ESM202Lecture_Trace_Elements_2008

ESM202Lecture_Trace_Elements_2008 - ESM 202 Trace Elements...

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  1 ESM 202 Trace Elements  in the  Environment
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    Abundant Elements Soils: O H Si Al Fe C Ca K Na Mg Ti Crust: O H Si Al Fe Ca M K Ti P Ocean: O H Cl Na Mg S K Ca Br C Trace elements: concentration in a solid phase ≤ 100 mg/kg (Sposito, The Chemistry of Soils, 1989)
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  3
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trace element
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  5 Trace Elements
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  7 Drinking Water Standards
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    Trace Elements
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  9 Trace Elements
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    Trace Elements
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  11 Trace Elements
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  12 Trace Elements
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  13 Trace Elements Metals and other inorganic compounds  are used extensively in industry Rate of anthropogenic emissions is  typically much greater than the natural  cycling of these elements Concentration levels near industrial  operations can be orders of magnitude  greater than background
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  14 Trace Elements
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  15 Trace Elements Coal burning releases large amounts of trace  elements to the environment, mostly in “fly  ash” Fly ash is particularly enriched in metals,  particularly V, Pb, Cu, Zn, As, Cr, Se, Ni, Cd A typical 1000 MW power plant produces  270,000 tons of fly ash per year
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    Trace Elements
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  17 Trace Elements
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This note was uploaded on 08/06/2008 for the course ESM 202 taught by Professor Keller during the Winter '08 term at UCSB.

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ESM202Lecture_Trace_Elements_2008 - ESM 202 Trace Elements...

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