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 23 for “"mercury emissions"”.
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Mercury emissions from crematoria
… pilot study indicated that concentrations of mercury in crematoria soils might be significantly higher than controls. The source of the contamination has been assumed to be dental amalgam from cremated cadavers. Amalgam fillings contain 50% mercury, which under cremation conditions is totally …
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Mercury Emissions from Polyurethane Flooring in Gymnasiums
… flooring in indoor gymnasiums that contained mercury which was used as a catalyst in the polyurethane formulation. Many of these floors now have been found to be releasing mercury vapors into the school gymnasiums, leading to a concern that these mercury concentrations might be elevated enough …
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Mercury emissions inventories in the Lake Superior states
Mercury pollution can cause harmful impacts on human health and the environment, a concern that is magnified in marine environments like the Great Lakes. While there are many local, national, and global efforts to track emissions, one key complication to accurately estimating atmospheric mercury is …
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Assessing the role of top-down techniques for improving regional estimates of artisanal and small-scale gold mining mercury emissions
… the world’s largest source of anthropogenic Hg emissions and is common in Latin America, Sub-Saharan Africa, South Asia, and East Asia. However, the amount of mercury emitted from ASGM and contributing to global mercury emissions is subject to substantial uncertainty. Bottom-up studies have …
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Rise of mercury emissions in the Amazon rainforest: an evaluation of artisanal and small-scale gold mining and biomass burning sources
<p>Two important global sources of mercury emissions to the atmosphere are biomass burning (BMB) and artisanal and small-scale gold mining (ASGM) operations. These activities, prevalent in the Amazon rainforest, are driven by agricultural and cattle ranching expansion and rising international gold …
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The Association between Mercury Emissions and Individuals with Autism Aged from 3-21 in the State of California from 2001 to 2007
<p>The paper explores how historical mercury deposition associates with the incidents of autism, identified in individuals aged from 3 to 21 in California from 2001 to 2007. The association between mercury deposits and the prevalence of individuals with autism aged from 3 to 21 in California was …
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Regulating mercury with the Clear Skies Act : the resulting impacts on innovation, human health, and the global community
… Act Amendments require the U.S. EPA to control mercury emission outputs from coal-burning power plants through implementation of MACT, Maximum Achievable Control Technology, standards. However, in 2003 the Bush Administration revealed an alternative and controversial regulatory strategy for …
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Elemental and reactive gaseous mercury deposition and diurnal cycles over terrestrial environments
… component of the global biogeochemical mercury cycle was studied to determine the mechanisms behind diurnal trends and amplitudes in elemental and reactive gaseous mercury concentrations over terrestrial environments. This analysis was done using the 3D GEOS-Chem chemical transport model …
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Investigation of the Relationship Between Particulate Bound Mercury and Properties of Fly Ash in a Full-Scale 100 MWE Pulverized Coal Combustion Boiler
There is an increasing concern over mercury emissions from coal-fired boilers. Coal-fired power generation accounts for approximately 33% of total mercury emission in the United States. Once it is emitted into the atmosphere and deposited on land or water, mercury can transform into methylmercury, …
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Translating international commitments to domestic action : Mercury co-benefits, sustainable development, and climate policy in China
… objectives, such as the Minamata Convention on Mercury and the global Sustainable Development Goals. Understanding the interactions between climate change, air pollution, and sustainable development can help decision-makers identify more effective policies that can address environmental and …
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Evaluating The Effectiveness Of Proprietary Additives In Improving Capture And Sequestration Of Oxidized Mercury In Scrubber Systems
<p>Mercury released during thermal processing (induration) of beneficiated taconite ore (referred to as green balls) can be captured by scrubber waters if it is in an oxidized form. Consequently, mercury emissions from Taconite facilities can be reduced by oxidation of the mercury released from the …
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Environmental Justice Impacts and Sustainable Solutions
… focuses on the calculation of industrial emissions and their impacts on the environment, as well as, the implementation of sustainability measures in the workplace to reduce environmental impacts. Understanding and reducing these impacts is critical as the effects of climate change become …
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Environmental Justice Impacts and Sustainable Solutions
… focuses on the calculation of industrial emissions and their impacts on the environment, as well as, the implementation of sustainability measures in the workplace to reduce environmental impacts. Understanding and reducing these impacts is critical as the effects of climate change become …
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Evaluating Relationships between Mercury Concentrations in Air and in Spanish Moss (<em>Tillandsia Usneoides</em> L.)
<p>Mercury is a potent neurotoxin that is transported globally in vapor form. A major source of mercury contamination to soil, water, and biota is atmospheric deposition. Therefore, comprehensive monitoring of atmospheric concentrations is important. Limitations of conventional atmospheric …
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Coastal urban atmospheric mercury cycling and emissions in Boston, MA
… to contribute to the body of knowledge regarding mercury emissions by reporting on a coastal, urban setting subject to inputs from both anthropogenic and oceanic reservoirs, in order to improve related policy decisions. Mercury can have serious health and ecological consequences, but the …
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Remediation Strategies for Mercury Contaminated Lakes and Reservoirs Within the State of California
<p>Mercury is an environmental and public health concern due to its neurodegenerative effects and ubiquitous concentration within the environment. To mitigate these risks and reduce concentrations within the environment, remediation methods are necessary. The purpose of this paper is to investigate …
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Activated Carbon Injection for Mercury Control in Coal-Fired Boilers
<p>Mercury is a toxic compound causing numerous health problems in humans. One of the ways that mercury is released into the atmosphere is through the burning of coal. The Environmental Protection Agency estimates that the United States consumes i billion tons of coal per year and coal-fired …
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Reaction mechanisms of hydrocarbon and mercury systems in the atmosphere and in combustion: A theoretical study of thermochemical and kinetic properties
… to develop alternative fuels and to reduce the emissions of toxic pollutants. The objective of this dissertation is to present thermochemical, kinetic and modeling results on two reference fuels (the land vehicle fuel isooctane and the jet fuel JP-10), on smaller cyclic alkanes and ethers, and …
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Atmospheric Mercury Species In Northern Mississippi: Concentrations, Sources, Temporal Patterns, And Soil-Air Exchange
Mercury is a highly toxic element that is found both naturally and as an introduced contaminant in the environment. The majority of Mercury released to the environment is into the atmosphere, where because of its high volatility and long residence time is dispersed globally. In order to better …
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Atmospheric Mercury and Methane in the South-Central U.S.
… temporal and spatial variations of atmospheric mercury and methane (CH4), and investigated their emission sources. Speciated atmospheric mercury observations collected over the period from 2008 to 2010 at the U.S. Atmospheric Mercury Network sites (AMNet) were analyzed. We found similar median …
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