WorldCat Identities

United States Environmental Protection Agency Office of Research and Monitoring

Overview
Works: 1,161 works in 1,945 publications in 1 language and 35,814 library holdings
Genres: Field guides  Conference papers and proceedings  Bibliography  Bibliographies  Catalogs 
Roles: Other
Classifications: QK142, 301.3
Publication Timeline
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Most widely held works about United States
 
Most widely held works by United States
Aquatic and wetland plants of southwestern United States by Donovan Stewart Correll( Book )

2 editions published in 1972 in English and held by 391 WorldCat member libraries worldwide

Proceedings ... National Symposium on Food Processing Wastes by National Symposium on Food Processing Wastes( )

in English and held by 318 WorldCat member libraries worldwide

A series of conferences to discuss current research on treatment of food processing wastes
Organic nutrient factors effecting algal growths by Nicholas L Clesceri( )

3 editions published in 1973 in English and held by 311 WorldCat member libraries worldwide

Nitrogen sources and cycling in natural waters by Patrick L Brezonik( )

5 editions published in 1973 in English and held by 300 WorldCat member libraries worldwide

Sources of nitrogen were reviewed to determine their significance in lacustrine budgets. Nutrients in rainfall were found significant although their variability obviates precise conclusions. Using literature values for nutrient export from various land uses, nutrient budgets were calculated for 55 Florida lakes. Critical N and P loading rates (above which eutrophication is likely) were estimated from the calculated budgets and lake trophic conditions. Algal fixation in two eutrophic Florida lakes was studied in detail; the total amount of N fixed and factors affecting the occurrence of fixation were evaluated. A survey of fixation in 55 Florida lakes showed significant fixation only in eutrophic lakes. Bacterial fixation in the anoxic hypolimnion of a small lake contributed substantial nitrogen to the lake, and N fixing activity was found in both estuarine and lacustrine sediments. The acetylene reduction assay for N fixation was evaluated; short incubations were found essential. Reduction was light-dependent and N2 acted as a competitive inhibitor. A preliminary experiment suggested that lacustrine sediments act as ammonia buffers; estuarine sediment sorbed ammonia strongly with little tendency to release ammonia to the water. Interferences from high organic color were evaluated for automated inorganic N and P analytical methods. Various amino acids were also shown to interfere with the indophenol ammonia procedure
Weed harvest and lake nutrient dynamics by Joe Kendall Neel( )

6 editions published in 1973 in English and Undetermined and held by 298 WorldCat member libraries worldwide

Environmental effects on toxaphene toxicity to selected fishes and crustaceans by Walter R Courtenay( )

3 editions published in 1973 in English and held by 274 WorldCat member libraries worldwide

Applications of growth and sorption algal assays by Gerard Fitzgerald( )

2 editions published in 1974 in English and held by 273 WorldCat member libraries worldwide

Evaluation of canal lining for salinity control in Grand Valley by Gaylord V Skogerboe( )

2 editions published in 1972 in English and held by 251 WorldCat member libraries worldwide

Environment: a bibliography of social science and related literature by Denton E Morrison( Book )

2 editions published in 1974 in English and held by 204 WorldCat member libraries worldwide

Assessing the water pollution potential of manufactured products by Joan Berkowitz( Book )

9 editions published in 1973 in English and held by 157 WorldCat member libraries worldwide

Energy conservation strategies by Marquis R Seidel( Book )

1 edition published in 1973 in English and held by 149 WorldCat member libraries worldwide

Biological impact of a large-scale desalination plant at Key West by Richard H Chesher( Book )

3 editions published in 1971 in English and held by 144 WorldCat member libraries worldwide

Interaction between marine organisms and oil pollution by Max Blumer( Book )

2 editions published in 1973 in English and held by 135 WorldCat member libraries worldwide

Ground water pollution in Arizona, California, Nevada & Utah by Dean K Fuhriman( Book )

2 editions published in 1972 in English and held by 132 WorldCat member libraries worldwide

An investigation to determine the ground water pollution problems which exist in the states of Arizona, California, Nevada, and Utah was conducted. Data were obtained through an extensive review of the literature and through interviews with engineers, scientists, and governmental officials concerned with water pollution in the four states of the project area. Mineralization of ground water is the most prevalent factor in the degradation of ground water quality in the project area. Large quantities of ground water in each of the four states are undesirable for many uses because of excessive mineralization. Much of the mineralization of ground water is a result of natural processes. A listing of conditions causing ground water pollution in the project area is included
Krypton 85; a review of the literature and analysis of radiation hazards by William P Kirk( Book )

3 editions published in 1972 in English and held by 132 WorldCat member libraries worldwide

Impairment of the flavor of fish by water pollutants by Dean L Shumway( Book )

5 editions published in 1973 in English and held by 130 WorldCat member libraries worldwide

Interaction of herbicides and soil microorganisms by Boyce Thompson Institute for Plant Research( Book )

4 editions published in 1971 in English and held by 129 WorldCat member libraries worldwide

The introduction of microorganisms with specific degradative capacities into the soil was shown to be a possible means of ridding the soil of contaminating chemicals. An investigation of the interactions of soil microorganisms and several groups of herbicidal compounds, primarily chlorinated derivatives, was made. In pure culture and in soils the addition of 2,3,5,6-tetrachloroterephthalate (DCPA) had little effect upon bacterial growth, and several microorganisms appeared to use the herbicide as a carbon source. The encouragement of the soil microflora by the addition of nutrient broths resulted in a reduction of toxicity to plants of a number of herbicides. Isopropyl N-phenylcarbamate (IPC) degrading organisms, when added to soil, accelerated the degradation of IPC and related compounds. A membrane 'biologicalilter' device for reducing waterborne biodegradable pollutants was also demonstrated using these organisms
Effects of temperature on growth and reproduction of aquatic snails by Henry van der Schalie( Book )

3 editions published in 1973 in English and held by 129 WorldCat member libraries worldwide

An in situ evaluation of nutrient effects in lakes by Robert A Jordan( Book )

3 editions published in 1973 in English and held by 128 WorldCat member libraries worldwide

The carbon dioxide system and eutrophication by Stephen D Morton( Book )

1 edition published in 1971 in English and held by 128 WorldCat member libraries worldwide

To determine the feasibility of eutrophication control by controlling carbon, three major areas were studied: the steady state, in which the growth rates of algae at various constant, maintained dissolved carbon dioxide concentrations were determined; the non-equilibrium, where natural atmospheric replenishment was the sole carbon source; and algal growth with inorganic bicarbonate as the sole carbon source. In studying growth rates of Chlorella, Microcystis, and Anabaena with respect to carbon availability, it was found that algae can utilize dissolved concentrations of carbon dioxide much lower than those from atmospheric equilibria
 
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