Search Results for the EPA National Library Catalog

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Toxicity reduction through chemical and biological modification of spent pulp bleaching liquors / 1980
Toxicity Test Using Life Stages of 'Champia parvula' (Rhodophyta). 1983
Toxicity to the Green Alga, Selenastrunm capricornutum. 2007
Toxins and biologically active compounds from microalgae / 2014
Toxins from blue-green algae : toxicological assessment of anatoxin-a and a method for its determination in reservoir water / 1994
Trace Materials in Wastes Disposed to Coastal Waters: Fates, Mechanisms and Ecological Guidance and Control. 1970
Traditional management of seaweeds in the district of Leon 1984
Treatability Studies of Pesticide Manufacturing Wastewaters: Ethylenebisdithiocarbamate Fungicides. 1980
Treatment of Lake Charles East, Indiana sediments with fly ash / 1979
Trophic classification of lakes using LANDSAT-1 (ERTS-1) multispectral scanner data / 1976
Trophic State of Lakes and Reservoirs. 1980
Upgrading lagoons / 1973
Upgrading wastewater stabilization ponds to meet new discharge standards : proceedings of a symposium held at Utah State University, Logan, Utah, August 21-23, 1974 / 1974
Uptake of Metals from Chromated-Copper-Arsenate (CCA)-Treated Lumber by Epibiota. 1993
Use of 'Selenastrum capricornutum' to Assess the Toxicity Potential of Surface and Ground Water Contamination Caused by Chromium Waste. 1988
Use of Amphotericin B for Differentiating Eukaryotic from Prokaryotic Activity in Mixed Microbial Samples. 1987
Use of Periphyton in the Development of Biocriteria. 1994
Use of Remote Sensing to Map the Areal Distribution of 'Cladophora glomerata' at a Site in Lake Huron. 1982
Use of the Protococcaceae for Purifying Waste Water (Primenenie Protokokkovykh Vodorosley dlya Ochiski Stochnykh Vod). 1971
Use of Vegetable Cultures as the Photosynthetic Component of Isolated Ecological Cycles for Space Travel. 1960
User's Manual for the Dynamic (Delaware) Estuary Model. 1980
User's manual for the dynamic (Potomac) estuary model / 1979
Using Biopolymers to Remove Heavy Metals from Soil and Water. 1993
Utilization of natural ecosystems for wastewater renovation / 1979
Utilization of phosphorus by phytoplankton in phosphorus-rich environments, 1974
Utilization of Phosphorus by Phytoplankton in Phosphorus-Rich Environments. 1974
Variability of 'Stephanodiscus hantzschii Grun' (Ueber die Variabilitaet von 'Stephanodiscus hantzschii Grun'). 1974
Variable Selectivity and the Role of Nutritional Quality in Food Selection by a Planktonic Rotifer. 1990
Verdigris River Investigation. An Investigation of the Pollution of that Reach of the Verdigris River Between Neodesha, Kansas, and Nowata, Oklahoma. 1949
Vodorosli planktona Kaspiiskogo moria 1968
Volatile Halocarbon Production from the Chlorination of Marine Algal Byproducts, Including D-Mannitol. 1980
Volunteer lake monitoring : a methods manual. 1991
Volunteer Lake Monitoring Program, 1984. Volume 2. Northwestern Illinois Region. 1985
Volunteer Lake Monitoring Program, 1984. Volume 5. East-Central Illinois Region. 1985
Volunteer Lake Monitoring Program, 1984. Volume 6. Southwestern Illinois Region. 1985
Volunteer Lake Monitoring Program, 1984. Volume 7. Southern Illinois Region. 1985
Volunteer Lake Monitoring Program, 1986. Volume 3. Northwestern Illinois Region. 1987
Volunteer Lake Monitoring Program, 1988. Volume 3. Northeastern Illinois Region. 1989
Volunteer Lake Monitoring Program, 1989. Volume 2. Northwestern Illinois Region. 1990
Volunteer Lake Monitoring Program, 1989. Volume 3. Northeastern Illinois Region. 1990
Volunteer Lake Monitoring Program, 1989. Volume 4. West-Central Illinois Region. 1990
Volunteer Lake Monitoring Program, 1989. Volume 5. East-Central Illinois Region. 1990
Volunteer Lake Monitoring Program, 1992. Volume 2: Northwestern Illinois Region. 1993
Volunteer Lake Monitoring Program, 1992. Volume 4. West Central Illinois Region. 1993
Volvox : molecular-genetic origins of multicellularity and cellular differentiation / 1998
WASP7 Benthic Algae - Model Theory and User's Guide. Supplement to Water Quality Analysis Simulation Program (WASP) User Documentation. 2006
Wastewater stabilization lagoon : intermittent sand filter systems / 1980
Wastewater technology fact sheet / Facultative lagoons. 2002
Wastewater treatment ponds : supplement to federal guidelines : design, operation, and maintenance of wastewater treatment facilities. 1974
Wastewater treatment ponds. 1975
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