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Search Results for the EPA National Library Catalog
Items Found: 496
Showing: Items 151 - 200
Your Search: (SUBJECT=Seasonal variations)
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Title
Year Published
151
Effects of Season and Substrate on Availability of Drift for Fish in a Small Warmwater Stream.
1985
152
Effects of sewage sludge on the cadmium and zinc content of crops /
1981
153
Effects of Temperature, Ration, and Size on the Growth of Juvenile Steelhead Trout, Salmo Gairdneri.
1973
154
Effects of Ultraviolet-B Radiation on Loblolly Pine. 1. Growth, Photosynthesis and Pigment Production in Greenhouse-Grown Seedlings.
1989
155
Effects of Water Management Practices on the Movement of Largemouth Bass.
1973
156
Effluent Ammonia Variability from Nitrification Facilities.
1984
157
Effluent Variability in the Meat-Packing and Poultry Processing Industries.
1975
158
El Paso Metropolitan Area Air Pollutant Emission Inventory.
1970
159
Environmental Assessment of an Active Oil Field in the Northwestern Gulf of Mexico, 1977-1978. Volume II. Data Management and Biological Investigations.
1979
160
Environmental Assessment of Buccaneer Gas and Oil Field in the Northwestern Gulf of Mexico, 1978-1979. Volume VIII. Trace Metals.
1980
161
Environmental effects of Western coal combustion.
1978
162
Environmental effects of Western coal surface mining : part II, the aquatic macroinvertebrates of Trout Creek, Colorado /
1978
163
Environmental Factors Influencing Methanogenesis in a Shallow Anoxic Aquifer: A Field and Laboratory Study.
1990
164
Environmental requirements and pollution tolerance of common freshwater chironoidae /
1977
165
Environmental requirements and pollution tolerance of freshwater diatoms /
1974
166
Estimation of seasonal and annual acidic deposition through aggregation of three-day episodic periods /
1990
167
Estuarine Ecosystems and High Temperatures.
1972
168
Eutrophication as a Problem in the Finger Lakes.
1972
169
Eutrophication of Water Resources of New York State. Observations on Nutrient Limitation on Summer Phytoplankton in Cayuga Lake, 1967 and 1968.
1970
170
Evaluation of a Deterministic Model for Predicting Water Yields from Small Agricultural Watersheds in Virginia.
1972
171
Evaluation of a hydrosalinity model of irrigation return flow water quality in the Mesilla Valley, New Mexico /
1979
172
Evaluation of Dispersed Pollutional Loads from Urban Areas.
1970
173
Evaluation of Environmental Alterations by Thermal Loading and Acid Pollution in the Cooling Reservoir of a Steam-Electric Station.
1970
174
Evaluation of Long-Term Sulfur Deposition Models.
1989
175
Evaluation of the Kriging Method to Predict 7-h Seasonal Mean Ozone Concentrations for Estimating Crop Losses (Journal Version).
1987
176
Evaluation of various alternative ambient ozone standards based on crop yield loss data, {microfiche} / by David T. Tingey, William E. Hogsett, E. Henry Lee, Andrew A. Herstrom and Sandra H. Azevedo.
1990
177
Evaluation of Wetland Development and Waterbird Response at Elk Creek Wildlife Management Area, Lake Mills, Iowa, 1961 to 1990.
1991
178
Executive Summary: Winter and Spring Water Quality Survey of Acid Mine Drainage Neutralization Plants.
1975
179
Existing visibility levels in the United States : isopleth maps of visibility in suburban/nonurban area during 1974-76 /
1979
180
Exposure Assessment Approaches to Evaluate Respiratory Health Effects of Particulate Matter and Nitrogen Dioxide.
1991
181
Exposure of high risk subpopulations to particles : final report (APM-21)/
2003
182
Exposures to Acidic Aerosols.
1989
183
Fargo-Moorhead Metropolitan Area Air Pollutant Emission Inventory Report.
1970
184
Fate and biological effects of cadmium introduced into channel microcosms /
1979
185
Fate and Effects of Crude Oil Spilled on Subarctic Permafrost Terrain in Interior Alaska.
1980
186
Feasibility of including regional and temporal VOC emissions estimates in the EPA emissions trends report /
1990
187
Feasibility of overland flow for treatment of raw domestic wastewater /
1974
188
Field Calibration of Soil Core Microcosms for Evaluating Fate and Effects of Genetically Engineered Microorganisms in Terrestrial Ecosystems.
1991
189
Field Testing and Adaptation of a Methodology to Measure 'In-Stream' Values in the Tongue River, Northern Great Plains (NGP) Region - Executive Summary.
1978
190
Field Testing and Adaptation of a Methodology to Measure 'In-Stream' Values in the Tongue River, Northern Great Plains (NGP) Region.
1978
191
Flow Regime, Juvenile Abundance, and the Assemblage Structure of Stream Fishes.
1985
192
Fluctuations in Nitrate Concentrations Utilized as an Assessment of Agricultural Contamination to an Aquifer of a Semiarid Climatic Region.
1972
193
Fluoride in Glacier National Park : a field investigation.
1973
194
Franklin County, Ohio air pollutant emission inventory
1970
195
Frequency Distributions for Durations and Volumes of Rainfalls in the Eastern United States in Relation to Acidic Precipitation.
1984
196
General Circulation Model Output for Forest Climate Change Research and Applications.
1994
197
Generalized Water Quality Model for Eutrophic Lakes and Reservoirs.
1974
198
Growth Dynamics of 'Cladophora glomerata' in Western Lake Erie in Relation to Some Environmental Factors.
1982
199
Habitat structure and fish communities of warmwater streams /
1983
200
Haze and Sulfur Emission Trends in the Eastern United States.
1992
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