are largely unknown. This paper describes the use of the RESRAD-BIOTA dose model to assess exposure of small rodents (n = 11) sampled at three uranium mine sites in different stages of ore production (active...

Minter, Kelsey M.; Jannik, Timothy; Hinck, Jo Ellen; Cleveland, Danielle; Kubilius, Walter P.; Kuhne, Wendy W.

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Year Published: 2019

Nonlinearities in transmission dynamics and efficient management of vector-borne pathogens

Integrated Pest Management (IPM) is an approach to minimizing economic and environmental harm caused by pests, and Integrated Vector Management (IVM) uses similar methods to minimize pathogen transmission by vectors. The risk of acquiring a vector-borne infection is often quantified using the density of infected vectors. The relationship between...

Ginsberg, Howard S.; Couret, Jannelle

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Year Published: 2019

Managing the trifecta of disease, climate, and contaminants: Searching for robust choices under multiple sources of uncertainty

Wood frogs, like other amphibian species worldwide, are experiencing population declines due to multiple stressors. In the northeastern United States, wood frog declines are thought to result from a reduction in successful metamorphosis in part due to climate change, disease (specifically ranavirus) and contaminant exposure. The presence of...

Smalling, Kelly; Eagles-Smith, Collin; Katz, Rachel A.; Grant, Evan

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Year Published: 2019

San Francisco Bay triennial bird egg monitoring program for contaminants, California—2018

The Regional Monitoring Program for Water Quality in San Francisco Bay (RMP), administered by the San Francisco Estuary Institute, is a large-scale effort to monitor contaminant trends in water, sediment, fish, and birds throughout San Francisco Bay (San Francisco Estuary Institute, 2016). As part of the RMP and the U.S....

Ackerman, Joshua T.; Hartman, C. Alex; Herzog, Mark P.; Toney, Matthew
Ackerman, J.T., Hartman, C.A., Herzog, M.P., and Toney, M., 2019, San Francisco Bay triennial bird egg monitoring program for contaminants, California—2018: U.S. Geological Survey Data Series 1114, 14 p., https://doi.org/10.3133/ds1114.

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Year Published: 2019

Atrazine induced transgenerational reproductive effects in medaka (Oryzias latipes)

Atrazine is presently one of the most abundantly used herbicides in the United States, and a common contaminant of natural water bodies and drinking waters in high-use areas. Dysregulation of reproductive processes has been demonstrated in atrazine exposed fish, including alteration of key endocrine pathways on hypothalamic-pituitary-gonadal (HPG...

Cleary, Jacob A.; Tillitt, Donald E.; vom Saal, Fredrick S.; Nicks, Diane; Claunch, Rachel; Bhandari, Ramji K.

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Year Published: 2019

Geochemical factors controlling dissolved elemental mercury and methylmercury formation in Alaskan wetlands of varying trophic status

Transformations of aqueous inorganic divalent mercury (Hg(II)i) to volatile dissolved gaseous mercury (Hg(0)(aq)) and toxic methylmercury (MeHg) governs mercury bioavailability and fate in northern ecosystems. This study quantified concentrations of aqueous mercury species (Hg(II)i, Hg(0)(aq), MeHg) and relevant geochemical constituents in pore...

Poulin, Brett; Ryan, Joseph N.; Tate, Michael; Krabbenhoft, David; Hines, Mark E; Barkay, Tamar; Schaefer, Jeffra; Aiken, George R.

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Year Published: 2019

Spatial variation in aquatic invertebrate and riparian songbird mercury exposure across a river-reservoir system with a legacy of mercury contamination

Mercury (Hg) loading and methylation in aquatic systems causes a variety of deleterious effects for fish and wildlife populations. Relatively little research has focused on Hg movement into riparian food webs and how this is modulated by habitat characteristics. This study characterized differences in Hg exposure in aquatic invertebrates and...

