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 4 of 4 for “"episodic exposure"”.
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Effects on Survival, Reproduction and Growth of Ceriodaphnia dubia following Single Episodic Exposure to Copper or Cadmium
Effects of episodic exposures have gained attention as the regulatory focus of the Clean Water Act has shifted away from continuous-flow effluents. Standardized laboratory toxicity tests require that exposure be held constant. However, this approach may not accurately predict organism responses in …
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Pansteatitis in African sharptooth catfish, Clarias gariepinus (Burchell), in the Kruger National Park, South Africa
… as monitoring tools, probably because of the episodic exposure to oxidative stress and the chronic nature of the condition. Pansteatitis-affected catfish, kept in an experimental pond for 11 months after the inciting nutritional cause had been removed, retained steatitis lesions almost …
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Investigating Seasonal and Occupational Trends of Five Organophosphate Pesticides in House Dust in the Lower Yakima Valley, WA
… pesticides that have become widely used. Adult exposure routes and health effects of OPs have been researched in detail. However, data characterizing chronic low–dose childhood exposures to pesticide sources, such as those that may occur in indirect outdoor and indoor environmental pathways, is …
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Quantification of pyrethroid and organophosphate metabolites in hair and urine samples of rural children from the Western Cape, South Africa using the two-dimensional gas chromatography-mass spectrometry
… matrices is essential to identify and minimize exposure risks. However, existing chromatography monitoring systems encounter challenges such as sensitivity and matrix effects when quantifying these compounds in complex biological samples. This study evaluated a two-dimensional gas chromatography …