Index Catalog // ScholarsArchive@OSU

Development and evaluation of the mallard duck as a model to investigate the immunotoxicity of environmental chemicals

Creator:: Fowles, Jefferson R.
Resource Type:: Dissertation
Full Text:: Evaluation of the Mallard Duck as a Model to Investigate the Immunotoxicity of Environmental Chemicals

Biochemical and physiological indicators of behavioral impairment in salmonids exposed to chlorpyrifos and copper

Creator:: Sandahl, Jason
Abstract:: The purpose of this work was to determine if environmentally-relevant concentrations of chlorpyrifos and copper, two commonly detected chemicals in Western surface waters, can negatively impact the biological health of salmonids. Both compounds are highly neurotoxic to fish, but each with distinct biological target sites and mechanisms of action. We...
Resource Type:: Dissertation
Full Text:: of Environmental and Molecular Toxicology Dean of the GaIuaTe School I understand that my

Effects of esfenvalerate on native macroinvertebrates representative of Pacific Northwest streams

Creator:: Johnson, Katherine R.
Abstract:: Aquatic insects are essential components of healthy stream ecosystems, contributing to nutrient cycling, trophic dynamics and other ecological functions. Aquatic insect species, particularly those in the orders Ephemeroptera, Plecoptera and Trichoptera (EPT taxa) are however, extremely sensitive to insecticide contamination. Given that urban and agricultural use of synthetic pyrethroid insecticides...
Resource Type:: Dissertation
Full Text:: Head of the Department of Environmental and Molecular Toxicology Dean of the Graduate School

Exposure and health risk assessment for farmers occupationally exposed to chlorpyrifos in Sri Lanka and drinking water and house dust analysis for chlorpyrifos

Creator:: Aponso, G. Lalith M.
Abstract:: This study was designed to assess chiorpyrifos exposure of a group of farmers by determining internal dose associated with a given application of this insecticide. This involved the monitoring of urinary levels of 3,5,6 trichloro-2-pyridinol (TCP), the major metabolite of chlorpyrifos. Incidental exposure was evaluated by determining the levels of...
Resource Type:: Dissertation
Full Text:: on July 30, 2001 APPROVED Major Professor, representing Environmental and Molecular Toxicology

Environmental behavior of Dacthal

Creator:: Wettasinghe, Asoka
Abstract:: The herbicide, Dacthal (dimethyl 2,3,5,6,-tetrachloroterephthalate) is hydrolyzed to give the corresponding diacid and this derivative is a common contaminant in ground water. In the Ontario region of eastern Oregon the use of this herbicide on onions has resulted in the contamination of an aquifer with this derivative. Since movement to...
Resource Type:: Masters Thesis
Full Text:: Environmental behavior of Dacthal AN ABSTRACT OF THE

Chemical and environmental factors affecting pesticide volatilization from turfgrass

Creator:: Conway, Michael S.
Abstract:: Volatile loss rates of pesticides from turfgrass were measured using the Backward-Time Lagrangian Stochastic Dispersion model (Flesch et al., 1995). Solar radiation, ambient temperature, surface temperature, relative humidity, wind direction, and wind speed were monitored continuously. Growth regulator was applied to the turf plot several days before pesticide application to...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Toxicology presented on December 18, 2002. Title: CHEMICAL AND ENVIRONMENTAL

Unraveling tissue regeneration using chemical genetics

Creator:: Mathew, Lijoy K.
Abstract:: The emerging field of regenerative medicine is mainly approached by two different aspects. First is the use of stem cell based models to generate a suite of differentiated cells for therapeutic applications and the alternative approach is to utilize the non-mammalian models that have the inherent capacity to regenerate their...
Resource Type:: Dissertation
Full Text:: Department of Environmental and Molecular Toxicology Dean of the Graduate School

Long-term fertilizer input influences total and bioavailable metal in agricultural soils and crops

Creator:: Pérez, Angela L.
Abstract:: Protection of the quality and integrity of food supplies is of global concern. Crops can accumulate non-nutritive and sometimes toxic metals and metalloids. Accumulated metals/metalloids can come in part, from fertilizers, which may contain variable levels of non-nutritive metals or metalloids such as arsenic (As), cadmium (Cd), lead (Pb), nickel...
Resource Type:: Dissertation
Full Text:: Toxicology Head of the Department of Environmental and Molecular Toxicology

Assessment of exposure and response to atmospherically-derived contaminants in U.S. Arctic freshwater fish

Creator:: Allen-Gil, Susan M.
Abstract:: The Arctic has long been considered to be a pristine environment, far from population centers and pollution sources. The detection of synthetic organochlorine compounds in various elements of the Arctic food web has confirmed the global dispersion of pollutants, particularly of persistent compounds such as organochlorines and heavy metals. Levels...
Resource Type:: Dissertation
Full Text:: Geochemical and Environmental Reseach Group at Texas A&M University has been essential. Deborah Coffey has

Total exposure profiles of azinphosmethyl and azinphosmethyl-oxon to orchard workers in the Pacific Northwest

Creator:: Moate, Thomas F.
Resource Type:: Masters Thesis
Full Text:: environmental conditions effects attenuation throughout an entire use season. Increased understanding of these

ScholarsArchive@OSU

Development and evaluation of the mallard duck as a model to investigate the immunotoxicity of environmental chemicals

Biochemical and physiological indicators of behavioral impairment in salmonids exposed to chlorpyrifos and copper

Effects of esfenvalerate on native macroinvertebrates representative of Pacific Northwest streams

Exposure and health risk assessment for farmers occupationally exposed to chlorpyrifos in Sri Lanka and drinking water and house dust analysis for chlorpyrifos

Environmental behavior of Dacthal

Chemical and environmental factors affecting pesticide volatilization from turfgrass

Unraveling tissue regeneration using chemical genetics

Long-term fertilizer input influences total and bioavailable metal in agricultural soils and crops

Assessment of exposure and response to atmospherically-derived contaminants in U.S. Arctic freshwater fish

Total exposure profiles of azinphosmethyl and azinphosmethyl-oxon to orchard workers in the Pacific Northwest

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