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 72 for “"fine particulate matter"”.
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Fine Particulate Matter, Neuropathologies, & Dementia
Neurodegenerative disorders, including Alzheimer’s disease (AD) and related dementias (ADRD), affect over 47 million people worldwide, and this number is anticipated to reach 131.5 million by 2050. Because no medication successfully reverses the course of dementia, researchers are focusing …
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Fine particulate matter source apportionment of the brown haze in Cape Town
"Brown Haze" is a term used to describe a brown-coloured smog found predominantly in the wintertime in the Cape Town region. It occurs. mostly from April to September due to strong) temperature inversions and windless conditions that can occur during these months, which lead to the build-up of …
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A Geographical Comparison of the Relationship Between Aerosol Optical Depth and Fine Particulate Matter in Indiana
… between remotely sensed MODIS AOD data and fine particulate matter (PM2.5) data collected from ground sensors within the geographic region of the state of Indiana. It is believed that this topic should be studied further and expanded upon.
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Multiscale Spatial and Temporal Modelling of Fine Particulate Matter (PM2.5) from Wildfire Smoke Using Remote Sensing and Statistical Methods
… PM2.5 is considered the most concerning particulate, as it can be inhaled deep into the lungs, penetrate the human respiratory system, and enter the bloodstream. Studies assessing wildfire PM2.5 exposure and population health have traditionally employed three main approaches: (1) in situ …
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Connecting acellular oxidative potential (OP) with chemical composition and emission sources of ambient fine particulate matter (PM2.5) in the midwestern US
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Integration of Satellite Remote Sensing and Ground-based Measurement for Modelling the Spatiotemporal Distribution of Fine Particulate Matter at a Regional Scale
… (MODIS) is analyzed to estimate fine particulate matter (PM2.5) concentrations as the target air pollutant. The spatial-temporal distribution of columnar aerosol loading is investigated through mapping MODIS AOD in southern Ontario, Canada throughout 2004. Clear distribution …
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Laboratory studies of the multiday oxidative aging of atmospheric organic aerosol
Fine particulate matter (PM, or "aerosol") in the atmosphere affects the Earth's radiative balance and is one of the most important risk factors leading to premature mortality worldwide. Thus, understanding the processes that control the loading and chemical composition of PM in the atmosphere is …
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An investigation of the primary sources of the Cape Town brown haze
… of reduced visibility, caused by the presence of fine particulate matter in the atmosphere, which can originate from natural or anthropogenic sources. The "Brown Haze" is a phenomenon that is associated with Cape Town and can be described as brown coloured smog. It occurs over the winter months, …
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Spatial trends in surface-based carbonaceous aerosol measurements during DISCOVER-AQ in Houston, TX.
Carbonaceous aerosol (both fine particulate matter (PM₂.₅) and total suspended particulate (TSP)) were collected during NASA's DISCOVER-AQ (Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality) in Houston, TX during September 2013. Four …
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Analysis of the Impact of Air Pollutants, PM2.5 and O3, on Life Expectancy and Quality Adjusted Life-Expectancy in Canada
… the impact of reducing anthropogenic ozone and fine particulate matter (PM2.5), on mortality rates and incidence of chronic bronchitis (CB) and nonfatal myocardial infarction (AMI). The outcome measures are life expectancy and quality-adjusted life years. The methodologies used include: life …
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The Association Between Environmental Factors and the Risk of Paediatric Inflammatory Bowel Disease
… exposures to air pollution (nitrogen dioxide, fine particulate matter, ozone, and oxidant capacity) and greenspace (through the normalized difference vegetation index) were obtained based on residential six-digit postal code. Results: Exposure to oxidant capacity during childhood and …
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Vehicular Ammonia Emissions in Baltimore, Maryland
… ammonia is a precursor to the formation of fine particulate matter, which contributes to human health problems and decreased visibility. Atmospheric ammonia may also be transported through wet and dry deposition to water bodies such as the Chesapeake Bay, contributing to excess nutrient …
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Qualitative and quantitative assessment of UCM in PM2.5 of Bakersfield, CA.
Fine particulate matter (PM ₂.₅ ) was collected in Bakersfield, CA during the CalNex 2010 field experiment and was analyzed for primary organics using a gas chromatograph – mass spectrometer (GC-MS). Substantial presence of unresolved complex mixture (UCM) was observed in the collected PM ₂.₅ . To …
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Inequities in Air Pollution Exposure in the U.S.: An Exploration of Disparity Metrics Across Geographic and Temporal Scales
… States (U.S.), exposure to ambient 𝑃𝑀₂.₅ – fine particulate matter smaller than 2.5 micrometers in diameter– is responsible for the largest share of premature deaths associated with air pollution. Despite declines in average annual concentrations, significant disparities in 𝑃𝑀₂.₅ exposure …
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Air quality impacts of crop residue burning in India and mitigation alternatives
… USD in India attributable to exposure to ambient fine particulate matter (PM2.5) from crop residue burning, and finds Punjab, Haryana, and Uttar Pradesh contribute the majority (83%-95%) over 2005-2016, with 35-40% of impacts occurring in densely populated areas downwind. Second, this thesis …
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Aerosol formation from oil and gas development in the Eagle Ford Shale in two different seasons
… new Environmental Protection Agency standard for fine particulate matter.
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Air Quality in Mexico City: Spatial and Temporal Variations of Particulate Polycyclic Aromatic Hydrocarbons and Source Apportionment of Gasoline-Versus-Diesel Vehicle Emissions
… pollution problems, especially with ozone and particulate matter. Ozone levels exceed the health-based standard, which is equivalent to the U.S. standard, on approximately 80% of all days, and concentrations of particulate matter 10 μm and smaller (PM10) exceed the standard on more than 40% of …
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Association between Air Pollution Exposure and Self-Report of Recent Respiratory Infection: A MESA Air study
… Individual ambient air pollution exposures to fine particulate matter (PM2.5), oxides of nitrogen (NOx and NO2), and black carbon (BC) were estimated. Cross-sectional and longitudinal associations were examined with generalized linear models for each pollutant adjusted for confounders: study …
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