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USGS Toxic Substances Hydrology Program
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Toxic Substances Hydrology Program
The Toxic Substances Hydrology Program provides objective scientific information on environmental contamination to improve characterization and management of contaminated sites, to protect human and environmental health, and to reduce potential future contamination problems. Read more about the Toxics Program
Recent Headlines
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Research Projects
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Detergents in Streams May Just Disappear
Emerging Contaminants Targeted in a Reconnaissance of Ground Water and Untreated Drinking-Water Sources
Biosolids, Animal Manure, and Earthworms: Is There a Connection?
Climate-Driven Ocean Changes Affect Estuaries: Pacific Ocean Cooling Triggers Phytoplankton Blooms in San Francisco Bay
USGS Science Featured in a Special Issue of Applied Geochemistry on Contamination from Oil Production
Hydrogen Measured in a New Test for Determining Subsurface Microbiological Activity at Contamination Sites
Subsurface Point-Source Contamination
Projects: Petroleum (crude, gasolene, produced water) | Chlorinated Solvents | Mixed Wastes (landfills, wastewater) | Fractured-Rock Aquifers
Watershed-and Regional Scale Contamination
Projects: Hard-Rock Mining | Pesticides | Emerging Contaminants | Mercury | Amphibian Research | Priority Ecosystems
Methods Development
Topics: Microbial Geochemistry | Geochemistry | Hydrology | Contaminant Geophysics | Modeling
Crosscutting Topics
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Agricultural Chemicals
Contaminant Occurrence Studies
Contaminant Plume Geochemistry and Microbiology
Geophysical Characterization
Ground-Water Contaminant Transport
Methods
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Natural Attenuation
Nutrients
Site Remediation
Surface-Water Contaminant Transport
Tracer Tests
Unsaturated Zone
Photo Gallery
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 USGS scientists electrofishing on the Lookout Creek near the Blue River, OR. The fish they collected were analyzed for mercury content and added to the data base that the National Fish Mercury Model is based on -- from the Effect of Mercury on Aquatic Ecosystems Investigation
New Publications
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Meetings
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Selected New Publications
Diel changes in metal concentrations in a geogenically acidic river--Rio Agrio, Argentina: Parker, S.R., Gammons, C.H., Pedrozo, F.L., and Wood, S.A., 2008, Journal of Volcanology and Geothermal Research, v. 178, no. 2, p. 213-223, doi:10.1016/j.jvolgeores.2008.06.029. Influence of plankton mercury dynamics and trophic pathways on mercury concentrations of top predator fish of a mining-impacted reservoir: Stewart, A.R., Saiki, M.K., Kuwabara, J.S., Alpers, C.N., Marvin-DiPasquale, M., and Krabbenhoft, D.P., 2008, Canadian Journal of Fisheries and Aquatic Sciences, v. 65, no. 11, p. 2,351-2,366. A national reconnaissance of pharmaceuticals and other organic wastewater contaminants in the United States--II. Untreated drinking water sources: Focazio, M.J., Kolpin, D.W., Barnes, K.K., Furlong, E.T., Meyer, M.T., Zaugg, S.D., Barber, L.B., and Thurman, E.M., 2008, Science of the Total Environment, v. 402, no. 2-3, p. 201-216, doi:10.1016/j.scitotenv.2008.02.021.
Upcoming Publications
An empirical method for estimating instream pre-mining pH and dissolved Cu concentration in catchments with acidic drainage and ferricrete: Nimick, D.A., Gurrieri, J.T., and Furniss, G., Applied Geochemistry, doi:10.1016/j.apgeochem.2008.11.007 (IN PRESS). Comparison of wastewater chemicals, bacteria concentrations, and bacterial pathogen genes as indicators of fecal pollution: Haack, S.K., Duris, J.W., Fogarty, L.R., Kolpin, D.W., Focazio, M.J., Meyer, M.T., and Furlong, E.T., Journal of Environmental Quality (IN PRESS). Transport of tritium contamination from the shallow unsaturated zone to the atmosphere in an arid environment: Garcia, C.A., Andraski, B.J., Stonestrom, D.A., Cooper, C.A., Johnson, M.J., Michel, R.L., and Wheatcraft, S.W., Vadose Zone Journal (IN PRESS).
USGS and Colorado State University co-sponsor EmCon2009-2nd International Conference on Occurrence, Fate, Effects, and Analysis of Emerging Contaminants in the Environment, Fort Collins, Colorado, August 4-7, 2009 The USGS cosponsors the special session Hydrogeological Research Sites and Observatories at the 2008 AGU Fall Meeting, San Francisco, California, December 15-19, 2008 USGS is co-sponsoring the short course Environmental Fate and Effects of Emerging Contaminants at the SETAC North America 29th Annual Meeting, Tampa, Florida, November 16-20, 2008 USGS sponsors the special session In Situ Approaches for Measuring Biodegradation Potential and Rates in Subsurface Environments at the 2008 Joint Annual Meeting, Houston, Texas, October 5-9, 2008 USGS and the University of Wisconsin-Madison are cosponsoring the joint session A Celebration of Soil Science, Solute Transport, and National-Scale Water-Quality Research: In Honor of Jacob Rubin at the 2008 Joint Annual Meeting, Houston, Texas, October 5-9, 2008 USGS and EPA host the USGS/EPA Workshop on Transport and Remediation of Chlorinated Solvents in Fractured Sedimentary Rocks, West Trenton, New Jersey, September 25, 2008 USGS co-sponsor the special session Characterizing Ground-Water Flow and Chemical Transport in Fractured-Rock Aquifers at the 2008 Western Pacific Geophysics Meeting in Cairns, Australia, on July 29-August 1, 2008 USGS and Virginia Tech present the NGWA's short course "Estimating Times of Remediation Associated with Monitored Natural Attenuation and Contaminant Source Removal," Tucson, Ariz., March 17-18, 2008
Toxics Home
About The Program
Research Projects
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Crosscutting Topics
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Contaminant Occurrence
Contaminant Plumes
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Contaminant Transport (SW)
Geophysical Characterization
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Natural Attenuation
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Tracer Tests
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