Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 79 for “"Environmental contamination"”.
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Indigenous Resource Management and Environmental Contamination
Heavy metals are potential contaminants which can produce negative impacts on human health which vary from metal to metal, and are also dependent upon concentration and duration of exposure to the contaminant. This study lists the human health effects of 5 heavy metals; copper, arsenic, cadmium, …
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Military impact areas as a source of environmental contamination
… Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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The Role of Forensic Nurses in Communities Experiencing Environmental Contamination
… living in communities which have been exposed to environmental contamination, and to provide an understanding of how forensic nurses can be utilized in these communities. </p><p> Background</p><p> This study was conducted to provide an opportunity for forensic nurses to advance their profession by …
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Habitat overlap and seroprevalence of toxoplasma gondii in wildlife and feral cats in a natural area
… to the presence of feral cats as the source of environmental contamination. Although environmental contamination with oocysts of the parasite was not assessed, SHR mammals are good indicators of localized environmental contamination with oocysts at small spatial scales. Due to their greater …
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Rocky Flats: a case study of nuclear contamination, knowledge, and environmental justice
This thesis seeks to examine the environmental and public health experiences of individuals who live(d) near the Rocky Flats Nuclear Facility in Arvada, Colorado during and after its operation. The data presented for this thesis has been collected as part of MSU-CSU's Rocky Flats Health Study to …
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Shiga Toxin-Producing Escherichia coli: a Public Health Challenge in the Pre-Harvest Stage of the Farm-to-Table Continuum
… harmful STEC. Persistent carriers and environmental contamination may be responsible for maintenance of STEC in cattle farms. Prevalence may be further influenced by diet, distance to contaminated water-sources, wildlife contact, slurry application to pasture, and population density. …
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Exposure to Heavy Metals in American Robins: Impacts and Implications
… potential to serve as excellent bioindicators of environmental contamination in a variety of settings. We build on previous work to develop analytical techniques such as ICP-MS and XRF for use in wildlife studies, leveraging the availability of data on robins across regions. Bone and blood samples …
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Responses of respiratory system cells in vitro and in vivo to petrochemical combustion-derived ultrafine particles
Environmental contamination with airborne particles has been a human health concern for many years. Epidemiologic studies in urban communities have linked ambient particle exposure to various health effects, including chronic obstructive pulmonary disease, lung cancer, and several cardiovascular …
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Automatic Control of Chemical Application Rate With Soil Organic Matter and Travel Speed as Inputs (Microprocessor, Digital Control)
… of pesticides for proper pest control with less environmental contamination. A microprocessor based sprayer control system was developed to regulate chemical application rate according to the soil organic matter content and sprayer ground speed. Bypass nozzles were used to maintain uniform spray …
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Some aspects of mercury accumulation by the purple shore crab Hemigrapsus nudus Dana (Crustacea: decapoda)
… first groups of organisms to feel the stress of environmental contamination from an industrial source located on the open coast. This, coupled with its wide distribution, indicates its possible use as an environmental monitor.
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Tolerance and Accumulation of Copper, Lead and Zinc by Ceratopteris richardii
<p>Environmental contamination has increased rapidly in recent years. There is a need to develop cheap and environmentally friendly remediation methods. Numerous studies have evaluated the ability plants to remove contaminants from the environment. The present study evaluated the ability of …
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Soil PH and clay content associated with chronic wasting disease in white-tailed deer in northern Illinois
… increase the probability of transmission via environmental contamination. The model indicates CWD is likely to be present where: soil pH is greater than 6.6, percent clay is lower than 20%, cation exchange capacity (CEC) is lower than 15 meq/100g, and soil organic matter is less than 4.5%. …
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ENVIRONMENTAL CONTAMINANTS IN FARM AND WILD ANIMALS
Environmental pollution poses significant risks to both human and animal health, needing a "One Health" approach to understand the complex interactions between ecosystems, human, animals, and contaminants. This thesis focuses on the environmental contaminants, specifically per- and polyfluoroalkyl …
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An ergonomic job analysis of a work process within a glovebox
… materials and/or isolate the materials from environmental contamination. As the use of gloveboxes continues to grow in an effort to reduce contamination and the dependency of personal protective equipment as well as increase the level of safety through containment, technical design …
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Fast Identification of Components Commonly Used in Homemade Explosives by Spectroscopic and Chemometric Methods
… a reference in cases of HMEs, IEDs, arson and environmental contamination. </p> <p>Modern methods for quick identification of the fuels and oxidant sources used in manufacturing HMEs, include Fourier Transform Infrared (FT-IR) and Raman spectroscopy. Visual confirmation alone, however, is not …
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A Review of Alternatives to Injection of Petroleum Wastewater from Oil and Gas Extraction
… barrels of crude oil per day; the negative environmental impact and freshwater dearth can also be expected to progressively worsen as petroleum refinery wastewater increases to between 42.8 – 171.2 million barrels per day. While regulatory guidelines provide some mitigating effects to …
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Advanced computational techniques for pipe burst detection and localisation in water distribution networks
… loss of treated water, increase the risks of environmental contamination and are a health hazard for the end-user as they can create a passage for contaminants to enter water distribution networks (WDN). Identifying pipe burst locations will help water service providers repair pipe bursts in a …
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Effect of glove port height on upper body stress for performing laboratory work
… boxes are used in many industries to constrain environmental contamination and protect the worker from harmful or hazardous exposures. This research specifically evaluates the effect of height of the glove box arm ports on the efficiency of task performance and physiological costs of work for …
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Extraction and analysis of pharmaceutical residues in environmental samples using SPE with LC-MS/MS
… detailing the presence of PPCPs in a variety of environmental matrices and compartments have been published in the peer-reviewed literature. However, in Ireland very little research has been conducted to determine the level of environmental contamination due to the presence of drug residues. The …
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Frequency Response Modeling of Additive Friction Stir Deposition Parts with Print Defects
… friction stir deposition that arise through environmental contamination. More specifically, the use case considered is the printing of AA7075 in an iron oxide rich environment, where iron oxide dust or powder could accidentally be stirred into the printed material creating a print flaw. The …
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