Search Results for the EPA National Library Catalog

Items Found: 5037
Showing: Items 1051 - 1100
Your Search: (SUBJECT=Concentration composition)


 
 
 
PREV 1 ... 17 18 19 20 21 22 23 24 25 26 27 ... 101 NEXT
Select Item Title Year Published
Columbia River nutrient study, 1972 / 1975
Combined Effect of Sulfur Dioxide and Ozone on Bean and Tobacco Plants. 1976
Combined Sewer Overflow Characteristics from Treatment Plant Data. 1983
Combined Sewer Overflow Toxic Pollutant Study. 1984
Combining a Monostatic Sodar with a Radar Wind Profiler and RASS in a Power Plant Pollution Study. 1995
Combustion additives for pollution control : a state-of-the-art review / 1977
Combustion Modification NOx Controls for Utility Boilers. Volume I: Tangential Coal-Fired Unit Field Test. 1981
Combustion Modification NOx Controls for Utility Boilers. Volume II: Pulverized-Coal Wall-Fired Unit Field Test. 1981
Combustion of hydrothermally treated coals / 1978
Combustion research on characterization of particulate organic matter from flames / 1978
Cometabolism of Low Concentrations of Propachlor, Alachlor, and Cycloate in Sewage and Lake Water. 1985
Comment on 'An Advection-Diffusion Concept for Solute Transport in Heterogeneous Unconsolidated Geological Deposits' by Gillham et al. 1986
Comment on 'Changes in the Chemistry of Surface Waters' by C. T. Driscoll et al. 1989
Commercial marine vessel contributions to emission inventories : final report / 1991
Community structure, nutrient dynamics, and the degradation of diethyl phthalate in aquatic laboratory microcosms 1982
Commuter exposure model : user's guide / 1983
Commuter Exposure Model: Description of Model Methodology and Code. 1983
Comparability between Various Field and Laboratory Woodstove Emission Measurement Methods. 1991
Comparative Kinetic Studies of Nitrate-Limited Growth and Nitrate Uptake in Phytoplankton in Continuous Culture. 1981
Comparative methylation chemistry of platinum, palladium, lead, and manganese / 1976
Comparative potency approach for estimating the cancer risk associated with exposure to mixtures of polycyclic aromatic hydrocarbons (interim report final) {Microfiche} 1988
Comparative Responses of Speckled Dace and Cutthroat Trout to Air-Supersaturated Water. 1981
Comparative Study of Open Source Particulate Emission Measuring Techniques. 1985
Comparative Study of Two Polychlorinated Biphenyl Mixtures (Aroclors 1242 and 1016) Containing 42% Chlorine on Induction of Hepatic Porphyria and Drug Metabolizing Enzymes. 1974
Comparative Toxicity of Arsenic Compounds and Their Accumulation in Invertebrates and Fish. 1980
Comparative toxicity of sewage-effluent disinfection to freshwater aquatic life / 1975
Comparative Toxicity of Six Test Chemicals to Lettuce Using Two Root Elongation Test Methods (Journal Version). 1986
Comparative Toxicity of Ten Organic Chemicals to Ten Common Aquatic Species. 1985
Comparing Epidemiologic Studies of Ingested Asbestos for Use in Risk Assessment. 1983
Comparison between Zeeman and Continuum Background Correction for Graphite Furnace AAS on Environmental Samples. 1987
Comparison of 0600-0900 AM hydrocarbon compositions obtained from 29 cities / 1989
Comparison of Aerosol Acidity in Urban and Semi-Rural Environments. 1992
Comparison of air quality model estimates with measured SO2 concentrations near March Point, Washington / 1986
Comparison of ambient air sampling techniques for volatile organic compounds / 1985
Comparison of ambient NMHC/NOx ratios with NMHC/NOx ratios calculated from emission inventories / 1978
Comparison of automated and manual sulfuric acid sampling systems / 1982
Comparison of Common Solvent Evaporation Techniques in Organic Analysis. 1981
Comparison of design concentrations based on hourly mixing heights estimated by Ramment and Metpro / 1993
Comparison of design concentrations based on hourly mixing heights estimated by RAMMET and METPRO. 1993
Comparison of design concentrations based on hourly mixing heightsd estimated by rammet and metpro. 1993
Comparison of Emissions and Organic Fingerprints from Combustion of Oil and Wood. 1991
Comparison of End-Tidal Breath CO (Carbon Monoxide) Estimates of COHb with Estimates Based on Exposure Profiles of Individuals in the Denver, Colorado and Washington, DC Area. 1984
Comparison of EPA (Environmental Protection Agency) Test House Data with Predictions of an Indoor Air Quality Model. 1988
Comparison of four leachate-generation procedures for solid waste characterization in environmental assessment programs / 1980
Comparison of Indices That Describe the Relationship between Exposure to Ozone and Reduction in the Yield of Agricultural Crops. 1988
Comparison of instantaneous loads calculated using total and total-recoverable trace element concentration data collected at the Susquehanna River, Conowingo Dam, April 1992-1993 addendum to the fall line toxics 1992 final report / 1994
Comparison of Leachable Trace Element Levels in Coal Gasifier Ash with Levels in Power Plant Ash. 1984
Comparison of Local and Central Controls for Indoor Air Quality. 1991
Comparison of measurement techniques for quantifying selected organic emissions from kerosene space heaters. : project summary / 1990
Comparison of Measurements of Atmospheric Ammonia by Filter Packs, Transition-Flow Reactors, Simple and Annular Denuders and Fourier Transform Infrared Spectroscopy. 1990
PREV 1 ... 17 18 19 20 21 22 23 24 25 26 27 ... 101 NEXT

Save, Print or Email Selected Records