Search Results for the EPA National Library Catalog

Items Found: 5037
Showing: Items 4451 - 4500
Your Search: (SUBJECT=Concentration composition)


 
 
 
PREV 1 ... 85 86 87 88 89 90 91 92 93 94 95 ... 101 NEXT
Select Item Title Year Published
Surfactant-Enhanced Solubilization of Residual Dodecane in Soil Columns. 2. Mathematical Modeling. 1993
Surrogate Species Chemical Reaction Mechanism for Urban-Scale Air Quality Simulation Models. Volume 2. Guidelines for Using the Mechanism. 1987
Surveillance and analysis: A summary of the water quality data record for South Puget Sound 1934 to 1967 / 1975
Surveillance Study of Control Equipped Heavy-Duty Gasoline Powered Vehicles. 1972
Survey Data Report in Support of the Sediment Ecological Risk Assessment at the Calcasieu Estuary, Louisiana: Sediment Porewater Toxicity Tests and Dissolved Organic Carbon Analysis of Pore Water. 2001
Survey of cadmium emission sources 1981
Survey of chemical factors in Saginaw Bay (Lake Huron) / 1977
Survey of chloroform emission sources / 1985
Survey of Coal Availabilities by Sulfur Content. 1972
Survey of Data from the Continuous Sites of the 1990 Atlanta Ozone Precursor Study. 1992
Survey of fugitive dust from coal mines : prepared for U.S. Environmental Protection Agency / 1978
Survey of Insecticide Spray Practices Used in the Fruit Orchards of North Central Washington. 1953
Survey of Insecticide Spray Practices Used in the Fruit Orchards of North Central Washington. 1953
Survey of laboratory studies relating to the sorption/desorption of contaminants on selected well casing materials / 1992
Survey of Lentic Waters with Respect to Dissolved and Particulate Lead. 1972
Survey of Metals in Sediments Near Quonset Point, Rhode Island. 1977
Survey of methylene chloride emission sources / 1985
Survey of Polybrominated Biphenyls (PBBs) Near Sites of Manufacture and Use in Northeastern New Jersey. 1979
Survey of portable analyzers for the measurement of gaseous fugitive emissions : final report / prepared by: Timothy Skelding. 1992
Survey of the role NOx in nonurban ozone formation / 1979
Survey of the toxicity and chemical composition of used drilling muds 1984
Survey of tributyltin and dibutyltin concentrations at selected harbors in Chesapeake Bay : final report / 1987
Survey of trichloroethylene emission sources / 1985
Survival and Growth of 'Tanytarsus dissimilis' (Chironomidae) Exposed to Copper, Cadmium, Zinc, and Lead. 1980
Survival and immune response of Coho salmon exposed to copper / 1977
Survival of daphnia, crayfish, and stoneflies in air-supersaturated water / 1976
Survival, Reproduction and Bioconcentration in Invertebrates and Fish Exposed to Hexachlorobenzene. 1989
Susceptibility and Status of Gulf of Mexico Estuaries to Nutrient Discharges. Strategic Assessment of Near Coastal Waters. 1989
Susceptibility of Aquatic and Terrestrial Resources of Minnesota, Wisconsin, and Michigan to Impacts from Acid Precipitation: Informational Requirements. 1984
Susceptibility of East Coast Estuaries to Nutrient Discharges: Albemarle/Pamlico Sound to Biscayne Bay. 1989
Susceptibility of East Coast Estuaries to Nutrient Discharges: Passamaquoddy Bay to Chesapeake Bay. 1989
Susceptibility of Steelhead Trout 'Salmo gairdneri' Richardson to Redmouth Infection 'Yersinia ruckeri' Following Exposure to Copper. 1981
Susceptibility of the Convergent Lady Beetle ('Coleoptera: Coccinellidae') to Four Entomogenous Fungi. 1993
Susceptibility of woody plants to sulphur dioxide and photochemical oxidants : a literature review / 1976
Suspended and dissolved solids effects on freshwater biota : a review / 1977
Suspended particulate matter / 1979
Suspended particulate matter : a report to Congess / 1979
Suspended sediment in the Chesapeake and Delaware Canal / 1977
Swanson Reservoir, Hitchcock County, Nebraska. 1976
Symposium for discussion of the Los Angeles Catalyst Study : proceedings / 1977
Symposium on Bioremediation of Hazardous Wastes : research, development, and field evaluations : abstracts : Rye Town Hilton, Rye Brook, NY, August 8-10, 1995. 1995
Synoptic meteorology and air quality patterns in the St. Louis RAPS program / 1980
Synthesis and Biological Activity of Cyclopenta Epoxides of PAH (Polycyclic Aromatic Hydrocarbons) Containing Peripherally Fused Cyclopenta Rings. 1985
Tall Fescue Response and Soil Properties Following Soil Amendment with Tannery Wastes. 1984
Tall stacks and the atmospheric environment / 1976
Tampa Bay Area Photochemical Oxidant Study. Appendix C. Isoprene Emission Rates from Live Oak. 1978
Target Organ Toxicology of Halocarbons Commonly Found Contaminating Drinking Water. 1985
Tech IV credit model : estimates for emission factors and inspection and maintenance credits for 1981 and later vehicles for MOBILE3 / 1985
Technical and Economic Evaluation of NOx Control for Coal-Fired Cyclone Furnaces. 1976
Technical and microeconomic analysis of cadmium and its compounds : final report, task 1. 1975
PREV 1 ... 85 86 87 88 89 90 91 92 93 94 95 ... 101 NEXT

Save, Print or Email Selected Records