Index Catalog // ScholarsArchive@OSU

An analysis of well water quality and local residents' perceptions of drinking water quality in the southern Willamette Valley

Creator:: Kite-Powell, Aaron C.
Abstract:: The purpose of this study was to; (1) determine the extent of well water contamination with nitrate and pesticides, and to understand the relationships among nitrate, pesticide, dissolved chloride, dissolved sulfate, well age, and well depth in the southern Willamette Valley, Oregon; and, (2) to investigate local residents' perceptions and...
Resource Type:: Masters Thesis
Full Text:: Environmental Quality (ODEQ) for the use of the well water data, and for the opportunity to work with you in

Evaluating microbial indicators of environmental condition in Oregon rivers

Creator:: Pennington, Alan Travis
Abstract:: Traditional public health bacterial indicators of water quality and the Biolog® system were evaluated to compare their response to other indicators of stream condition with the state of Oregon and between ecoregions (Coast Range, Willamette Valley, Cascades, and Eastern Oregon). Forty-three randomly selected Oregon rivers were sampled during the summer...
Resource Type:: Masters Thesis
Full Text:: standards (ODEQ, 1998). To address this problem, the United States Environmental Protection Agency was

Investigation of the presence and change over time of water quality parameters in selected natural swimming areas in Oregon

Creator:: Van Ess, Erica
Abstract:: Few studies, and none in Oregon, have examined the presence and change of water quality parameters over time in popular natural swimming areas. This information is necessary to better understand water quality and risk of illness from either fecal contamination or cross-infection from other swimmers. The purpose of this study...
Resource Type:: Masters Thesis
Full Text:: to the state 3 regulatory agency (Department of Environmental Quality) as they implement new

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Creator:: Campbell, Heidi M. K.
Abstract:: The Environmental Monitoring and Assessment Program (EMAP) site selection protocol was used to generate a random sample of streams throughout the state of Oregon. One hundred and forty-six selected streams were sampled during the summer, low-flow period of 1997. Traditional microbial public health indicators, including heterotrophic plate counts (HPC), total...
Resource Type:: Masters Thesis
Full Text:: ) developed by the U.S. Environmental Protection Agency (EPA) uses the sample survey technique to provide

Air pollution trends in Tehran, Iran, from 1988 to 1993

Creator:: Shirazi, Mehra A.
Abstract:: Physical geography and topography combined with increasing number of motor vehicles have lead to record breaking air pollution levels in Tehran, the capital city of Iran. The objectives of this study were: 1) to document trends in Tehran, Iran's ambient air quality levels between 1988 and 1993; 2) to compare...
Resource Type:: Masters Thesis
Full Text:: Environmental Protection Agency. Much of these data are not analyzed in a timely manner, therefore precluding

Analysis of Oregon's Domestic Well Testing Act data for use in a sentinel surveillance system for private well contaminants

Creator:: Hoppe, Brenda O.
Abstract:: The Safe Drinking Water Act ensures that public systems provide water that meets health standards. However, no such protection exists for millions of Americans who obtain water from private wells. Concern for safety is warranted as most wells draw from underground aquifers, and studies demonstrate that groundwater is affected by...
Resource Type:: Dissertation
Full Text:: health. In the United States, various federal regulations assist with the protection of water from

An evaluation of criteria proposed to reauthorize the cleanup of superfund sites : case studies from EPA's Region X

Creator:: Williamson, Gina Denise
Abstract:: The United States Congress is currently debating a bill to reauthorize the 1980 Superfund Hazardous Waste Cleanup Law. If this bill is not reauthorized by the end of 1995, the program will either continue in its present form or be eliminated altogether.' As currently administered, the Superfund program sets out...
Resource Type:: Masters Thesis
Full Text:: . Water Quality Standards - State-adopted and EPA-approved ambient standards for water bodies. The

Evaluation of bacterial community indicators of stream sanitary and ecological condition

Creator:: Bracken, Caragwen L.
Abstract:: The focus of this research was to develop bacterial community indicators of stream sanitary and ecological condition. The first study compared substrate utilization patterns between centrifuged and uncentrifuged split samples. We found a shift in the relative proportion of each group of bacteria following centrifugation, with a marked increased in...
Resource Type:: Dissertation
Full Text:: Environmental Protection Agency Office of Research and Development National Environmental Effects Laboratory

Factors influencing individual attitudes toward environmental health communications

Creator:: Lenz, Holly Hanson
Abstract:: The likelihood of achieving an effective environmental health communications program increases with a knowledge of the target audience's attitudes toward their environmental health concerns, source credibility, preferred channels of communication, and desire to participate in environmental issues. With this in mind, the purpose of this study was threefold: 1) to...
Resource Type:: Dissertation
Full Text:: Report noted that even when the Environmental Protection Agency (EPA) went beyond the minimum legal

Pollution prevention in Oregon's electronics industry

Creator:: Jones, Cynthia L.
Abstract:: Pollution prevention is promoted by the Environmental Protection Agency (EPA) and other governmental agencies as a method of reducing the generation of wastes and pollutants. Pollution prevention is also called source reduction because it reduces wastes early in the production process. Source reduction has been used by some industries to...
Resource Type:: Masters Thesis
Full Text:: into the environment" (Hirshhorn & Oldenburg, 1991, p.3). The Environmental Protection Agency

ScholarsArchive@OSU

An analysis of well water quality and local residents' perceptions of drinking water quality in the southern Willamette Valley

Evaluating microbial indicators of environmental condition in Oregon rivers

Investigation of the presence and change over time of water quality parameters in selected natural swimming areas in Oregon

Preliminary investigation of microbial indicators in the assessment of Oregon streams

Air pollution trends in Tehran, Iran, from 1988 to 1993

Analysis of Oregon's Domestic Well Testing Act data for use in a sentinel surveillance system for private well contaminants

An evaluation of criteria proposed to reauthorize the cleanup of superfund sites : case studies from EPA's Region X

Evaluation of bacterial community indicators of stream sanitary and ecological condition

Factors influencing individual attitudes toward environmental health communications

Pollution prevention in Oregon's electronics industry

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