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Articles 1 - 7 of 7
Full-Text Articles in Environmental Health
Winter Dynamics Of Storm Water Management Ponds And Winter Tolerance In Three Aquatic Plant Species, Patrick Strzalkowski
Winter Dynamics Of Storm Water Management Ponds And Winter Tolerance In Three Aquatic Plant Species, Patrick Strzalkowski
Theses and Dissertations (Comprehensive)
The vast majority of the research into the performance of stormwater management ponds (SWMPs) has been performed in warm regions or during the warmer seasons in temperate regions. It is presumed that SWMPs are inactive in the winter as any potential stormwater is trapped in snow and ice. The main goal of this thesis was to test this presumption and to study the dynamics and performance of three SWMPs during the winter. Remote water level loggers were installed into the three SWMPs and daily grab samples from the influents and effluents were taken and analyzed for total phosphorus (TP), chloride, …
Partitioning Of Volatile Organic Compounds Into The Multiple Environmental Compartments, Jeonghyeon Ahn
Partitioning Of Volatile Organic Compounds Into The Multiple Environmental Compartments, Jeonghyeon Ahn
Theses and Dissertations
Volatile organic compounds (VOCs) dominate the class of pollutants that accumulate in the atmosphere and indoors. Partitioning coefficient is a measure of a compound’s ability to distribute between two phases. Assessing the partitioning of VOCs is essential to determine their transport, fate, behavior, and adverse environmental and health impacts across multiple environmental compartments. Studies on VOC partitioning have been limited because discriminating the small mass fraction of VOCs in aerosol particles is difficult to quantify. The partitioning of VOCs into soil, air, and aerosol particle phases was investigated under dynamic laboratory conditions. A bench-scale system that precisely controlled the relative …
Bacterial Water Quality Monitoring As Citizen Science In Congaree National Park, South Carolina, Shea Mccarthy
Bacterial Water Quality Monitoring As Citizen Science In Congaree National Park, South Carolina, Shea Mccarthy
Theses and Dissertations
Congaree National Park aims to preserve its natural and cultural resources while protecting these benefits for current and future enjoyment. Hydrologic features make up a large portion of the park and attract visitor recreation. There are several known sources of pollution that enter these waterways, mainly from upstream sources of waste discharge. The national park and its surrounding areas hold great ecological significance, however, there are many threats to the surface water quality in this area. Water quality degradation can impact the ecosystem, wildlife, and visitor experience. This project specifically considers exposure to fecal contamination in surface waters from upstream …
Linking Microbial Phylogenetic And Functional Gene Diversity To Microbial Mat Ecosystem Function Following Environmental Disturbance, Eva Christine Preisner
Linking Microbial Phylogenetic And Functional Gene Diversity To Microbial Mat Ecosystem Function Following Environmental Disturbance, Eva Christine Preisner
Theses and Dissertations
The ability of ecosystems to adapt to environmental perturbations depends on the duration and intensity of change and the overall biological diversity of the system. In this study, a microbial mat ecosystem located on San Salvador Island, the Bahamas was used as a model to examine how environmental disturbance affects microbial community resistance, their protein synthesis potential (PSP), ecosystem function as measured by biogeochemical cycling, community stability, and resilience. This ecosystem experienced a large shift in salinity (230 to 65 g kg-1) during 2011–2012 following the landfall of Hurricane Irene on San Salvador Island. High throughput sequencing and analysis of …
A Geospatial Analysis Of Norovirus Outbreaks In California, And An Investigation Of The Impact Of Environmental Variables, Alexandra Groen
A Geospatial Analysis Of Norovirus Outbreaks In California, And An Investigation Of The Impact Of Environmental Variables, Alexandra Groen
Master's Projects and Capstones
Previous studies and empirical evidence suggest norovirus outbreaks in California exhibit correlation with environmental variables and exhibit spatial spread patterns. Few studies have been done looking at what causes norovirus seasonality in temperate climates and more research is needed on the regional level. This study aims to find what relationships exist with outbreak occurrence and environmental variables in California, as well as any spatial patterns of spread or clustering of outbreaks. Spatial analysis tools were used to find any relationships between California norovirus outbreak data and environmental variables. The results showed a south to north spread of outbreaks in California …
Effects Of Nanosilver And Silver Nitrate Exposure On Fathead Minnows (Pimephales Promelas) And Zebrafish (Danio Rerio), Adam D. Hawkins
Effects Of Nanosilver And Silver Nitrate Exposure On Fathead Minnows (Pimephales Promelas) And Zebrafish (Danio Rerio), Adam D. Hawkins
Electronic Theses and Dissertations
Silver nanoparticles (AgNPs) due to their unique antimicrobial properties are among the most widely utilized nanoparticle. Because of the nature of the products that utilize AgNPs, environmental release of AgNPs is inevitable. At greatest risk is the aquatic ecosystem due to known toxicity of the Ag + ion to aquatic organisms. Our goal was to use two fish models, fathead minnows (Pimephales promelas; FHMs) and zebrafish ( Danio rerio; ZFs), to study the effects of AgNPs on gill histopathology, Na+/K+-ATPase immunoreactivity, mucus production, bioaccumulation, particle uptake characterization, gill gene expression, and lethality in varying water parameters in comparison to the …
Biomonitoring Of Perfluorochemicals In Human Blood, Breast Milk, Saliva, And Urine, Lin Tao
Biomonitoring Of Perfluorochemicals In Human Blood, Breast Milk, Saliva, And Urine, Lin Tao
Legacy Theses & Dissertations (2009 - 2024)
Perfluorochemicals (PFCs) have been used as surfactants and surface protectors in a large number of consumer products. PFCs have been reported to elicit adverse health effects in laboratory animals and humans, and have been detected in foodstuffs and in human bodies. In this dissertation, analytical methods were developed for the determination of trace levels of PFCs in human blood, dried blood spot, breast milk, saliva, and urine. An assessment of human exposure to PFCs was performed by analyzing human specimens collected from the United States and several Asian countries. Blood, breast milk, and dried blood spots were found to be …