Search Results for the EPA National Library Catalog

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Select Item Title Year Published
Short-term methods for estimating the chronic toxicity of effluents and receiving water to marine and estuarine organisms / 1994
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms / 1985
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms / 1994
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms / 1989
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms. 2002
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to freshwater organisms. Supplement / 1989
Short-term methods for estimating the chronic toxicity of effluents and receiving waters to marine and estuarine organisms / 1988
Significance of Cellulose Production by Planktonic Algae in Lacustrine Environments. 1972
Silt removal from a lake bottom / 1975
Simplified Feeding Techniques for Culturing and Toxicity Testing with 'Ceriodaphnia'. 1988
Some ecological relationships of cyanophycean waterblooms 1962
Sorption and Toxicity of Azo and Triphenylmethane Dyes to Aquatic Microbial Populations. 1985
Sorption equilibria for trichloroethene on algae 1990
Source assessment : textile plant wastewater toxics study, phase II / 1979
Sources and sinks of nitrogen and phosphorus : water quality management of Lake George (N.Y.) / 1972
Sources of Urban Runoff Pollution and Its Effects on a Urban Creek. 1982
Southeast Alaska's rocky shores : seaweeds and lichens / 1996
Statement on Water Pollution in the Lake Ontario Basin. 1966
Stochastic Model for the James. 1973
Stormwater management to improve lake water quality {microform} / 1982
Strategies for controlling and mitigating algal growth within water treatment plants / 2009
Stream Pollution in the 'New Lead Belt' of S. E. Missouri. 1970
Structure and Function of Copper-Stressed Aquatic Microcosms. 1984
Structure and reproduction of the algae 1935
Studies in phycology. 1969
Studies of circulation and primary production in deep inlet environments / 1977
Studies of the phytoplankton and soil algae of two strip-mine impoundments of Tuscarawas County, Ohio. 1973
Studies on Algae from Eutrophic and Oligotrophic Waters and Their Use in the Bio-Assay of Water Quality. 1970
Studies on lake restoration by phosphorus inactivation / 1976
Studies on the chemistry of orthophosphate and polyphosphate removal with ferric chloride : a preliminary report / 1967
Studies on the natural relationships of cyanophages and their hosts and the nature of resistance : final technical completion report / 1977
Studies on the reclamation of Stone Lake, Michigan / 1976
Study of Phosphate Induced Algal Growth in Order to Suppress or Eliminate this Phenomenon. 1972
Study of phytoplankton dynamics in Lake Fayetteville as a means of assessing water quality 1971
Study of Phytoplankton Dynamics in Lake Fayetteville as a Means of Assessing Water Quality. 1971
Study of the Eutrophication of the Surface Waters of Pyramid Lake. 1973
Study of the Physical, Chemical and Biological Nature of Water Quality Under Utah Conditions. 1971
Study of the Use of Biomass Systems in Water Renovation. 1967
Study of Water-Soluble Inhibitory Compounds (Algicides) Produced by Fresh-Water Algae. 1973
Submerged aquatic vegetation in Upper Chesapeake Bay : studies related to possible causes of the recent decline in abundance / 1984
Suggested Approach for Developing Estuarine Water Quality Criteria for Management of Eutrophication. 1981
Summary and conclusions from the forthcoming Technical report 56 : "Nutrient enrichment and control requirements in the upper Chesapeake Bay" / 1973
Supplemental report for the red algal sexual reproduction test : training videotape / 1990
Support: Amended Final Report, Static Acute Toxicity of 5% Peracetic Acid (Vigor Ox) to Daphnia Magna, with Cover Letter dated 07/30/1996. Acetylfuran, dated 06/24/1996. 1996
Support: Letter from Attys for Arziona Chem Co. to USEPA Submitting Studies Pursuant to TSCA Compliance Audit Agreement, with Attachments (17 Study Reports) and Dated 11/02/1999. 2001
Support: Letter from BASF Corp. to USEPA reporting Preliminary Results of Ecotoxicity Studies with BAS 090 00 S in Green Algae and Daphnia Magna, dated 08/24/1998. 1998
Support: Letter from Cytec Industries Inc to USEPA Regarding Aquatic Toxicity Studies of CT-648-98, with Attachments (3 Final Study Reports) and Dated 07/02/1999. 1999
Survey for 'Cylindrospermosis Raciborskii'. 2004
Survey of laboratory studies relating to the sorption/desorption of contaminants on selected well casing materials / 1992
Survey of macrophyte resources in the coastal waters of Alaska : report of progress during first year to the Sea Grant Program / 1971
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