Browse Illinois Water Resources Center - Water Quality by Issue Date

  • Abercrombie, Frank N.; Caskey, Albert L. (University of Illinois at Urbana-Champaign. Water Resources Center, 1966-06)

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  • Small, Eugene B.; Antipa, Gregory A. (University of Illinois at Urbana-Champaign. Water Resources Center, 1967-09)
    Fifteen species of unionid bivalves from seventeen localities in Central Illinois were carefully examined for ciliate protozoan infections. Many ciliates appeared occasionally, but the thigmotrich ciliates Conchophthirus ...

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  • Mathis, B.J.; Cummings, T.F. (University of Illinois at Urbana-Champaign. Water Resources Center, 1970-06)
    This study was designed to assess the potential application for further research of metal contamination in a large mid-western river that is utilized by industries and certain cities as a source of potable water as well ...

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  • Holley, E.R.; Sollo, F.W. (University of Illinois at Urbana-Champaign. Water Resources Center, 1970-09)
    An extensive literature review is presented pointing out that the transport or diffusion of dissolved oxygen in the thin region or film immediately below the water surface is the most critical region in determining the ...

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  • VanAtta, Robert E. (University of Illinois at Urbana-Champaign. Water Resources Center, 1970-12)
    The objective of this project was the development and testing of a simple, portable, self-contained device suitable for in situ analysis of natural waters for certain trace metals. The trace metals which were of primary ...

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  • Moore, Charles A.; Silver, Marshall L. (University of Illinois at Urbana-Champaign. Water Resources Center, 1972-01)
    The report is divided into two parts. The first part contains the results of an extensive literature survey concerning the distribution of nutrients in waters and sediments and mechanisms for describing the mobility of ...

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  • Hiltibran, Robert C. (University of Illinois at Urbana-Champaign. Water Resources Center, 1972-02)
    In laboratory studies, an average of 1.5 ppm of diquat remained 65 days after the application of 5 ppm of diquat, and an average of 0.12 ppm remained 28 days after the introduction of 1 ppm of diquat. In fall field studies ...

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  • Caskey, Albert L. (University of Illinois at Urbana-Champaign. Water Resources Center, 1972-02)
    Determinations of trace impurities, pollutants, in water are often complicated by a large number of factors which consume a great deal of time. Thus, ideal reagents --- sensitive, specific, stable, water-soluble reagents ...

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  • Jones, Barclay G.; Meek, Charles C. (University of Illinois at Urbana-Champaign. Water Resources Center, 1972-09)
    This work was concerned with an improved and more practical understanding of particle motion in a turbulent fluid field. It is felt that such an increased understanding has been achieved both in an analytical and in an ...

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  • Cox, James A.; Lundquist, Gary L. (University of Illinois at Urbana-Champaign. Water Resources Center, 1972-11)
    The objective of this project was to develop a method for the determination of phosphate in natural water which would be an improvement over the presently accepted spectrophotometric technique in terms of detection limit ...

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  • Moore, Charles A.; Silver, Marshall L. (University of Illinois at Urbana-Champaign. Water Resources Center, 1973-01)
    This report presents the results of a series of laboratory tests to investigate phosphate transport in sediments subjected to one dimensional consolidation type loading. P-32 techniques are employed. The results indicate ...

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  • Larson, Thurston E.; Sollo, F.W., Jr.; McGurk, Florence F. (University of Illinois at Urbana-Champaign. Water Resources Center, 1973-06)
    The equilibrium or saturation pH for calcium carbonate is an important criteria in the treatment of our water supplies. In lime softened waters, particularly, which contain somewhat more magnesium than calcium on an ...

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  • McGinnes, Paul R.; Snoeyink, Vernon L. (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-03)
    The polynuclear aromatic hydrocarbons, or PAH, are of current concern as water pollutants and potential health hazards. The presence of PAH in natural water systems was evaluated and an analytical technique for specific ...

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  • Minear, Roger A.; Walanski, Kenneth A. (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-05)
    The ability of various laboratory algal cultures to generate substantial quantities of dissolved organic phosphorus (DOP) compounds has been demonstrated. After isolation and concentration of these compounds by low pressure ...

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  • Leland, Harry V.; Shimp, Neil F. (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-05)
    This report considers the distribution of selected trace metals in water, suspended matter and sediments of southern Lake Michigan and in surficial sediments of lower Green Bay. Accumulations of AS, Br, Cr, Cu, Hg, Pb and ...

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  • Murphy, Thomas J. (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-09)
    Precipitation in the Chicago area was analyzed and found to contain .034 mg/l. of phosphorus with about one half of this present as orthophosphate. Because of the small amounts of phosphorus needed to stimulate the growth ...

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  • Minear, Roger A.; Schneiderman, Steven (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-09)
    Originally, the application of commercially available monothiohexafluoroacetylacetone (HFAS) and its formation of volatile chelates with metals of environmental significance to rapid, multi-element analysis was under ...

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  • Katz, Philip L.; Schwab, Gary M. (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-11)
    Numerical simulations of several important episodes in the horizontal dispersion of a conservative substance in thermally-stratified (summer) Lake Michigan were performed. Lake-wide dispersion of chloride during the summer ...

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  • Katz, Philip L.; Schwab, Gary M. (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-11)
    Numerical simulations of several important episodes in the horizontal dispersion of a conservative substance in thermally-stratified (summer) Lake Michigan were performed. Lake-wide dispersion of chloride during the summer ...

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  • Jones, Barclay G.; Howard, Neil M.; Meek, Charles C.; Tomkins, James (University of Illinois at Urbana-Champaign. Water Resources Center, 1974-12)
    Understanding the basic mechanisms and predicting the behavior of particles suspended in turbulent fluid flow are essential to environmental conservation and to multiphase system design. Air and water pollution, sedimentation ...

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