The U.S. Geological Survey Environmental Health Mission Area works to safeguard the health of humans and other organisms, by leading research to understand and minimize exposures to chemical and microbial hazards in the environment.
View Full Web SiteUSGS specializes in science at the environment-health interface, by characterizing the processes that affect the interaction among the physical environment, the living environment, and people, and the resulting factors that affect ecological and human exposure to disease agents.
Our Science StrategyAlthough there are ways of developing causal relationships between stressors and aquatic community responses without experimentation; some argue that experimental manipulation under controlled conditions is both critical and necessary to establish causation. Single species toxicity tests are the gold standard for developing toxicant biological response relationships however these tests are...
The Challenge: Black-tailed prairie dogs are considered a keystone species for the prairie habitat. Many avian species are associated with black-tailed prairie dogs (Cynomys ludovicianus) in winter. Raptors feed on prairie dogs and non-raptor avian species forage within prairie dog colonies. However prairie dogs are also considered agricultural pests. The first generation...
Human dimensions in the context of natural resource management refers to the ways humans value natural resources, resource management preferences, and how humans affect or are affected by natural resource management decisions. Natural resource management and policy decisionmaking require incorporation of sound biological, social, and economic science. SEA scientists...
The Challenge: Agricultural, industrial and urban activities have had major effects on waterbirds in Chesapeake and Delaware Bays. Some legacy pollutants (PCBs, organochlorine pesticides, flame retardants, metals) pose a potential threat to wildlife in some locations. Pharmaceuticals, personal care products, and endocrine disrupting compounds have been detected in...
The Challenge: Anticoagulant rodenticides have been identified as being hazardous to predatory and scavenging birds on a global scale. Restrictions on the sale, distribution and packaging of some second generation anticoagulant rodenticides (e.g., brodifacoum, difethialone, bromadiolone and difenacoum) have been instituted by the US EPA, and will likely result in...
The Challenge: Diclofenac is a non-steroidal anti-inflammatory drug that has been used by veterinarians for the treatment of inflammation, fever and pain in domestic livestock. This drug appears to have been the principal cause of a severe population crash of vultures of the genus Gyps in India and Pakistan. Vultures unintentionally ingested diclofenac when...
The Challenge: The Department of the Interior has extensive responsibilities for management of fish and wildlife, and their supporting habitat. Stewardship activities include assessment of potentially adverse effects of natural and anthropogenic stressors on biota, including chemical contaminants. We assist by providing scientific information to support...
The Challenge: Polybrominated diphenyl ether flame retardants (PBDEs) are contaminants that bioaccumulate and biomagnify in aquatic and terrestrial food webs. Unlike many contemporary pollutants, these flame retardants have increased in the environment over the past 30 years. Studies in Chesapeake and Delaware Bays have documented concentrations of nearly 1 μg/g...
The Challenge: The National Contaminant Biomonitoring Program of the U.S. Fish and Wildlife Service has been the only large-scale effort that has examined contaminant exposure in terrestrial vertebrates in the United States. Halogenated contaminants, metals, and new pollutants continue to pose hazards to wildlife at many geographic scales. To address this hazard,...
The Challange: Emerging contaminants may be in part responsible for recent endocrine disruption observed in fish in the Chesapeake Bay watershed. Endocrine active compounds implicated in the decline of fish populations may affect other wildlife as well. There are 6 species of turtles and 5 of snakes living within the main-stem and tidal areas of the Bay. As...
Wetlands of the northern Great Plains are crucial feeding grounds for migrating birds and waterfowl embedded in an agricultural landscape. Land use and hydrology can affect adult aquatic insects – crucial prey for critically declining populations of insectivorous birds. Current studies focus on effects of current-use pesticides on adult aquatic insects to inform decision making about...
In this study we will conduct a series of mesocosm studies to examine the toxicity of cobalt, copper, nickle, and zinc to natural communities of invertebrates. ...
The Clinch-Powell River Basins Spanning Virginia and Tennessee
The Sediment-bound Contaminant Resiliency and Response (SCoRR) Mapping Application was developed to allow users to visualize and view information generated during this study. Additional datasets including Census data, the National Land Cover Database, and National Hydrography data are also provided for users to generate custom maps.
The USGS Environmental Health Mission Area publishes the results of its investigations in journal articles, fact sheets, USGS reports, and on the Web.
View All PublicationsMobilized seafloor sediment can impact benthic reef communities through burial, scour, and turbidity. These processes are ubiquitous in coastal oceans and, through their influence on the survival, fitness, and interactions of species, can alter the structure and function of benthic communities. In northern Monterey Bay, California, USA, as much as...
Jared D. Figurski, Jan Freiwald, Steve I. Lonhart, and Curt D. StorlazziThis study is an investigation into the roles of wildfire and changing agricultural practices in controlling the inter-decadal scale trends of suspended sediment production from semi-arid mountainous rivers. In the test case, a decreasing trend in suspended sediment concentrations was found in the lower Salinas River, California between 1967 and...
A.B. Gray, G.B. Pasternack, E.B. Watson, M.A. Goñi, J.A. Hatten, J.A. WarrickSediment rating curves, which are fitted relationships between river discharge (Q) and suspended-sediment concentration (C), are commonly used to assess patterns and trends in river water quality. In many of these studies, it is assumed that rating curves have a power-law form (i.e. C = aQb, where a and b are fitted parameters). Two fundamental...
Jonathan A. WarrickChemical, physical, and biological data were collected during 2009-2011 as part of a study of the Clinch River in Virginia and Tennessee. The data from this study, data-collection methods, and laboratory analytical methods used in the study are documented in this report.
Krstolic, Jennifer L.; Johnson, Gregory C.; Ostby, Brett J.K.A beach nourishment with approximately 1/3 fine-grained sediment (fines; particle diameter
M. A. Rippy, P. J. S. Franks, F. Feddersen, R. T. Guza, and J. A. WarrickIn addition to news releases on our latest papers, we provide Science Feature Articles that highlight results from environmental health science activities across the U.S. Geological Survey.
See Our Science Feature Articles
A new USGS-NASA study found widespread shoreline loss along heavily oiled areas of Louisiana's coast after the 2010 BP Deepwater Horizon oil spill and compared the erosion from the spill with coastal changes Hurricane Isaac caused in 2012.
Studies on the aquatic food web, tree swallows, and the spread of contaminants take center stage at SETAC 2016.
Building knowledge to protect ecological and human health
Environmental Ratios of Cadmium and Zinc are less Toxic to Aquatic Insects than Expected
As coastal development along the Gulf Coast continues to expand, tidal saline wetlands could have difficulty adjusting to rising sea levels.
ANCHORAGE, Alaska — Some gulls in southcentral Alaska are carriers of antibiotic resistant strains of E. coli, according to a new study co-authored by the U.S. Geological Survey.
Mercury contamination is widespread, at various levels across western North America in air, soil, sediment, plants, fish and wildlife.
A recent study looks at the impact of climate change on certain fish in Wisconsin lakes.
“Whatcha gonna do when they come for you”-thinks this week’s EarthWord...
When you’re not dead yet, but aren’t feeling well either, there’s an EarthWord for that...
New USGS models help predict storm effects on beaches
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