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 “"airborne particulate"”.
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Magnetism of anthropogenic airborne particulate matter
… global burden of disease associated with ambient particulate matter (PM<sub>2.5</sub>) pollution is the leading threat to life expectancy according to the Air Quality Life Index (AQLI) 2023 report. The study of airborne PM is key to understanding both its source, and its impact on human health. …
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The Chemical and Physical Characterization of Airborne Particulate Matter
Made available in DSpace on 2014-12-10T23:02:12Z (GMT). No. of bitstreams: 1 7511600.pdf: 4827618 bytes, checksum: 5913a11eaed42ac6a5bf013a67313768 (MD5) Previous issue date: 1974
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CMB7 receptor modelling of airborne particulate matter in the Vaal Triangle
… to do a one year source apportionment study of airborne particulate matter in the Vaal Triangle. The V AM programme was undertaken by Mintek, in South Africa. Three receptor sites were set up, oneea.ch in the Central Business District (CBD) of Vereeniging, Vanderbijlpark and Sasolburg. For this …
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Optical Remote Sensing of Airborne Particulate Matter to Quantify Opacity and Mass Emissions
During the second stage of this research, a technique was developed to obtain in-situ measurements of PM mass emissions for the dust plumes that are generated from unique military activities. The method was then tested in the field to measure dust emissions from artillery back blast and tracked …
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Determination of Size Fractions and Concentrations of Airborne Particulate Matter Generated From Construction and Demolition Waste Processing Facilities
… of these processes is the generation of particulate matter.This study involved quantifying and qualifying airborne particulates at three C&D processing facilities. Active stationary particulate sampling devices were employed to quantify the particle sizes of interest. Results were …
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Extraction methods for assessing the bioaccessibility of potentially toxic elements in urban airborne particulate matter by inductively coupled plasma mass spectrometry
Inhaled particulate matter (PM), containing bioaccessible potentially toxic elements (PTE) has attracted attention due to potential human health risk. This study was to develop and assess the suitability of simplified bioaccessibility extraction test (SBET) and the stomach phase of unified …
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The Improvement of Analytical Sensitivities for the Determination of Some Trace Elements in Airborne Particulate Matter by Epithermal Neutron Activation Analysis
Made available in DSpace on 2017-07-06T18:59:32Z (GMT). No. of bitstreams: 3 Wu_De_MS.pdf: 31317592 bytes, checksum: b9714d42b1ec202b034a2ef5092ba897 (MD5) Wu_De_MS_ABS.pdf: 616729 bytes, checksum: f8b28484609013b0973e5b2b15b2fef1 (MD5) license.txt: 4813 bytes, checksum: …
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Environmental justice education and atmospheric particulate analysis in urban environmental health policy development : indoor airborne particulate concentrations in preschools of asthmatic children in Newark
… with respect to the adverse health effects of particulate air pollution. This study analyzes the community locations and evaluates literature and other available air pollution data for the target communities in the city of Newark. The study focuses on asthma or reactive airway diseases as a …
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The significance of indoor:outdoor relationships, and physical and chemical composition in personal exposure to urban particulate matter
… there has been mounting evidence suggesting that airborne particulate matter may be responsible for the aggravation of a number of respiratory illnesses. Because of these health implications it is considered important to understand the sources of airborne particles, the pathways leading to human …
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Quantitative Apportionment of Urban Aerosol Mass by Factor Analysis
… for quantitatively resolving the sources of airborne particulate matter was developed. This procedure, called target transformation factor analysis (TTFA), requires no prior knowledge about the nature of the system under study. TTFA can determine the number of sources that are contributing to …
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The role of weather and topography in the airborne dispersal of particulate matter in Kent
… synoptic data have been examined in relation to airborne particulate material (PM10) concentrations recorded at 17 pollution monitoring sites throughout Kent for the period 2000 to 2008, as an aid to understanding dispersal patterns in relation to topography. In general, local and synoptic wind …
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Microbial characterisation of bioaerosols from indoor environments using molecular techniques.
… micro-environments. The biological fraction of airborne particulate matter has become of increasing interest owing to the potential allergenic and pathogenic nature of airborne micro-organisms. Biological aerosols are ubiquitous and abundant in the air we breathe in the built environment and …
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Characterization of Biomedical and Incidental Nanoparticles in the Lungs and Their Effects on Health
… the lungs are also in constant contact with airborne particulate matter. Thus, harmful nanoparticles can enter the lungs and cause or even exacerbate inflammatory diseases. Our work focused on characterization of both therapeutic and potentially harmful nanoparticles in the lungs. We found …
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Investigation into the mechanisms of size-resolved particle dry deposition across three environments
Airborne particulate matter, or aerosols, have significant impacts on radiative forcing through both their direct - scattering and absorbing light - and indirect effects- acting as cloud condensation nuclei and altering the lifetime of clouds. The magnitude of these effects is largely determined by …
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The effect of helical carbon nanotubes on macrophage function
… Studies examining the relationship of airborne particulate exposure prior to pulmonary infection have reached different conclusions. In some cases, pre-exposure either had no effect or enhanced clearance of pathogens while other studies showed particulates inhibit clearance. …
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An Assessment of Indoor Air Quality at Two Contrasting Location and Building Ventilation Types in London
… contribution of outdoor pollutants and indoor airborne particulate and gaseous pollutants may be responsible for the aggregation of a number of respiratory illnesses. Because of these possible health implications, it is important to understand the characteristics of each air pollutant …
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Geochemical Investigations of Respirable Particulate Matter
Over the course of our lives we are exposed to airborne particulate matter in the workplace, home, and environment that results in the deposition of millions of particles in the lung. These exposures may result in disease if they are significant enough. The potential for harmful exposure depends in …
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Spatiotemporal variation of PM2.5 over the contiguous United States
PM2.5 is the set of airborne particulate matter (also known as aerosols) with diameter 2.5 m or smaller. Ambient concentrations of these aerosols have been shown to be highly correlated with premature mortality throughout the world. Previous studies on ground-level, in-situ PM 2.5 concentrations …
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An Evaluation of exposures to respirable particulates, environmental PM2.5, PAHs and metal compounds in Western Australia
… Evaluation of Children’s Exposures to Respirable Particulates, Environmental PM2.5, PAHs and Metal Compounds in The South West of Western Australia. A cross sectional study to evaluate the exposures of children (n=18), and controls (n=15) to respirable particulates PAHs and metal compounds in the …
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VEHICLES¿ NON-EXHAUST EMISSIONS: SETUP OF EXPERIMENTAL APPROACHES FOR ON-ROAD CHARACTERIZATION OF TIRE WEAR AND ROAD DUST PARTICLES
… as a dominant and under-investigated source of airborne particulate matter. TRWPs are mechanically generated, chemically complex, and highly variable, posing challenges for both environmental monitoring and regulatory standardization. Despite growing scientific interest, no harmonized …
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