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 34 for “"Hazardous Substances"”.
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In pursuit of best practice : Benchmarking tools and processes for the management of hazardous substances in the workplace
… and practices in regard to the management of hazardous materials. This was chosen partly because chemical-induced injury and disease remain a significant problem for workers in industry (Winder, 1999b, p. 168) and partly because of its complexity and degree of difficulty. Data collection was …
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Cross-functional environmental initiatives : addressing Restriction of Hazardous Substance (RoHS) technical challenges at Sun Microsystems
The European Union (EU) passed the Restriction of Hazardous Substances (RoHS) Directive, effective January 2006, banning the sale of electronics equipment containing lead and five other hazardous substances into EU countries. The RoHS Directive is driving an accelerated transition to lead-free …
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Solidification and Stabilization of Contaminated Soil
… of soils contaminated with pollutants listed as Hazardous Substances under Resource Conservation and Recovery Act (RCRA). The site discussed in this paper was contaminated with Naphthalene, heavy metals and other VOCs. In order to find an effective remediation solution it was decided to explore …
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Effects of calcium, sulphur and potassium concentration in overburden on quality of strip mine drainage
… use on spoil surfaces. Knowledge of potentially hazardous substances in overburden should lead to more efficient revegetation procedures by surface mine operators.
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Evaluation of the Certus, Inc. and Lone Mountain Processing, Inc. Natural Resource Damage Assessment and Restoration Cases to Restore Mussels in the Clinch and Powell Rivers in Virginia and Tennessee
… susceptible to injury from exposure to hazardous substances due to their sessile nature and filter feeding biology. There have been various Natural Resource Damage Assessment and Restoration (NRDAR) cases in the United States involving injury to freshwater mussels due to releases of …
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Drop Impact Reliability Testing Lead-Free Chip Scale Packages
… Recently the European Union (EU) Restriction of Hazardous Substances (RoHS) and other countries' lead-free directives banned the use of lead in consumer electronics products. While this is a responsible environmental change for the electronics industry, it requires the introduction of new solders …
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OSHA laboratory safety standard 29 CFR 1910.1450 and achieving compliance in the microelectronic laboratory
… application of occupational exposures to hazardous substances in a microelectronics laboratory. The Occupational Safety and Health Administration (OSHA) standard for the safety in laboratories is (29 CFR 1910.1450). The application is a demonstration of the implementation of the standard …
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A critical and comparative analysis of the under regulation of underground storage tanks in South Africa and the attendant consequences for environmental resources
… at fuel retailer outlets and truck stops. These hazardous substances can contaminate nearby groundwater and soil causing a multitude of problems including the contamination and degradation of water and soil in the surrounding areas. Although these tanks constitute potentially devastating …
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Facility-Specific Radiation Exposure Risks and Their Implications for Radiation Workers at Department of Energy Laboratories
… evaluating the occupational risks of exposure to hazardous substances in any setting where As Low As Reasonably Achievable (ALARA) practices are mandated or used. The evaluation is performed by developing a hypothesis-test-based procedure for evaluating the homogeneity of various epidemiological …
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Health and well-being of workers at wastewater treatment plant in Muledane Thohoyandou Block J, Limpopo Province
… monitoring, and policies to reduce exposure to hazardous substances. Implementing these measures by the municipality and plant management is essential for the improvement of wastewater treatment plant employees.
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Plant-based admixtures for cement-based materials
… predominantly derived from petrochemicals and hazardous substances that pose environmental, occupational, and health risks during manufacture, use, and disposal. This study investigates environmentally friendly plant-based alternatives to conventional water reducers with the aim of developing a …
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A comparative study on liability issues concerning maritime transportation of dangerous goods: International and Chinese perspectives
… seaborne trade including import and export of hazardous substances. Furthermore, China is undergoing remarkable reform and transformation in all respects, and legal regimes, especially in the maritime field, are in a state of evolution. This thesis presents a two-fold area of concentration, …
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The World’s Leading Regulator: Why Countries Must Abide by the European Union’s Strict Chemical Laws and What that Means For its Closest Trading Partners
… chemical regulations are entitled Restriction of Hazardous Substances Directive (RoHS) and Registration, Evaluation, Authorization and Restriction of Chemicals, or REACH. These laws are imposed to ensure that the chemicals present in products are properly recorded and to ensure the health and …
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Policies to manage electronics waste : an analysis of US and EU regulatory initiatives
… their requirements. The US proposal relaxes the hazardous waste handling requirements for cathode ray tubes and mercury containing equipment, with the intent that more of them will be recycled. However, the rule does not contain any requirement that recycling occur, and the economic incentives to …
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Evaluation of the Mechanical Strength of Bund Walls under the Catastrophic Failure of Storage Tanks via Fluid Structure Interaction
… are structures used around storage tanks where hazardous substances are stored and handled for the purpose of retaining the losses in materials. This study investigates the performance of bund wall structures under the impact loading caused by the collapse of storage tanks. Research on this …
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Anti-aging potential of some freshwater microalgae extracts
… products for anti-aging are known to include hazardous substances associated with an elevated skin cancer risk. As a result, there is a need to look for natural alternative cosmetic items. Thus, this study aimed to assess the anti- aging potential of freshwater microalgal extracts. Freshwater …
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Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
Soil that is contaminated with heavy metals has become a major issue worldwide. However, proper remediation techniques such as stabilisation/solidification (S/S) method can be employed and is capable of controlling these heavy metals. Conventionally, the common S/S method used cement as binder on …
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Green manufacturing in the medical device industry : a case study
… reduce or eliminate the use or generation of hazardous substances. Green chemistry applies across the life cycle, including the design, manufacture, and use of a chemical product." ' Green chemistry is essentially a pollution prevention methodology, resulting in resource conservation, waste …
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Corporate environmental performance and its impact on financial performance and financial risk: Evidence from Australia
… first essay is entitled “Emission Indices for Hazardous Substances: An Alternative Measure of Corporate Environmental Performance”. This essay reviewed significant interdisciplinary research and concluded that firm chemical release/emission can be used as a proxy for a firm measure of …
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Analysis of water masses distribution and circulation in the White Sea, Russia
… dispersion and propagation of environmentally hazardous substances. The present investigation uses in-situ measurements of temperature and salinity gathered at high spatio-temporal resolution for the first time, as part of the INTAS project "Mesoscale physical and biogeochernical processes in …
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