Jackson, Allyson K.; Eagles-Smith, Collin A.; Emery, Colleen

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Year Published: 2019

In ovo exposure to brominated flame retardants Part II: Assessment of effects of TBBPA-BDBPE and BTBPE on hatching success, morphometric and physiological endpoints in American kestrels

Tetrabromobisphenol A bis(2,3-dibromopropyl ether) (TBBPA-BDBPE) and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTPBE) are both brominated flame retardants (BFRs) that have been detected in birds; however, their potential biological effects are largely unknown. We assessed the effects of embryonic exposure to TBBPA-BDBPE and BTBPE in a model avian...

Eng, Margaret; Karouna-Renier, Natalie K.; Henry, Paula F. P.; Letcher, Robert J.; Schultz, Sandra L.; Bean, Thomas G.; Peters, Lisa E.; Palace, Vince P.; Williams, Tony D.; Elliott, John E.; Fernie, Kim J.

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Year Published: 2019

In ovo exposure to brominated flame retardants Part I: Assessment of effects of TBBPA-BDBPE on survival, morphometric and physiological endpoints in zebra finches

Tetrabromobisphenol A bis(2,3-dibromopropyl) ether (TBBPA-BDBPE) is an additive flame retardant used in polyolefins and polymers. It has been detected in biota, including in avian eggs, yet little is known of its effects. We assessed the pattern of TBBPA-BDBPE concentrations in songbird eggs over the incubation period, and the effects of embryonic...

Eng, Margaret; Williams, Tony D.; Fernie, Kim J.; Karouna-Renier, Natalie K.; Henry, Paula F. P.; Letcher, Robert J.; Elliott, John E.

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Year Published: 2019

Feather mercury concentrations in North American raptors sampled at migration monitoring stations

We assessed total mercury (THg) concentrations in breast feathers of diurnal North American raptors collected at migration monitoring stations. For 9 species in the Pacific Flyway, we found species and age influenced feather THg concentrations whereas sex did not. Feather THg concentrations µg/g dry weight (dw) averaged (least-squared mean±...

Baurbour, Ryan; Martinico, Breanna L.; Ackerman, Joshua T.; Herzog, Mark P.; Hull, Angus C.; Fish, Allen M.; Hull, Joshua M.

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Year Published: 2019

Tracking legacy mercury in the Hackensack River Estuary using mercury stable isotopes

Spatial redistribution of legacy mercury (Hg) contamination in the Hackensack River estuary (New Jersey, USA) was evaluated using mercury stable isotopes. Total Hg varied from 0.06 to 3.8 µg g-1 in sediment from the tidal Hackensack River and from 15 to 154 µg g-1 near historically contaminated sites in upper Berry's Creek, a tributary of the...

Reinfelder, John R; Janssen, Sarah E.

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Year Published: 2019

Demonstrating the value of Earth observations—methods, practical applications, and solutions—group on Earth observations side event proceedings

Executive SummaryThe U.S. Geological Survey, the National Oceanic and Atmospheric Administration, the European Association for Remote Sensing Companies, and the European Space Agency in coordination with the GEOValue Community hosted a side event to the Group on Earth Observations Plenary on October 23–24, 2017, in Washington, D.C. The workshop,...

Pearlman, Francoise; Lawrence, Collin B.; Pindilli, Emily J.; Geppi, Denna; Shapiro, Carl D.; Grasso, Monica; Pearlman, Jay; Adkins, Jeffery; Sawyer, Geoff; Tassa, Alessandra
Pearlman, F., Lawrence, C.B., Pindilli, E.J., Geppi, D., Shapiro, C.D., Grasso, M., Pearlman, J., Adkins, J., Sawyer, G., and Tassa, A., 2019, Demonstrating the value of Earth observations—Methods, practical applications, and solutions—Group on Earth Observations side event proceedings: U.S. Geological Survey Open-File Report 2019–1033, 33 p., https://doi.org/10.3133/ofr20191033.