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United States Environmental Protection Agency
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Search Results for the EPA National Library Catalog
Items Found: 724
Showing: Items 101 - 150
Your Search: (SUBJECT=Aquatic ecosystems)
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ARARs Q's and A's : compliance with federal water quality criteria.
Artificial Sediments for Use in Tests with Wetland Plants.
Assessing contaminant sensitivity of endangered and threatened species : effluent toxicity tests /
Assessing contaminant sensitivity of endangered and threatened species: effluent toxicity tests /
Assessing the interactions of organic compounds during biodegradation of complex waste mixtures by naturally occurring bacterial assemblages /
Assessing Trends in Fishery Resources and Lake Water Aluminum from Paleolimnological Analyses of Siliceous Algae.
Assessment of deposition levels of sulfur and nitrogen required to protect aquatic resources in selected sensitve regions of North America /
Assessment of nitrogen loads to aquatic systems /
Assessment of nitrogen loads to aquatic systems /
Assessment of nitrogen loads to aquatic systems : project summary /
Assessment of the Lake Michigan Monitoring Inventory: A Report on the Lake Michigan Tributary Monitoring Project.
Assessment of the Marine Biofouling Introductions to the Puget Sound Region of Washington State.
Assessment of the precision and accuracy of SAM and MFC microcosms exposed to toxicants /
ASTER: An Integration of the ACQUIRE Data Base and the QSAR System for Use in Ecological Risk Assessments.
Atmospheric Deposition in Maryland: Assessment of Status, Trends, and Environmental Effects.
Atmospheric Organic Nitrogen Deposition: EPA Chesapeake Bay Program Workshop Meeting. Held in College Park, Maryland on May 20-21, 1998.
Attachment and Replication of 'Pseudomonas aeruginosa' Bacteriophages under Conditions Simulating Aquatic Environments.
Automated NaI 'well' counting system for the determination of radiocaesium.
Available Technology for the Control of Nutrient Pollution in the Chesapeake Bay Watershed.
Avian Richness Evaluation Method (AREM) for Lowland Wetlands of the Colorado Plateau (User's Manual) (for Microcomputers).
Bacterial Growth Efficiency on Natural Dissolved Organic Matter.
Basin-Specific Characterizations of Chesapeake Bay Living Resources Status.
BASINS 4.0 Climate Assessment Tool (CAT): Supporting Documentation and User's Manual.
Bay barometer : a health and restoration assessment of the Chesapeake Bay and watershed in 2008 /
Benthic Distribution of Sewage Sludge Indicated by 'Clostridium perfringens' at a Deep-Ocean Dump Site.
Benthic Infauna of Tampa Bay, Summer 1993. A Technical Data Report.
Best Management Practices for Pollution Prevention in the Textile Industry. EPA Manual.
Best Management Practices for Sediment Control and Water Clarity Enhancement.
Bioaccumulation and Aquatic System Simulator (BASS) user's manual /
Bioaccumulation and Aquatic System Simulator (BASS) User's Manual. Version 2.2.
Bioaccumulation and Toxicity of 2,3,7,8-Tetrachlorodibenzo-p-dioxin and Related Compounds in Aquatic Ecosystems.
Bioaccumulation factor portions of the proposed water quality guidance for the Great Lakes system.
Bioaccumulation Monitoring Guidance. 3. Recommended Analytical Detection Limits.
Bioaccumulation testing and interpretation for the purpose of sediment quality assessment : status and needs /
Bioavailability and Biotransformation of Polycyclic Aromatic Hydroacrbons in Benthic Environments of Coastal Massachusetts. Report to the Massachusetts Bays Program.
Biodiversity and Management of Natural Resources: The Issues.
Biological characterization of the Middle Fork Anderson River, Perry County, Indiana /
Biological criteria : guide to technical literature /
Biological criteria : national program guidance for surface waters.
Biological criteria : state development and implementation efforts.
Biological criteria : technical guidance for streams and small rivers /
Biological criteria development for large rivers with an emphasis on an assessment of the White River drainage, Indiana /
Biological Criteria: Technical Guidance for Streams and Small Rivers.
Biological Diversity and Biological Integrity: Current Concerns for Lakes and Streams.
Biological Effects of Wastes Discharged to the North Platte River, Torrington, Wyoming-Bridgeport, Nebraska November 14 and 15, 1962.
Biological Investigations of Lake Wingra.
Bioluminescent Sensors for Detection of Bioavailable Hg(II) in the Environment.
Biomagnification of Bioassay Derived 2,3,7,8-Tetrachlorodibenzo-p-Dioxin Equivalents.
Biomonitoring for control of toxicity in effluent discharges to the marine environment.
Blue Crab, 'Callinectes sapidus', Hemocyanin Concentrations as an Indicator of Environmental Conditions in the Albemarle/Pamlico Estuary.
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