Search Results for the EPA National Library Catalog

Items Found: 2038
Showing: Items 1101 - 1150
Your Search: (SUBJECT=Oxygen)


 
 
 
PREV 1 ... 18 19 20 21 22 23 24 25 26 27 28 ... 41 NEXT
Select Item Title Year Published
Nitrification and Denitrification of Waste Water. 1971
Nitrification in Surface Waters Tributary to Lake Superior. 1971
Nitrogen and phosphorus control by two facilities in Florida / 1979
Nitrogen removal from municipal wastewater 1973
Nitrogenous compounds in the environment. 0
Nitrox manual : complete guide to Nitrox diving : (N2/O2) : oxygen enriched air/denitrogenated air (feet and meters) / 1996
Non-Point Source Studies on Chesapeake Bay. III. Relationship between Bacterial Contamination and Land Use in the Rhode River Watershed, and Survival Studies of 'Streptococcus faecalis' in the Estuary. 1977
Non-point water quality modeling in wildland management : a state-of-the-art assessment / 1977
Nonpoint Source Sampling Design Report. Areawide Waste Treatment Management Plan for the Greater Houston Area. 1977
Nonpoint Sources: An Assessment of Pollutant Loadings to Lakes and Rivers in North Central Texas. 1977
Notification of a consultation on national saltwater dissolved oxygen criteria / 1994
Numerical and graphical procedures for estimation of community photosynthesis and respiration in experimental streams / 1982
Numerical and graphical procedures for estimation of community photosynthesis and respiration in experimental streams {microform} / 1982
Numerical Model for the Prediction of Transient Water Quality in Estuary Networks. 1972
Numerical Simulation of Aerated Sludge Composting. 1980
Nutrient and dissolved oxygen dynamics of a short detention time Texas reservoir 1976
Nutrient chemistry of a large, deep lake in subarctic Alaska / 1978
Nutrient control by plant modification at El Lago, Texas / 1976
Nutrient Enrichment of Chesapeake Bay and Its Impact on the Habitat of Striped Bass: A Speculative Hypothesis. 1985
Nutrient overloading : a national water quality issue as reported by the Nation's Estuary Programs. 1997
Nutrient Removal from Enriched Waste Effluent by the Hydroponic Culture of Cool Season Grasses. 1969
Nutrient transport and dissolved oxygen budget studies in the Potomac Estuary / 1972
Nutrient Transport and Dissolved Oxygen Budget Studies in the Potomac Estuary. 1972
Nutrient-Dissolved Oxygen Dynamics in Chesapeake Bay: The Roles of Phytoplankton and Micro-Heterotrophs under Summer Conditions, 1985. 1987
Nutrients and phytoplankton in Puget Sound 1991
Nutritional Ecology and Community Structure of the Phytoplankton of Green Bay. 1971
Observations on the Effect of Dissolved Oxygen and Temperature on Respiration Rates of the Bay Scallop, 'Argopecten irradians'. 1992
Oceanographic Observations in the Georgia Bight: Data Report for R. V. EASTWARD Cruises E-13-73 (4-11 September) and E-19-73 (8-9 December 1973). 1975
Ohio Basin Region. Summary Statement. Position on Thermal Pollution within the Ohio River Basin. 1968
On the Formation of Peroxide Compounds in the Low-Boiling Fractions of Estonian Shale Tar (Ob Obrazovanii Perekisnykh Soedinenii v Nizkokipyaschikh Fraktsiyakh Estonskoi Slantsevoi). 1972
On the Question of Determining Oxygen and Carbon Dioxide in the Air (K Voprosu ob Opredelenii Kisloroda i Uglekislogo Gaza v Vozdukhe). 1974
Open Lake Water Quality Conditions for Lake Erie's Central and Eastern Basins, 1985. 1987
Operating Capacity of GAC Adsorbers: Dissolved Oxygen and Extended Service Life. 1994
Operating Experience and Design Criteria for UNOX Wastewater Treatment Systems. Prepared for Environmental Protection Agency Technology Transfer Program Design Seminar for Wastewater Treatment Facilities, February 29-March 1, 1972, New York. 1972
Operational control procedures for the activated sludge process / 1973
Optimum Production of Atomic Oxygen for Use in Analytical Technology. 1973
Ordination of Aquatic Nematode Communities as Affected by Stream Water Quality. 1979
Organic Analyses in Water Quality Control Programs - Training Manual. 1980
Organic Analyses in Water Quality Control Programs. Training Manual. 1977
Organic Analyses in Water Quality Control Programs; Instructor's Guide for Conducting the Course. 1980
Organic Analyses in Water Quality Control Programs; Training Manual. 1978
Organic Carbon - A Nonspecific Water Quality Indicator for Lake Superior. 1978
Organic Loading Study of Full-Scale Sequencing Batch Reactors. 1985
ORNL Isotopic Power Fuels Quarterly Report for Period Ending March 31, 1971. 1971
Overland flow : a decade of progress / 1984
Overland flow treatment of raw wastewater with enhanced phosphorus removal / 1976
Overview of the United States Effluent Guidelines Program. 1991
Overview of USEPA/Clear Lake Erie Sediment Oxygen Demand Investigations during 1979. 1987
Oxidases and related redox systems proceedings of the Third International Symposium on Oxidases and Related Redox Systems, held in the State University of New York at Albany, USA / 1982
Oxidation of halocarbons / 1975
PREV 1 ... 18 19 20 21 22 23 24 25 26 27 28 ... 41 NEXT

Save, Print or Email Selected Records