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 10 of 10 for “"pollution modeling"”.
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Air pollution modeling
Three air pollution models are presented which address themselves to the specific problems of 1) pinpointing locations of relative maxima, 2) producing air quality maps efficiently, and 3) presenting. graphic representation of patterns of pollution over a mesoscale region. MAXPOL-A is a …
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Thermal pollution modeling of the New River
… heat dissipation was greater. A description of modeling methods, Froude scaling theory, present methods of measuring waste heat at power plants, and an evaluation of modeling as an effective method of predicting the thermal plume from a power plant is included.
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Parameter uncertainty in nonpoint source pollution modeling
… nature of inputs in nonpoint source (NPS) pollution modeling and the lack of information in many cases results in considerable uncertainty in model input parameters, and therefore, model outputs. Uncertainty in input parameters has important implications for model use in simulation studies …
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Nonpoint source pollution modeling of an agricultural watershed within a geographic information system
… in the past two decades, nonpoint source (NPS) pollution continues to be an important environment management and water quality management problem. For the most part, analysis of NPS pollution in watersheds has depended on the use of lumped mathematical models to identify potential problem areas …
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Health Risks from On-Road Truck Emissions in Little Village, Chicago Pre- and Post-COVID Pandemic
… emissions are a major contributor to urban PM2.5 pollution. As freight activity intensifies in densely populated cities, understanding the impact of truck-related emissions on air quality and public health becomes critical, particularly in environmental justice communities. This thesis presents an …
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Using Mobile Monitoring and Vehicle Emissions to Develop and Validate Machine Learning Empirical Models of Particulate Air Pollution
Increasing levels of air pollution are prompting researchers to develop more reliable air pollution modeling approaches in order to protect the public and the environment from toxic contaminants and airborne pathogens. Although land use regression has long been used to assess exposure to air …
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Modeling Fate and Transport of Nitrogen and Phosphorus in Crop Fields Under Tropical Conditions
Modeling is a very important tool for developing nonpoint source (NPS) pollution control plans. Current NPS models were developed for temperate conditions and, thus, do not appropriately represent tropical conditions. The objective of this research was to develop or adapt a nonpoint source …
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Modeling the Effects of Local Air Pollution Control Measures on Air Quality in the Shenandoah Valley
… and politically feasible ways to reduce air pollution. In this study we aim to provide the scientific basis for air quality management strategies through modeling the sensitivity of various pollutants to changes in emissions. We distinguish between locally generated versus regionally …
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Sediment Delivery from Reopened Forest Roads at Stream Crossings in the Virginia Piedmont Physiographic Region, USA
Efforts to control surface runoff and erosion from forest roads at stream crossings are critical for the protection of aquatic ecosystems in forests. In this research, annual and event-based sediment delivery rates were estimated for reopened legacy roads at forest stream crossings in the Virginia …