Index Catalog // ScholarsArchive@OSU

Creator:: Heggen, Richard J.
Abstract:: Two strategic approaches to water quality control in Oregon's Willamette River are presently being utilized: point source treatment and flow augmentation. Dry weather releases from reservoirs are for authorized purposes other than water quality. Reservoirs can participate in pollution control by summer flow augmentation where authorized water resource objectives (flood...
Resource Type:: Dissertation
Full Text:: . Williamson Two strategic approaches to water quality control in Oregon's Willamette River are presently

Creator:: Brar, Jagjit Singh
Abstract:: Open field burning is the lowest-cost method of harvest residue disposal used extensively by grass seed producers in the Willamette Valley of Oregon. The beneficial effects of open field burning include effective disease control and increased seed yields. However, smoke produced by open burning in the late summer pollutes valley...
Resource Type:: Dissertation
Full Text:: POLLUTION CONTROL POLICIES AFFECTING OPEN FIELD BURNING IN THE WILLAMETTE VALLEY OF OREGON: A STUDY IN

Creator:: Marshall, Sarah M.
Abstract:: Hydrologic processes within mineral flat wetlands, along with their connections to groundwater and downstream surface water in lowland agricultural catchments are poorly understood, particularly under different land uses. In the three field studies included in this thesis, we examined infiltration, wetland hydroperiod, groundwater recharge dynamics, surface runoff generation, and water...
Resource Type:: Dissertation
Full Text:: Willamette River lowlands, Oregon………………………………………………………… 3.2 2009-2010 and 2010-2011 water table

Creator:: Sower, Gregory J.
Abstract:: Urban rivers with a history of industrial use can exhibit spatial and temporal variations in contaminant concentrations that may significantly affect risk evaluations and assessment of remediation efforts. To more effectively estimate human and ecological health risks, we evaluated the spatial and temporal distribution of polycyclic aromatic hydrocarbons (PAHs) in...
Resource Type:: Dissertation
Full Text:: remediation assessment (1). The Willamette River in Portland, Oregon, like many urban rivers, has been the

Creator:: Sethajintanin, Doolalai
Abstract:: The seasonal distribution of bioavailable organochiorine contaminants in surface water and the potential environmental factors influencing their bioavailability were evaluated. The study was carried at the lower Willamette River at Portland Harbor, Oregon where surface water runoff varied according to season. Bioavailable water concentrations of DDTs and PCBs were determined...
Resource Type:: Dissertation
Full Text:: bioavailability were evaluated. The study was carried at the lower Willamette River at Portland Harbor, Oregon

Creator:: Krissanakriangkrai, Oraphin
Abstract:: In this study the impact of episodic events on levels of bioavailable trace metals Zn, Cu, Cr, Cd, Pb, and As (III) were determined for the lower Willamette River in Oregon. In addition, a comparison among three alternative methods for estuary sampling was conducted. Potential adverse human health risk associated...
Resource Type:: Dissertation
Full Text:: Willamette River, Oregon Abstract approved: Cathy M. Neumann In this study the impact of episodic events on

Creator:: Tidwell, Lane G.
Abstract:: Passive sampling devices (PSDs) were used to measure air vapor and water dissolved phase concentrations of polycyclic aromatic hydrocarbons (PAHs) and oxygenated PAHs (OPAHs) at two different environmentally contaminated sites. Environmental contaminates like PAHs and OPAHs are present in both the atmospheric and aqueous environmental compartments. It is known that...
Resource Type:: Dissertation
Full Text:: concentrations and flux rate in Gulf of Mexico......31 Figure 3.1 Sampling locations on the Willamette River

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