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 12 of 12 for “"Pollution-source"”.
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Bayesian and Positive Matrix Factorization approaches to pollution source apportionment
The use of Positive Matrix Factorization (PMF) in pollution source apportionment (PSA) is examined and illustrated. A study of its settings is conducted in order to optimize them in the context of PSA. The use of a priori information in PMF is examined, in the form of target factor profiles and …
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A Survey of Pollution on Selected Streams in the Black Hills of South Dakota
… surveyed to determine the influence of suspected sources of pollution on these streams. The sources of pollution included both sewage treatment plant effluents and mining wastes. A comparison of the benthic fauna community below a pollution source to that above it was the primary basis for …
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Lichens as air pollution assays on the Western Cape coast
A pollution survey was done in Milnerton industrial area along three transects, the coastal road, the R27 road, and the N7 road. In this project lichens were used as pollution monitors and their availability, abundance and percentage cover were used to estimate the level of pollution. Lichen …
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Temporally Correlated Dirichlet Processes in Pollution Receptor Modeling
Understanding the effect of human-induced pollution on the environment is an important precursor to promoting public health and environmental stability. One aspect of understanding pollution is understanding pollution sources. Various methods have been used and developed to understand pollution …
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American Alligator Fecal Coliform and Pathogen Identification, Genotypic Fingerprinting, and REP-PCR Bacterial Source Tracking in South Carolina
… performed to assess numerous coastal nonpoint source pollution components from poikilothermic (i.e. cold-blooded) wildlife sources, including fecal coliform identification, genotypic fingerprinting, and bacterial source tracking. The overall goals were to identify, fingerprint, and detect …
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Application of Mineral Magnetic Measurements as a Pollution Proxy for Urban Road Deposited Sediment
… Sediment (RDS) is an important pathway of pollution material in the urban environment. Traditional particulate matter (PM) monitoring methods are typically expensive and time consuming. To date, urban sediment studies have not fully explored the application of mineral magnetic technologies …
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Evaluating Columbus, Georgia, Tree Canopy Interactions with Air Pollutants Using High Spectral Imagery and Portable PM Sensors
… unsupervised classification procedures. Air pollution removal rates from the i-Tree program were applied to this evaluation providing an estimate of the city’s tree air quality benefits. The city’s canopy overall has remained steady at 52% of the 38,143 hectares that compose the municipality …
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Air quality assessment and the use of specific markers to apportion pollutants to source.
The contributions of specific polluting sources to both indoor and outdoor atmospheric pollution are difficult to determine, as solid and gaseous products from different combustion sources are often similar. Sometimes, however, a marker compound can be identified that is unique to a pollution …
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The role of buoyancy in the dispersal of marine plastic debris and the impact of biofouling : does size matter?
… that a significant proportion of the plastic pollution that enters the sea is disappearing from the surface, despite being less dense than seawater. Observations across size classes show that it is particularly smaller plastics, <5 mm in length, that are susceptible to removal. The dynamics …
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Lichens as a biomonitoring tool for detecting heavy metal air pollution associated with industrial activities in Collie, south-western Australia
… have been developed for monitoring air pollution and forest ecosystem health. Lichens have been used effectively to determine the dispersion of heavy metals emitted by industrial point-sources; however the approach has not been commonly used in Australia. This thesis aimed to determine …
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Υγιεινολογικός έλεγχος των πόσιμων υδάτων του γεωγραφικού διαμερίσματος Ηπείρου
… of Epirus. The bacterial indicators of water pollution (total count, total coliforms, fecal coliforms and enterococci) were used in this study. Also, 334 strains grown on the m-Endo agar (enterobacteriaceae) were further identified. Fifteen hundred and fifty samples of potable water from the …
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Propuesta de un plan de acción que genere cultura para el manejo adecuado de los residuos sólidos domiciliarios en tres conjuntos residenciales de estratos 3 y 4 en la localidad de Suba
El manejo de los residuos sólidos domiciliarios es un pilar muy importante para promover la sostenibilidad, garantizar la salud pública, proteger el medio ambiente y aprovechar los beneficios económicos; y es por esto, que este proyecto de investigación fue desarrollado con el fin de proponer un …