Search Results for the EPA National Library Catalog

Items Found: 26
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Your Search: (SUBJECT=Impurities)

Select Item Title Year Published
Cation Adsorption and Desorption Rates in Natural Water Studies. 1973
Chemical technology and economics in environmental perspectives. Task IV Activated carbon. 1977
Control of organic substances in water and wastewater 1983
Determination of hazardous elements in smelter-produced sulfuric acid / 1974
Determination of Nine Haloacetic Acids in Finished Drinking Water. 1992
Development of a High-Purity Filter for High Temperature Particulate Sampling and Analysis. 1973
Development of a Molten Carbonate Process for Removal of Sulfur Dioxide from Power Plant Stack Gases. Part II. Process Chemistry - Regeneration. 1968
Direct Determination of Metals in Air. 1973
Electrochemical Method for the Determination of Phosphate in Natural Water. 1972
Environmental applications of advanced instrumental analyses : assistance projects, FY 72 / 1973
Environmental Applications of Advanced Instrumental Analyses: Assistance Projects, FY 72. 1973
First things first : a strategy against water pollution. 1974
Health effects division : standard evaluation procedure storage stability study / 1989
Identification of toxic impurities in technical grades of pesticides designated as substitute chemicals / 1978
Infrared Spectroscopic Study of Gas-Solid Interactions. 1971
Methods for Demetallation of Waste Oil 1993
Methylation of Mercury by Microorganisms. 1972
Pesticide regulation (PR) notice 96-8 : notice to manufacturers, formulators, producers and registrants of pesticide products. Toxicologically significant levels of pesticide active ingredients. 1996
Process Costs and Economics of Pyrite-Coal Utilization. 1968
Report to the Advisory Committee on Revision of the Public Health Service 1946 Drinking Water Standards. 1961
Secondary zinc industry emission control problem definition study : part 1--technical study / 1971
Sintering of Nascent Calcium Oxide. 1989
Specific Method for the Determination of Ozone in the Atmosphere. 1972
Strainer/filter treatment of combined sewer overflows / 1969
Variations in the Neurotoxic Potency of Trimethyltin. 1989

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