Search Results for the EPA National Library Catalog

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Select Item Title Year Published
Ultrasound its chemical, physical, and biological effects / 1988
Ultrastructure of Thyroid Gland in Rats Receiving PCBs. 1977
Ultraviolet microbiological water treatment systems 1991
Ultraviolet radiation and melanoma : with a special focus on assessing the risks of stratospheric ozone depletion Appendix A, Assessing the risks of stratospheric ozone depletion} / 1988
Under a green sky : global warming, the mass extinctions of the past, and what they can tell us about our future / 2007
Understanding bioremediation : a guidebook for citizens. 1991
Understanding climate's influence on human evolution / 2010
Understanding marine biodiversity : a research agenda for the nation / 1995
Understanding the Dynamics of Biological Systems Lessons Learned from Integrative Systems Biology / [electronic resource] : 2011
Understanding the Role of Ozone Stress in Altering Belowground Processes. 2000
Understanding toxicology : a biological approach / 2017
Unfinished synthesis : biological hierarchies and modern evolutionary thought / 1985
United States/German Bilateral Agreement on Hazardous Waste Site Clean-up Projects. 1995
Update of the U.S. Environmental Protection Agency's SITE Emerging Technology Program, 1993. 1994
Upgrading primary tanks with rotating biological contractors / 1980
Upgrading Textile Operations to Reduce Pollution. Volume 1. In-Plant Control of Pollution. 1974
Upgrading Textile Operations to Reduce Pollution. Volume 2. Wastewater Treatment Systems. 1974
Upper Gunnison River drainage 1975
Upper Susquehanna Subbasin : a water quality and biological assessment / 1999
Upper Susquehanna Subbasin Small Watershed Study: A Water Quality and Biological Assessment of the Watersheds Surrounding Whitney Point Lake, Broome and Cortland Counties, N.Y. 2009
Upper Susquehanna Subbasin Survey: A Water Quality and Biological Assessment, June--September 2007. 2007
Upper Susquehanna Subbasin Survey: Small Watershed Study. Monitoring Report No. 1A; October 1, 1999 through AUgust 31, 2000. 2001
Upper Susquehanna Subbasin; A Water Quality and Biological Assessment. 1999. 1999
Uptake and Depuration Studies of PCDDs and PCDFs in Freshwater Fish. 1986
Uptake and utilization of amino acids during anaerobic digestion / 1965
Urban Pest Management. 1980
US chemical-biological defense guidebook 1997
USAMRIID's medical management of biological casualties handbook 2004
USAMRIID's medical management of biological casualties handbook / 2005
USDA IR-4/EPA minor use biopesticide workshop : Washington, D.C. November 7-8, 1995 / 1995
Use of arthropods to evaluate water quality of streams 1977
Use of Artificial Wetlands to Remove Nitrogen from Wastewater. 1984
Use of bioassay procedures for assessment of internal radionuclide deposition : recommendations of the National Council on Radiation Protection and Measurements. 1987
Use of Biological Warfare Agents in Public Water Supplies. 1953
Use of biomarkers in assessing health and environmental impacts of chemical pollutants 1993
Use of Biomarkers in Quantitative Risk Assessment. 1993
Use of Fungi Imperfecti in waste control. 1970
Use of Hazard Models in Evaluating the Effect of Exposure Duration on the Acute Toxicity of Three Pesticides. 1990
Use of immunotoxicity assays in aquatic biology research. 1999
Use of Inoculation in Bioremediation. 1992
Use of Phloxine B and Rose Bengal Stains to Facilitate Sorting Benthos Samples. 1966
Use of Quantitative Two-Dimensional Gel Electrophoresis to Analyze Changes in Alveolar Macrophage Proteins in Humans Exposed to Ozone. 1989
Use of riparian vegetated filter strips to reduce nitrate and fecal contamination in surface water 1994
Use of sodium pentachlorophenate and dehydroabietic acid as reference toxicants for salmonid bioassays 1974
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
User's Guide to Chesapeake Bay Program Biological and Living Resources Monitoring Data, 2000. 2000
User's manual for parameter estimation for first order ultimate BOD decay, BODFO 1987
Using environmental indicators for surface water quality planning and management : Region 5 pilot study. 1991
Using fish tissue data to monitor remedy effectiveness {electronic resource} / 2008
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