Search Results for the EPA National Library Catalog

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Showing: Items 351 - 400
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An assessment of the macroinvertebrate communities of the Indian Creek Watershed, Tazewell County, Virginia / 2003
An automated monitoring system for fish physiology and toxicology / 1989
An avoidance response bioassay for aquatic pollutants : completion report / 1980
An ecological assessment of the of invasive and aggressive plant species in coastal wetlands of the Laurential Great Lakes : a combined field-based and remote-sensing approach. Research plan. / 2001
An Ecological assessment of Western streams and rivers / 2005
An ecological study of hexachlorobenzene (HCB) / 1976
An ecological study of hexachlorobenzene (HCB) / 1976
An ecological study of hexachlorobutadiene (HCBD) / 1976
An Emergence trap for aquatic insects / 1969
An enclosed aquatic multispecies test system for testing microbial pest control agents with non-target species / 1989
An enclosed aquatic multispecies test system for testing microbial pest control agents with non-target species / 1989
An enclosed aquatic multispecies test system for testing microbial pest control agents with non-target species / 1989
An evaluation and compilation of the reported effects of acidification on aquatic biota / 1986
An illustrated guide to the mountain stream insects of Colorado / 1992
An illustrated key to the planktonic rotifers of the Laurentian Great Lakes / 1977
An integrative approach to prioritizing and restoring aquatic habitat connectivity in a national park setting : the case of Kejimkujik / 2014
An introduction to Mid-Atlantic seasonal pools / 2005
An introduction to the aquatic insects of North America / 1996
An Introduction to the aquatic insects of North America / 1984
An iterative approach for identifying the causes of reduced benthic macroinvertebrate diversity in the Willimantic River, Connecticut [electronic resource] . 2010
An SAB report : ecological impacts and evaluation criteria for the use of structures in marsh management / 1998
Analyses of acute and chronic data for aquatic life / 1995
Analysis and Interpretation of Zooplankton Samples Collected during Phase 2 of the Eastern Lake Survey. 1992
Analysis of aquatic invertebrates lc50 test results utilizing the modified tucker haegele ratio method. 1985
Analysis of critical habitat requirements for restoration and growth of submerged vascular plants in the Delaware and Maryland coastal bays / 1997
Analysis of Mercurials in the Elephant Butte Ecosystem. 1974
Analysis of national occurrence of the 1998 contaminant candidate list (CCL) regulatory determination priority contaminants in public water systems. 2004
Analysis of Pollution from Marine Engines and Effects on the Environment. 1975
Analysis of Pollution from Marine Engines and Effects on the Environment. Southern Lakes. 1975
Analysis of Pollution from Marine Engines and Effects on the Environment. Summary Report. 1975
Analysis of Regional Lake Water Quality Patterns: Implications for Lake Resource Management in Minnesota. 1987
Analysis of Tap Water for Viruses: Results of a Survey. 1985
Analysis of the Benthic Macroinvertebrate Community Structure for Assessment of Water Quality of the Des Moines River. 1973
Analysis of trace organics in the aquatic environment / 1989
Analytical measurements in aquatic environments / 2010
Analytical Methodology for the Determination of Kepone (Trademark) Residues in Fish, Shellfish, and Hi-Vol Air Filters. 1977
Analytical methods necessary to implement risk-based criteria for chemicals in municipal sludge / 1989
Analytical Studies for the U.S. Environmental Protection Agency. Volume IV. Environmental Monitoring. 1977
Analyzing the hazard evaluation process : proceedings of a workshop held in Waterville Valley, New Hampshire, August 14-18, 1978 / 1979
Animal Infestations in Distribution Systems. 1962
Animal-Sediment Relationships of the Upper and Central Chesapeake Bay. 1983
Animal-Sediment Relationships: A Case Study of the Patapsco River. 1983
Animas - La Plata Project, Colorado-New Mexico, Summary of the Draft Supplemental Environmental Impact Statement 2000
Animas-La Plata Project, Colorado-New Mexico, Final Supplement to the Final Environmental Statement, Volume II 1996
Annotated bibliography of the aquatic macrophytes of the Upper Mississippi River covering the area from Cairo, Illinois to St. Paul, Minnesota / 1983
Annotated Bibliography of the Masters Theses and Doctoral Dissertations on Water Resources and Their Uses, 1930-1970. 1971
Annotated bibliography on biological effects of metals in aquatic environments (no. 1-567). 1973
Annual progress report : Chesapeake Bay alosid, blue crab, oyster, bluefish, weakfish/spotted seatrout, American eel, Atlantic croaker/spot, and summer flounder : Chesapeake Bay Program / 1992
Annual progress report : Chesapeake Bay striped bass fishery management plan : a commitment progress report / 1993
Annual progress report : fishery management plans 1994 : alosid, blue crab, oyster, bluefish, weakfish/spotted seatrout, summer flounder, Atlantic croaker/spot, American eel, black drum, red drum / 1995
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