Search Results for the EPA National Library Catalog

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Showing: Items 501 - 550
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Radionuclide analysis of environmental samples. 1959
Rainfall climatology of Hilo, Hawaii, 1972
Reconnaissance of ground water in Playas Valley, Hidalgo County, New Mexico. 1960
Reconnaissance of ground-water conditions in Curry County, New Mexico, 1955
Recovering plastics from urban refuse by electrodynamic techniques / 1972
Recovery of chromite and silica from steel foundry waste molding sands 1971
Recycling of sewage effluent by sugarcane irrigation : a dilution study, October 1976 to June 1977 : phase II-A 1977
Recycling of sewage effluent by sugarcane irrigation : a dilution study, October 1976 to October 1978 : 1980
Reduction and analysis data from the James River operation oyster spat 1953
Reefs and banks of the northwestern Gulf of Mexico : their geological, biological, and physical dynamics / 1983
Reference methods for marine radioactivity studies : sampling techniques and analytical procedures for the determination of selected radionuclides and their stable counterparts I : strontium, caesium, cerium, cobalt, zinc and others. 1970
Regional water supply report. 1974
Rehabilitation potentials and limitations of surface-mined land in the northern Great Plains 1974
Relative toxicities of selected chemicals to several species of tropical fish, by Jerry H. Nunogawa {and others. 1970
Removal of radium-226 from uranium mining effluents : final report of a joint government-industry program / 1983
Removal of saline water from aquifers, 1968
Requirements for biological substances. 6. General requirements for the sterility of biological substances Report of a study group. 1959
Research in psychopharmacology; report of a WHO Scientific Group. 1967
Research into environmental pollution : report of five WHO scientific groups. 1968
Research on droplet formation for application to kraft black liquors 1985
Research vessels of the National Marine Fisheries Service / 1971
Reservoirs and waterways : identification and assessment of environmental quality problems and research program development / 1978
Response of lake trout and rainbow trout to dietary cellulose / 1986
Results of a field study using the 3-axis Doppler shift current meter / 1971
Reuse of effluents: methods of wastewater treatment and health safeguards. Report of a WHO meeting of experts. 1973
Review and analysis of environmental impact assessment methodologies 1975
Review of heated discharge management and control alternatives : once-through systems in large water bodies 1975
Review of numerical reservoir hydrodynamics modeling : final report 1981
Review of our present knowledge of the dynamics and flushing of estuaries 1900
Review of recent literature on the toxicology of benzene. 1984
Review of the changes in the fish species composition of Lake Ontario. 1973
Review of the effects of water-level changes on reservoir fisheries and recommendations for improved management 1983
Review of treatment technology in the fruit and vegetable processing industry in Canada 1977
Safe use of pesticides in public health : sixteenth report 1967
Safe use of pesticides third report / 1979
Safe use of pesticides twentieth report / 1973
Screening for inborn errors of metabolism; 1968
Seepage study of a 15.3-mile section of the central Utah canal, Pahvent Valley, Millard County, Utah 1987
Seminar {on} fish processing plant effluent treatment and guidelines : held in Vancouver, B.C., Jan. 15-16, 1974, Moncton, N.B., April 24-25, 1974, St. John's, Newf., May 14-15, 1974 1975
Services for the prevention and treatment of dependence on alcohol and other drugs. 1967
Settlement of international environmental disputes : a series of lectures delivered at the Hague Academy of International Law, Summer 1975. 1976
Sewage chlorination and bacterial regrowth 1980
Small battery-operated hydrophotometer 1961
Small portable salinometer. 1961
Smallpox eradication; report of a WHO scientific group. 1968
Soil parameters and sampling scheme for characterizing soil hydraulic properties of a watershed 1982
Solid wastes disposal and control. Report of a WHO expert committee. 1971
Some measurements of the tritium content in the natural waters of southern Oahu, Hawaii, 1969
Some results of studies on the uptake of radioactive waste materials by marine and estuarine phytoplankton organisms using continuous culture techniques 1960
Some statistical analyses of Hawaiian rainfall 1973
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