Search Results for the EPA National Library Catalog

Items Found: 5233

Showing: Items 5101 - 5150

Your Search: (SUBJECT=Concentration Composition)


Select Item Title Year Published
Utility of Buoyant Plume Models in Predicting the Initial Dilution of Drilling Fluids. Chapter 13. 1990
Utility of reactivity criteria in organic control strategies : application to the Los Angeles atmosphere / 1976
Utilization of natural ecosystems for wastewater renovation / 1979
UV-Sensitive Complex Phosphorus: Association with Dissolved Humic Materials and Iron in a Bog Lake. 1982
Validation and Sensitivity Analysis of the Gaussian Plume Multiple-Source Urban Diffusion Model. 1971
Validation of a method for estimating pollution emission rates using open-path FTIR spectroscopy and modeling techniques / 1993
Validation of air monitoring data. 1980
Validation of the EKMA Model Using Historical Air Quality Data. 1982
Validation of the Semi-Volatile Organic Sampling Train Method for Measuring Emissions from Hazardous Waste Incinerators. 1985
Validation of VOC Emissions Inventories by Source Apportionment and (14)C Dating Methods. Part 1. 1994
Validation Study of an Approach for Evaluating the Impact of a Shopping Center on Ambient Carbon Monoxide Concentrations. 1974
Validation Testing of New Mechanisms with Outdoor Chamber Data. Volume 1: Comparison of CB4 and CAL Mechanisms. 1989
Validation Testing of New Mechanisms with Outdoor Chamber Data. Volume 2: Analysis of VOC Data for the CB4 and CAL Photochemical Mechanisms. 1989
Validation Testing of New Mechanisms with Outdoor Chamber Data. Volume 4: Appendixes to Photochemical Reaction Photolysis Rates in the UNC Outdoor Chamber. 1989
Validity of laboratory tests for predicting copper toxicity in streams / 1976
Valley Model Computer Program. 1977
Valley Model user's guide / 1977
Vapor sampling device for interface with microtox assay for screening toxic industrial chemicals / 2004
Variability and correlation in raw and clean coal : measurement and analysis / 1983
Variability of I/M Test Scores over Time. 1988
Variation in Elemental Content of Lettuce Grown Under Base-Line Conditions in Five Controlled-Environment Facilities. 1982
Variation of Urban Runoff with Duration and Intensity of Storms. 1970
Variations of Coliform Bacteria and Other Pollution Indices in Surface Waters. 1965
Vehicle exhaust emission instruments evaluation / 1977
Verification of the isopleth method for relating photochemical oxidant to precursors / 1978
Versatile gas filter correlation spectrometer 1975
Vertebral Dysplasia in Young Fish Exposed to the Herbicide Trifluralin. 1979
Vertical fluxes and exchange coefficients in the air over St. Louis : field program 1975 / 1977
Vertical Ozone Fluxes and Related Deposition Parameters Over Agricultural and Forested Landscapes. 1990
Viability of Embryos of the Winter Flounder 'Pseudopleuronectes americanus' Exposed to Mixtures of Cadmium and Silver in Combination with Selected Fixed Salinities. 1982
Virgin River Study - Utah: March, 1976. 1977
Virginian Province demonstration report : EMAP-estuaries, 1990 / 1993
Virion Aggregation and Disinfection of Water by Chlorine and Bromine. 1982
Virion Aggregation and Disinfection of Water Viruses by Bromine. 1976
VIRTUS, a model of virus transport in unsaturated soils / 1992
Viruses, Organics, and Other Health-Related Constituents of the Occoquan Watershed and Water Service Area. Part II. Viruses. 1981
Viruses, organics, and other health-related constituents of the Occoquan watershed and water-service area / 1979
Visibility in the Northeast : long-term visibility trends and visibility/pollutant relationships / 1978
Visual Inspection and AHERA Clearance at Asbestos Abatement Sites. 1991
VOC emissions reduction study for oxidant attainment in Massachusetts, Rhode Island, and Connecticut / 1979
VOCs in Mexico City ambient air 1993
Volatile Organic Chemicals in the Atmosphere: An Assessment of Available Data. 1983
Volatile Organic Compound Emission Inventory for Non-Attainment Areas in Louisiana. 1978
Volatile organic compound emission inventory for Tennessee Eastman Company 1978
Volatile organic compound emissions from solvent cleaning operations in the state of Illinois / 1981
Volatile Organic Compounds in 600 U.S. Homes: Major Sources of Personal Exposure. 1987
Volatile Organic Compounds in Indoor Air: A Survey of Various Structures. 1985
Volatile organic compounds in the ambient atmosphere of the New Jersey, New York area / 1983
Volatile organic sampling train - soot interference report / 1993
Voltammetric Methods for Determination of Metal Binding by Fulvic Acid. 1980

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