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 8 of 8 for “"Toxaphene"”.
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Utilization of the Phanerochaete chrysosporium ligninolytic system and the potential for toxaphene degradation
… system to degrade the alkyl halide pesticide toxaphene were explored in pure liquid cultures. The effects of culture growth temperature and toxaphene concentration were evaluated. The extent of toxaphene conversion with time was determined using three different indicators; toxaphene gas …
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The impact of climate change on air-water exchange of toxaphene in Lake Superior
This study examined how toxaphene dynamics in Lake Superior have changed since 1995. A model developed by Swackhamer et al. (1999) was updated using measurements taken by the National Data Buoy Center to represent conditions from 1995 to 2012. Buoy trends observed on Lake Superior from 1979-2012 …
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Determination of Minimum Lethal Level of Toxaphene As A Piscicide in Lakes of North Dakota
Toxaphene as a piscicide for localized field application has not been widely used because minimum lethal concentrations have not been in the field. There is, however, considerable information gained from laboratory bio-assay studies (Surber, 1498; Duedoreff, et al. 1953; Hooper and Grzenda, 1955, …
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Growth Rates of Yellow Perch, Perca Flavescens (Mitchell), in two North Dakota Lakes After Population Reduction with Toxaphene
… numbers of the problem species. Relatively low toxaphene concentrations in two North Dakota lakes substantially reduced the density of the yellow perch population the effect on other fish species was less obvious. The results reported (Henegar,1961) were incidental to the determination of the …
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Rapid reductive dechlorination of environmentally hazardous aromatic compounds and pesticides
… (PCBs), pentachlorophenol (PCP), p,p'-DDE and Toxaphene, have been widely used in industry and agriculture for more than fifty years. Although they have served their purpose very effectively and at low cost, many of these compounds have been banned in the United States due to their persistence …
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Ecological and Trophic Distribution of Pesticides in Lack Poinsett, South Dakota
… heptachlor epoxide, lindane, methoxychlor, and toxaphene were determined by gas chromatography and thin-layer chromatography. DDT and its metabolites, DDD and DDE, were the highest residues detected in all trophic levels examined. Heptachlor, heptachlor epoxide, aldrine, dieldrin, and lindane …
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Treatability of emerging contaminants in wastewater treatment plants during wet weather flows
… hexachlorocyclopentadiene, methoxychlor, and toxaphene. As expected, not all compounds were quantified in the samples, with many being below the detection limits.