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 7 of 7 for “"Sulfate and nitrate"”.
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Dry deposition of sulfate and nitrate to soybeans and corn
… of the total mass loadings of acidic pollutants and acid precursors to agricultural systems. However, because of the relative intractability of measurement of dry deposition fluxes, little work has been done to directly quantify these inputs of pollutants. Foliar surface sampling methods were …
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Sequential sampling and analysis of precipitation in the Shenandoah Valley
This research reports the establishment and operation of a developmental sequential rain sampler in the Shenandoah Valley. It also reports the results obtained from the rainwater analysis precipitation at and this the determination rural site is of whether the acidic or not. Rainwater collection …
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Ionic balance and growth of carnations
… organic acid content, (C-A), of the plant and the level of the other ions in the plant tissue. The optimum (C-A) content for the carnation was 1700-1900 milligram equivalents per kilogram dry matter. There was a highly significant correlation between increase in (C-A) content and plant …
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Uranium in groundwater and its potential as a natural contaminant in the Cherokee Basin, southeastern Kansas
Safe, easily accessible, clean, and potable water is critical for public health. The ingestion of radioactive nuclides such as uranium has been associated with renal and cancer-related issues in humans. Many previous studies have focused on anthropogenic uranium contamination. Here, we examined the …
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Investigation of the Chemical and Physical Properties of Asian Dust and Asian Pollution Transpacific Transport During the Intex-B Field Campaign
… during INTEX-B were analyzed by using chemical and physical in situ measurements taken by instruments on board a NASA DC-8 aircraft during the INTEX-B (2006) field campaign. From this analysis, the three following scientific questions about the nature of the Asian dust events were answered: (1) …
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Developing Critical Loads and Dynamic Critical Loads for Acidification for Watersheds in the Adirondack region of New York and Great Smoky Mountain National Park (GRSM)
<p>Critical loads (CLs) and dynamic critical loads (DCLs) are important tools for the management of ecosystems that are impacted by high sulfate, nitrate and ammonium deposition. In this study, a biogeochemical model (PnET-BGC) was applied to 20 watersheds in the Adirondack region and 12 watersheds …
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Metagenomic Analysis of Spring and Stream Waters in the Chesapeake and Ohio Canal National Historical Park
… be climate change, shortage of energy supplies, and pollution of the environment. A large variety of contaminants are susceptible to be released in the environment from households and from agricultural and industrial activities. During the last decades, physical, chemical, and biological …