Search Results for the EPA National Library Catalog

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Select Item Title Year Published
Uptake, Translocation and Release of Phosphorus by 'Elodea densa'. 1984
Urban stormwater and combined sewer overflow impact on receiving water bodies : proceedings of the national conference, Orlando, Florida November 26-28, 1979 / 1980
USA ballast book 1998-1999 : ballast research in the United States of America / 1998
Use and Nutritional Value of 'Artemia' as a Food Source. 1986
Use of a Floating Periphyton Sampler for Water Pollution Surveillance. 1966
Use of a Novel Plasmid to Monitor the Fate of a Genetically Engineered 'Pseudomonas putida' Strain. 1992
Use of aquatic lethality tests to estimate safe toxicant concentrations for initial ecolological risk assessments / 1989
Use of Aquatic Plants in the Rehabilitation of Acid Polluted Streams. 1972
Use of Autoradiography to Assess Viability of 'Helicobacter pylori' in Water. 1993
Use of biological information to better define designated aquatic life uses in state and tribal water quality standards : tiered aquatic life uses / 2005
Use of Ecoregions in Biological Monitoring. 1992
Use of forest site index for evaluating terrestrial resources at risk from acidic deposition {microfiche} 1990
Use of immunotoxicity assays in aquatic biology research. 1999
Use of Marsh Plants for Toxicity Testing of Water and Sediment. 1992
Use of Microscopic Organisms as Ecological Indicators and Methods of Sampling and Manipulation. 1945
Use of Periphyton in the Development of Biocriteria. 1994
Use of Pesticides in Suburban Homes and Gardens and Their Impact on the Aquatic Environment. 1972
Use of probabilistic information in the water quality based approach / 1984
Use of Respiratory-Cardiovascular Responses of Rainbow Trout ('Salmo gairdneri') in Identifying Acute Toxicity Syndromes in Fish: Part 1. Pentachlorophenol, 2,4-Dinitrophenol, Tricaine. Methanesulfonate and 1-Octanol. 1987
Use of the Grass Shrimp 'Palaemonetes pugio' in a Life-Cycle Toxicity Test. 1979
Use of the mixed flask culture (MFC) microcosm protocol to estimate the survival and effects of microorganisms added to freshwater ecosystems / 1989
Use of Water Hyacinth Aquatic Treatment Systems for Ammonia Control and Effluent Polishing. 1984
USEPA method study, method 510.1, the determination of the maximum total trihalomethane potential / 1987
User guide: acute to chronic estimation / 1999
User's guide and data dictionary for Kenai Lakes Investigation Project / 1992
User's Guide to Chesapeake Bay Program Biological and Living Resources Monitoring Data, 2000. 2000
User's manual for pollutant of concern matrix / 1986
User's manual for the instream sediment-contaminant transport model SERATRA / 1982
Users Guide to Chesapeake Bay Program Biological and Living Resources Monitoring Data, 1997. 1997
Uses of Environmental Maps in Determining Areas of Noncompliance. 1977
Using aquatic macroinvertebrates to assess stream condition in the Clackamas River Basin, Oregon / 2001
Using the Sediment Quality Triad to Characterize Toxic Conditions in the Chesapeake Bay (2002): An Assessment of Tidal River Segments in the Bohemia, Elk, Northeast, and Severn Rivers. 2005
Using your head to help protect our aquatic resources : you can help protect these precious natural resources, find out how!. 2000
Utah aquatic invasive species management plan / 2009
Utah Lake Drainage Basin Water Delivery System: Environmental Impact Statement: Draft Aquatic Resources Technical Report 2004
Utilization of a saltwater marsh ecosystem for the management of seafood processing wastewater / 1986
Utilization of natural ecosystems for wastewater renovation / 1979
UV Damage and Photoreactivation Potentials of Larval Shrimp, 'Pandalus platyceros', and Adult Euphausiids, 'Thysanoessa raschii'. 1983
UV effects in aquatic organisms and ecosystems / 2003
Validity of ambient toxicity tests for predicting biological impact, Ohio River, near Wheeling, West Virginia / 1986
Validity of effluent and ambient toxicity tests for predicting biological impact, Kanawha River, Charleston, West Virginia / 1986
Validity of laboratory tests for predicting copper toxicity in streams / 1976
Valuation for Environmental Policy: Ecological Benefits. 2007
Value of aquatic model ecosystem studies in ecotoxicology 1997
Valuing ecosystem services : toward better environmental decision-making / 2004
Valuing ecosystem services : toward better environmental decision-making / 2005
Variability in Diatom and Chrysophyte Assemblages and Inferred pH: Paleolimnological Studies of Big Moose Lake, New York, USA. 1991
Vascular Aquatic Plants in Acid Mine Water of the Monongahela River, West Virginia. 1971
Vegetation of the Russel Fork Haysi Lake Project, Haysi, VA 1990
Vegetative resistance to flow in south Florida : summary of vegetation sampling in Taylor Slough, Everglades National Park, September, 1997-July 1998 / 2001
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