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Space-Time Pattern Of Underground Radon Emission And The Influence Of Environmental Factors Using Sensor Networks, Sumya Tasnim
Space-Time Pattern Of Underground Radon Emission And The Influence Of Environmental Factors Using Sensor Networks, Sumya Tasnim
Geosciences Theses
Radon is the leading cause of lung cancer after smoking. There is a lack of information regarding underground radon concentrations at a local scale. This research assessed the underground radon emissions from 30 sensors from May 2022 to January 2023. This thesis utilized the emerging hotspot technique to identify the hotspots and coldspots of underground radon concentrations. It then evaluated their correlations with temperature, humidity, air pressure, CO2, and volatile organic compound (VOC). The results indicated that the western side of the testbed and the warmer season had more hotspots than the rest of the area and colder …
Evaluating The Confluent Impact Of Geology, Housing Characteristics, And Season On Indoor Radon In Atlanta Metropolitan Area, The United States, Eunhee Kim
Geosciences Theses
Radon is a radioactive gas that potentially causes lung cancer after long-term exposure. This thesis investigated the confluent impact of geology, housing characteristics, and season on indoor radonand identified the significant factors associated with elevated radon levels in Atlanta metropolitan area, USA. Using the data obtained from the private vendor, Air Chek, this study identified hot spots of high radon levels. The hot spots were found in Douglas, Fulton, DeKalb, and Gwinnett. Through binary logistic regression analysis, this study identified that the granite and orthogneiss bedrock, the ranch-style house, the presence of a basement, and the test in cold seasons …
Distribution Of Contamination Sources In The Atlanta Metropolitan Area Along The Upper Chattahoochee River Basin: An Environmental Justice Focus, Ahmadou T. Deme
Distribution Of Contamination Sources In The Atlanta Metropolitan Area Along The Upper Chattahoochee River Basin: An Environmental Justice Focus, Ahmadou T. Deme
Geosciences Theses
Over the last few decades, the rapid expansion of the Atlanta urban area has led to the increase of the number of sources of pollutions around the area and the level of pollution in the Chattahoochee River. This research analyzed the change in the distribution of sources of contamination over time and space, and evaluated their impact on environmental justice in the Atlanta metropolitan area. The results indicate contaminated areas increased from 2000 to 2019, spreading from the central metropolitan area to the south along the Chattahoochee River. The Box and whisker plots indicated existence of spatio-temporal variations in the …
The Implementation And Education Of Geographic Information Systems In A Local Government For Municipal Planning: A Case Study Of Dangriga, Belize, Craig Skelton
Geosciences Theses
Implementing Geographic Information Systems (GIS) in a developing country can improve spatial planning and decision-making. Utilizing a Participatory GIS framework of maximizing community empowerment and limiting marginalization, this thesis research explores the barriers associated with implementing GIS in Dangriga, Belize and how to overcome those barriers. The research included the identification of local needs that could benefit from the use of GIS, the collection of local data through group and individual data collections, and the utilization of locally collected data to conduct GIS training sessions. It was learned that Dangriga faces many barriers found in other developing countries: institutional inertia, …
Gis Least-Cost Route Modeling Of The Proposed Trans-Anatolian Pipeline In Western Turkey, Austin Kelly
Gis Least-Cost Route Modeling Of The Proposed Trans-Anatolian Pipeline In Western Turkey, Austin Kelly
Geosciences Theses
The routing of the Trans-Anatolian Pipeline plays an important role in the future energy security of the European Union. The natural gas pipeline is planned to run from the natural gas fields in the Caspian Sea through Turkey. This project is a case study for a Geographic Information System (GIS) least-cost route analysis of a section of the proposed pipeline in Western Turkey. The route analysis comprised of weighting multiple types of criteria in a compiled risk assessment map that was analyzed by a least-cost algorithm to display the least hazardous route through the study area. Multiple varieties of criteria …
Evaluating The Performance Of A Filtered Area Weighting Method In Population Estimation For Public Health Studies, Andrew Chiang
Evaluating The Performance Of A Filtered Area Weighting Method In Population Estimation For Public Health Studies, Andrew Chiang
Geosciences Theses
Areal interpolation is a geospatial analysis method that allows researchers to estimate the incidence of a phenomenon in one set of areal units given data based on different areal units. One practice implemented in conjunction with areal interpolation is known as filtered area weighting, in which ancillary data is introduced to exclude specific areas from the areal units based on certain criteria, thus providing a more accurate representation of population distribution. This thesis examines the benefits that filtered area weighting can provide to population estimation using a hospital accessibility case study. The study shows that filtered area weighting does not …
Spatiotemporal Analyses Of Child Pedestrian-Vehicle Incidents Occurring During School-Commuting Hours In Metro Atlanta From 2000 To 2007, Amy M. Moore
Geosciences Theses
From 2000 to 2007, the five core county area of Metropolitan Atlanta (Fulton, Dekalb, Clayton, Cobb and Gwinnett) experienced 1,871 incidents involving child pedestrians. Nearly one-third of these incidents occurred during school-commuting hours. This study examines the geospatial locations of these incidents, with regards to the location of all 647 public schools within the study area. A GIS is used to analyze the spatiotemporal arrangement of these incidents in order to find risk factors and patterns in the data. Aspects of the built environment are then considered in areas with higher frequencies of child pedestrian-vehicle incidents. A walkability assessment is …