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Filtering by: Subject Environmental impact analysis Remove constraint Subject: Environmental impact analysis Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Essays of Land Use Changes, Open Space, and Water Pollution

    Creator:
    Hagimoto, Toru
    Abstract:
    Land use is one of the leading factors that cause environmental degradation, such as water pollution, open space contraction and habitat loss. This dissertation consists of three essays. First paper investigates the relationship between land use and water pollution. Combining land use choice model and water pollution data, I simulate...
    Resource Type:
    Dissertation
    Full Text:
    Land use is one of the leading factors that cause environmental degradation, such as water pollution

  • Characterization, chemodynamics and environmental impact assessment of leachates from complex organic materials

    Creator:
    Aboul-Kassim, Tarek A. T.
    Abstract:
    More than 65,000 organic chemicals are currently in commercial production with approximately 1000 added each year. Many chemicals are released into the environment as organic mixtures derived from complex hazardous or solid wastes. Of these, more than 1000 chemicals are of environmental concern because of their production quantities, toxicity, persistence,...
    Resource Type:
    Dissertation

  • Polar organic compounds as tracers of environmental processes

    Creator:
    Medeiros, Patricia Matheus de
    Abstract:
    Sources of polar/water-soluble organic compounds conjunctly with apolar biomarkers were characterized in natural organic matter. This multi-biomarker approach was accomplished by a simple analytical method consisting of extraction with dichloromethane:methanol (2:1, v/v), silylation and analysis by gaschromatography- mass spectrometry (GC-MS). Polar and apolar biomarkers, derived mainly from higher plants and...
    Resource Type:
    Dissertation
    Full Text:
    for the degree of Doctor of Philosophy in Environmental Sciences presented on June 1, 2006. Title

  • Trans-Pacific and regional atmospheric transport of anthropogenic semivolatile organic compounds in the western U.S.

    Creator:
    Primbs, Toby
    Abstract:
    The atmospheric transport of anthropogenic semivolatile organic compounds (SOCs) from Asian sources to the Western U.S. was investigated. In addition, the SOC extraction method was optimized. Hansen solubility parameter plots were used to aid in the pressurized liquid extraction (PLE) solvent selection of air sampling media in order to minimize...
    Resource Type:
    Dissertation
    Full Text:
    Back Trajectories and Source Region Impact Factors…….…. 35 Meteorological and Source

  • Dynamics of organic matter production and degradation during coastal diatom blooms

    Creator:
    Wetz, Michael S.
    Abstract:
    Experiments were designed to answer key questions about diatom-derived organic matter cycling (i.e., production and degradation) in coastal systems. Dissolved organic matter (DOM) production was examined in axenic batch cultures of five diatom species. Dissolved organic carbon (DOC) release rates varied between species, but were significantly higher for all species...
    Resource Type:
    Dissertation
    Full Text:
    .......... 4 Chapter 3. Environmental Controls on Coastal Bacterioplankton