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  • 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:
    ) Piekarz, A.; Primbs, T.; Field, J. A.; Barofsky, D. F.; Simonich, S. Semi-volatile Fluorinated Organic

  • Tracking semi-volatile organic pollutants in remote lake systems

    Creator:
    Usenko, Sascha
    Abstract:
    SOCs volatility and persistence properties cause many SOCs to become ubiquitous in the environment as well as accumulate in areas with lower temperatures such as polar or orographic regions. Many anthropogenic SOCs pose a serious risk to human and ecosystem health because of their persistent, bioaccumulative, and toxic properties in...
    Resource Type:
    Dissertation
    Full Text:
    , 2007. Title: Tracking Semi-Volatile Organic Pollutants in Remote Lake Systems APPROVED : Dr

  • Understanding aroma impacts of four important volatile sulfur compounds in Oregon Pinot noir wines

    Creator:
    Tsai, I-Min
    Abstract:
    Sensory properties of four important volatile sulfur compounds, dimethyl disulfide (DMDS), diethyl disulfide (DEDS), methanethiol (MeSH) and ethanethiol (EtSH), were determined in base Oregon Pinot noir wine in order to understand their impacts on wine aroma. Detection thresholds of these four compounds in base wine were determined first. All four...
    Resource Type:
    Dissertation
    Full Text:
    Aroma Impacts of Four Important Volatile Sulfur Compounds in Oregon Pinot noir Wines. Abstract approved

  • Analysis of semi-volatile organic compounds in high elevation lake sediments

    Creator:
    Wang, Yunzhu
    Abstract:
    The transport and deposition of airborne contaminants, including semivolatile organic compounds (SOCs), to high elevation ecosystems is recognized as a potential threat to these ecosystems. The objectives of this research were to develop an analytical method to measure a wide range of SOCs in high elevation lake sediment and to...
    Resource Type:
    Masters Thesis
    Full Text:
    ............................................................................ 1 1.1 Semi-volatile organic compound deposition to high elevation ecosystem

  • Development of volatile compounds in Pinot noir grapes and their contributions to wine aroma

    Creator:
    Fang, Yu
    Abstract:
    It is often perceived that late maturity of grape gives a more complex aroma profile to Pinot noir wine, however, there is little understanding of the basic flavor chemistry of grape maturity on wine aroma. The aroma contributing compounds in Pinot noir were first identified by aroma extract dilution analysis...
    Resource Type:
    Dissertation
    Full Text:
    ) Table Eg 8.6 The means of sulfur volatile compound concentrations in Pinot noir wine by three vintage

  • Volatile composition of Pinot Noir grapes and wines under different viticultural practices in western Oregon

    Creator:
    Feng, Hui
    Abstract:
    High vegetative growth of Pinot Noir vine is a common problem in most vineyards of Oregon's Willamette Valley, where sunlight exposure and heat accumulation are limited. Consequently, growers in this region commonly use vineyard management strategies to regulate vine vigor and improve grape and wine quality. Wine quality is greatly...
    Resource Type:
    Dissertation
    Full Text:
    how specific viticultural practice affect Oregon Pinot Noir grape and wine volatile composition

  • 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:
    Oceanography presented on August 2, 2006. Title: Dynamics of Organic Matter Production and Degradation