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Retention of zinc-65 by Columbia River sedimentJohnson, Vernon Gene 10 December 1965 (has links)
Graduation date: 1966
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Radioactivity of sediments in the Columbia River estuaryJennings, Charles David 11 January 1966 (has links)
Graduation date: 1966
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Pollution prevention strategies used by Oregon hospitalsPatel, Neha T. 24 September 2002 (has links)
Waste generated by the health care industry has been cited as a major
source of toxic pollution, including mercury and dioxins, which poses a serious
threat to public health. The purpose of this study was to investigate pollution
prevention activities of health care facilities in Oregon related to environmentally preferable
purchasing practices, recycling, mercury reduction efforts, and written
policy. Surveys were sent to 57 hospitals in Oregon, 24 facilities responded
(42.1 %).
Results indicate that the following environmentally-preferable purchasing
practices are being implemented: purchasing reduced hazardous material (92%);
using recycled packaging (75%); and, using products made from recycled content
material (83%). Other practices, such as the purchasing of cadmium-free red bags
(25%), supplies shipped in reusable shipping containers (34%), and using minimal
packaging (46%) are being implemented in a few hospitals. None of the hospitals
are purchasing chlorine-free office paper.
The majority of participating Oregon hospitals are recycling paper (96%),
cardboard (96%), clear glass (67%), linens (87.5%), batteries (67%) and X-ray film
(83%). Fewer hospitals are recycling plastics: #1 PET and #6 polystyrene
(37.5%), #2 HDPE (42%), #5 polypropylene (33%). Fewer hospitals are also
composting food (46%), computers and equipment (42%), fluorescent lamps (21%)
and solvents/fixers (29%). Major barriers to recycling in hospitals include lack of
established markets for some materials, limited space to collect the materials, and
low employee participation.
The majority of participating hospitals are reducing the purchasing of
mercury containing products, replacing mercury blood pressure units and gauges,
replacing lab and housekeeping chemicals, and pharmaceuticals. Fewer than 50%
of then participating hospitals are replacing switches, recycling batteries and
conducting an inventory of mercury sources. Few hospitals are checking drains
and pipes for mercury contamination (13%), recycling fluorescent lamps (21%) and
requiring vendors to disclose mercury content below 1% (17%). While most
hospitals no longer purchase new mercury-containing devices, the cost associated
with disposal of mercury as a hazardous waste is a major barrier to elimination.
Hospitals located in urban areas in Oregon are more likely to implement
pollution prevention strategies than rural hospitals. Nearly all Oregon hospitals
lack a corporate policy on pollution prevention/source reduction, or written goals
on waste volume reduction or waste toxicity reduction efforts. The few hospitals
(8%) that have put policies in place have done so voluntarily, and with the full
support from upper-level management.
Based on theses findings recommendations include the following:
1) Establish a "Green Team" of hospital staff from diverse departments. This
group can then strategize about courses of action for the facility with input
from all responsible sectors.
2) Conduct a waste audit. This establishes a baseline of existing hospital waste
and will help determine how to shape a waste minimization program and
pollution prevention plan.
3) Pollution prevention education should be a top priority for all departments
within each hospital including purchasing, nursing, housekeeping and top
management. Many health care professionals are not aware of the link
between the products and practices they choose and the environmental consequences of these choices.
4) Rural hospitals can join pollution prevention email list serves such as the
Oregon Health Care Without Harm list (HCWHoregon-health.org) or the
H2E list serve (www.h2e-online.org) to share, learn and identify practical
strategies for pollution prevention and waste minimization.
5) Approach and involve upper level management to work with hospital
"green teams" to develop and implement a hospital policy on pollution
prevention. / Graduation date: 2003
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Implementing a radiation monitoring program at a solid waste landfillCrail, Scott Allen 03 May 1999 (has links)
More and more, modern society is incorporating the use of radioactive materials into everyday uses. And with society using more radioactive materials, the odds of it being accidentally disposed of into the solid waste stream increases.
There are several radiation systems available which market themselves as being complete and "ready to go". While it is true that a person could purchase one of these systems and would have coverage of the landfill, such a system does not provide the necessary education, response and liability protection programs. Indeed, it would be feasible to foresee a scenario where installing a systems could lead to an increase in liability and employee problems.
As a result, Coffin Butte Landfill worked with the author to establish a complete radiation monitoring program. This program encompasses everything from installment of the system to employee education and training. It also examined the myriad and murky depths of federal and state regulation dealing with solid and radioactive waste to help the landfill set an acceptance policy and minimize liability. This led the author to the belief that the combination of federal and state
regulations imply a requirement for landfills to have a working radiation monitoring program.
Future government action remains uncertain as pertaining to a requirement for landfills to maintain a radiation monitoring system. Indeed, current state regulations are out of sync with federal regulations regarding acceptable public exposures. It is hoped that, with this study's help, Coffin Butte Landfill and Oregon State University will continue with the established relationship and be prepared to respond to regulation changes. / Graduation date: 1999
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Application of the gamma pathway exemption rule for naturally occurring radioactive materials in industrial waste using ISOSHLD-IIBahmaid, Mohammad A. 05 June 1995 (has links)
Graduation date: 1996
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A feasibility study of applying ISO 14000 to wastewater management in Hong KongLeung, Kar-yee. January 2001 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 75-79).
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An engineered ecosystem for environmentally sustainable wastewater treatment for remote tourist resorts in tropical/sub-tropical regions /Kavanagh, Lydia Jane. January 2003 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2003. / Includes bibliographical references.
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Recycling municipal solid waste : problems and prospect /Chan, Lai-ying. January 2001 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2002. / Includes bibliographical references (leaves 162-174).
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Influences and motivations on curbside recycling participation /Davio, Rebecca Lynn, January 2001 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2001. / Vita. Includes bibliographical references (leaves 117-121). Available also in a digital version from Dissertation Abstracts.
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Hydraulic fracturing and federalism : how regional needs should drive regulatory oversight, with Texas as case studyMoorhead, Scott Adams 19 July 2012 (has links)
Hydraulic fracturing of shale has combined traditional oil and gas industry techniques to create significant new reserves in the United States. Poor science, incomplete media coverage and politicization of the issues threaten broad understanding of issues of genuine concern while overstating others. The Environmental Protection Agency should focus on science-based regulation prior to enumerating new rules and should continue to cede primacy to the states where traditional regimes have proven successful in regulating oil and gas. The most critical issues associated with hydraulic fracturing tend to be regional and predicated on local hydrogeology. Surface water disposal and emissions standards need revision and strengthening. Scarce resources should be dedicated to better understanding regional water availability and to heightened awareness of the energy-water nexus. / text
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