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 24 for “"Personal exposure"”.
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Personal exposure of children to formaldehyde in Perth, Western Australia
… found in elevated concentrations in indoor air. Exposure to formaldehyde has the potential to impact on respiratory health, particularly amongst sensitive individuals and populations, including children. Children spend most of their time indoors at home, however, there are very little data on the …
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Using novel portable air quality monitors to improve personal exposure and dose estimations for health studies
… of the causal links between air pollution exposure and human health is needed. However, conventional health studies are restricted by methodological limitations such as miss-estimations of personal exposure and the interdependence between different pollutant species when using traditional …
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The significance of indoor:outdoor relationships, and physical and chemical composition in personal exposure to urban particulate matter
… particles, the pathways leading to human exposure and the variables affecting the degree of exposure. The main objectives of this research is to assess the relationships between indoor and outdoor respirable particulate matter, the primary factors influencing this relationship and how this …
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A PARTICIPATORY APPROACH TO ASSESS CHILDREN PERSONAL EXPOSURE TO BLACK CARBON IN AN URBAN ENVIRONMENT: SPATIAL ANALYSIS, PERSONAL MEASUREMENTS, AND POSSIBLE MITIGATION ACTIONS.
… air pollution and health outcomes, reducing exposure misclassification in epidemiological studies remains an important challenge in the framework of exposure science. The aim of this dissertation is to present a novel participatory approach to assess schoolchildren exposure to air pollution …
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A methodological framework to assess multi-pollutant personal air quality exposure for improved health associations
… premature deaths worldwide annually. However, exposure studies, often utilising measurements from stationary outdoor instruments from sparse monitoring networks, cannot capture spatial heterogeneity or the fact that people spend significant fractions of their time indoors. This failure to …
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A statistical investigation of ozone exposure assessment by direct and indirect measurement
Recent studies have proposed the application of exposure-based criteria in developing alternative primary ambient ozone standards. Historically, epidemiological studies of ozone have approached exposure assessment in a simplistic fashion with simplistic methods used to estimate ambient ozone …
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Investigating metal exposure on the general populace of the copper mining town of Kitwe, Zambia
… environment, hence increasing the risk of metals exposure to human populations living in and around mining areas. Recent research has focused on the environmental impact of copper mining byproducts such as lead, cadmium, copper, cobalt and arsenic, found at elevated concentrations in the …
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Psychophysiological Markers of Cognitive Reactions to Depictions of Corporal Punishment
… such as tendency to internalize shame or greater personal exposure to corporal punishment. Subsequent analyses, however, discovered some unexpected significant trends and relationships. </p>
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Evaluation of Exposures to Diesel Particulate Matter Utilizing Ambient Air Monitoring and Urinary Biomarkers Among Pedestrian Commuters who Cross the U.S.-Mexico Border at San Ysidro, CA.
… air pollution, including diesel exhaust (DE). DE exposure has been associated with numerous adverse health effects, particularly cardiovascular and respiratory problems, including as lung cancer. Pedestrian crossers wait in line for extended periods and stand within 10 feet of highly concentrated …
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ASSESSMENT OF THE RELATIONSHIP BETWEEN OUTDOOR AND INDOOR CONCENTRATIONS OF AIRBORNE PARTICULATES IN RESIDENTIAL BUILDINGS IN SINGAPORE
A small-scale comprehensive indoor, outdoor and personal particle characterization study was conducted in a non-smoking apartment for a period of 2 to 10 days during April, 2003 to May, 2003. Concurrent indoor, outdoor and personal particle number measurements were recorded using a handheld …
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A mixed-methods exploration of death exposure in certified nursing assistants: moderating factors and implications
… is known about the impact of frequent death exposure on CNAs. The present project examined these issues in a set of three interrelated studies, employing mixed-methods analyses. The first study found support for a new measure of attitudes toward advance care planning (ACP) in two samples, …
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Development and characterization of a high resolution portable gamma spectrometer
… demand to enhance nuclear safety and to minimize personal exposure to radioactive materials has a significant impact on research and development of radiation detection instrumentation. Currently, there is ample effort worldwide in the pursuit of radiation detection to maximize the accuracy and …
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Monitoring and Control of Coal Dust Exposure Using Low-Cost PM Sensors and Computational Fluid Dynamics
<p>"Overexposure to respirable coal mine dust has been linked to causing serious health problems including coal workers pneumoconiosis (CWP) and chronic massive fibrosis. The prevalence of these health problems has been on the increase since the 2000s due to increased exposure levels with roof …
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COMMUTER EXPOSURE TO AEROSOL POLLUTION ON PUBLIC TRANSPORT IN SINGAPORE
A large proportion of aerosol exposure is experienced during daily commuting trips due to the proximity to traffic. Improved understanding of the variability across transport modes and transportation choices is important for commuters and authorities. Mobile measurements of PM10, PM2.5, particle …
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The experience of reducing environmental risks in an environmental justice community
… that their concerns are not heard and when personal and community efforts are ineffective to improve the community condition. Yet, from such a life-world has emerged individuals' intentions, that is, individuals' consciousness of effort, to reduce the environmental risk. The essential …
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Simulation of a Singular Cough Event in an Enclosed Breakroom
… events in various situations of prolonged personal exposure. This study simulates the evolution of a singular cough event in a computer modeled breakroom. In addition, another model is created to simulate the inlet conditions. This model is a detailed simulation of the inlet flow through a …
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Familial variation in personal PM2.5 exposure within a rural Rwandan community pre and post clean energy intervention
Exposure to fine particulate matter (PM2.5) from solid fuel combustion is a major determinant of global morbidity and mortality. However, demographic variations in personal exposure remain uncertain across many high-risk populations. Liquefied petroleum gas (LPG) stoves have been proven to emit far …
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Metal exposure in non-occupationally exposed pregnant women of Western Australia and contribution of environmental sources
… pollution is a growing global concern and human exposure has been associated with increased chronic and acute health effects even at low metal concentrations (Hu et al., 2006; US EPA, 2007; Rice et al., 2010; UNEP, 2010). Sensitive members of the population, such as neonates, children and …
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Miniaturization of Electrical Ultrafine Particle Sizers
… related. To meet the increasing demanding for personal exposure monitoring and spatial distribution measurements of ultrafine particles, this dissertation studied the development and miniaturization of electrical ultrafine particle sizers (EUPS). There are three essential components for …
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Studies of urban air quality using electrochemical based sensor instruments
… for urban air quality assessment as well as for personal exposure studies. Three principal pollutants CO, NO and NO2 are simultaneously measured in each unit of the AQ instrument including temperature / RH measurements as well as GPS (for time and position) and GPRS for data transmission. …
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