Journal ArticleDOI
Trace element discharges from coal combustion for power production
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Partition factors have been calculated to describe the distribution of 38 elements between slag, total fly ash, atmospherically emitted fly ash and vapors for a coal fired steam plant.Abstract:
Partition factors have been calculated to describe the distribution of 38 elements between slag, total fly ash, atmospherically emitted fly ash, and vapors for a coal fired steamplant. These factors have been generalized to other types of boilers, to calculate the annual U.S. discharge of trace elements due to coal combustion for power production. The magnitude of trace element mobilization by coal combustion is compared with industrial consumption of trace elements, and with estimates of their natural mobilization by weathering. Elemental flows due to coal consumption are never less than 1.5% of their weathering mobilization, and coal combustion introduces As, Co, Cu, Fe, Hg, Mo, Ni, Pb, Sc, Se, U, V, and Zn into the environment at rates comparable to their rates of introduction by weathering.read more
Citations
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Antimony in the environment: a review focused on natural waters: I. Occurrence
TL;DR: Antimony is ubiquitously present in the environment as a result of natural processes and human activities as discussed by the authors and is considered to be priority pollutants interest by the USEPA and the EU.
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Antimony in the environment: A review focused on natural waters. III. Microbiota relevant interactions
TL;DR: The interactions of antimony with microbiota are discussed in relation to its fate in natural waters, and the following aspects: occurrence in microbiota, uptake transport mechanisms, pathways of Sb(III) removal from cells involved in antimony tolerance, oxidation and reduction of Antimony by living organisms, phytochelatin induction and biomethylation are covered.
Journal ArticleDOI
Trace element inputs into soils by anthropogenic activities and implications for human health.
TL;DR: The possible relations found between some specific soil trace elements, such as Cd, Se, As and others, and cancer incidence and mortality, and diffusion of other important human diseases are reviewed.
Journal ArticleDOI
Guidelines for evaluating selenium data from aquatic monitoring and assessment studies.
TL;DR: The most precise way to evaluate potential reproductive impacts to adult fish and aquatic bird populations is to measure selenium concentrations in gravid ovaries and eggs, which integrates waterborne and dietary exposure, and allows an evaluation based on the most sensitive biological endpoint.
Journal ArticleDOI
Arsenic, selenium, boron, lead, cadmium, copper, and zinc in naturally contaminated rocks: A review of their sources, modes of enrichment, mechanisms of release, and mitigation strategies.
Carlito Baltazar Tabelin,Toshifumi Igarashi,Mylah Villacorte-Tabelin,Ilhwan Park,Einstine M. Opiso,Mayumi Ito,Naoki Hiroyoshi +6 more
TL;DR: This review summarized all available studies in the literature about the factors and processes crucial in the enrichment, release, and migration of the most commonly encountered hazardous and toxic elements in naturally contaminated geological materials to focus on naturally contaminated rocks.
References
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Journal ArticleDOI
Toxic Trace Elements: Preferential Concentration in Respirable Particles
TL;DR: The toxic trace elements arsenic, antimony, cadmium, lead, selenium, and thallium were found to be most concentrated in the smallest respirable particles emitted from coal-fired power plants.
Journal ArticleDOI
Fossil fuel combustion and the major sedimentary cycle.
K.K. Bertine,Edward D. Goldberg +1 more
TL;DR: The combustion of the fossil fuels coal, oil, and lignite potentially can mobilize many elements into the atmosphere at rates, in general, less than but comparable to their rates of flow through natural waters during the weathering cycle.
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Pathways of thirty-seven trace elements through coal-fired power plant
David H. Klein,Anders W. Andren,Joel A. Carter,Jeul F. Emery,Cyrus Feldman,William Fulkerson,William S. Lyon,Jack C. Ogle,Yair Talmi +8 more
TL;DR: In this paper, coal, fly ash, slag, and combustion gases from a large cyclone-fed power plant 870 MW (e) were analyzed for a suite of elements.