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.
Results
Showing 1 to 14 of 14 for “"Atmospheric particulate matter"”.
-
Characterization of Atmospheric Particulate Matter in Mountaintop Mining and Non-mining Areas in West Virginia with Known Health Differences
… mining activities result in the production of atmospheric particulate matter (PM), which is associated with environmental and human health effects. Environmental studies of air and water quality in southwest West Virginia provide evidence of air contamination and surface and ground water …
-
Laboratory Investigations Into the Fate of Aromatic Pollutants in Natural Waters
… aerosols, often contain both water and organic matter (OM). Reactivity can differ significantly between aqueous and organic phases. We have measured photolysis kinetics of the polycyclic aromatic hydrocarbons (PAHs) anthracene and pyrene in several organic solvents and in water, in miscible and …
-
Spatially resolved life cycle models for the environmental footprint of electricity generation
… quality framework has been expanded to include atmospheric particulate matter as an air quality impact. This modeling framework will be used to assess the air quality impacts of new natural gas developments in the Barnett and Eagle Ford shale regions in Texas, the consumptive water impact of new …
-
Determination of the Oxidative Capacity of Soot Toward GSH and Characterization of Soot Physicochemical Properties
<p>Fine atmospheric particulate matter (PM<sub>2.5</sub>) emitted during the combustion of fossil and biomass fuels is known to adversely affect human health. While the underlying mechanisms are thought to be driven by the generation of reactive oxygen species (ROS), specific particle …
-
Formation and evolution of atmospheric organic matter from radical intermediates
Atmospheric particulate matter (or "aerosol") has important implications for public health, climate change, and visibility. Our ability to predict its formation and fate is hindered by uncertainties associated with one type in particular, organic aerosol (OA). The study of the chemistry underlying …
-
Cellular and acellular assays for measuring oxidative stress induced by ambient and laboratory-generated aerosol
Exposure to atmospheric particulate matter (PM) is a leading global health risk with various proposed mechanisms of action, including the induction of oxidative stress through PM-initiated production/release of reactive oxygen and nitrogen species (ROS/RNS). This dissertation explores cellular and …
-
The role of aqueous-phase oxidation in the formation of highly-oxidized organic aerosol
Atmospheric particulate matter (or "aerosol") is known to have important implications for climate change, air quality, and human health. Our ability to predict its formation and fate is hindered by uncertainties associated with one type in particular, organic aerosol (OA). Ambient OA measurements …
-
Measurements of Atmospheric Radicals
<p>Atmospheric particulate matter (PM) is a global health concern. PM<sub>2.5</sub> is formed primarily through combustion processes such as automobile use and industrial activity. Natural sources of PM<sub>2.5</sub> result from events like volcanos and wildfires. Upon inhalation, PM<sub>2.5</sub> …
-
Measurement, Characterization, and Source Apportionment of the Major Chemical Components of Fine Particulate Material, Including Semi-Volatile Species
The promulgation of revised standards for atmospheric fine particles (PM2.5) by the US EPA has sparked renewed interest in the ability to accurately measure and characterize suspended atmospheric particulate matter. Semi-volatile material (SVM), consisting of ammonium nitrate and semi-volatile …
-
Decadal trends in atmospheric organic aerosol :
… aerosol (OA) makes up a substantial fraction of atmospheric particulate matter, yet its sources and controlling factors - and thus its impacts on climate and human health - are not well understood. Recently-developed analytical techniques have provided new insight into OA chemistry, but major …
-
Micro-analytical methodologies for the characterization of airborne inorganic pollutants collected on unconventional substrates
… development of a methodology for the study of atmospheric particulate matter (PM) which is alternative to instrumental measurements. The methodology developed exploits the surfaces already present in the field as samplers of PM. In particular, conifer needles and building facades are employed …
-
Evaluation and improvement of optical remote sensing methods in monitoring particulate matter emissions and plume opacity
Atmospheric particulate matter (PM) affects human health, reduces visibility, and impacts climate. PM also causes plume opacity, which is defined as percentage of light that is attenuated by a plume. This research focuses on two optical methods that have been developed and implemented previously to …
-
Simulating the sources of organic aerosol in the atmosphere
Atmospheric particulate mattercan cause serious health problems in human health. Also they can reduce the visibility and they act as cloud condensation nuclei. Through the absorption and the scattering they can have a big influence on the energy balance of the planet. The organic components of …