sources and concentrations of mercury and selenium in compartments within the las vegas wash during a period of rapid change.the las vegas wash, which drains the las vegas valley watershed and provides the second largest inflow to lake mead, is being dramatically altered with erosion control structures and wetland restoration efforts. the impact of these changes on the cycling and distribution of hg and se is of particular interest because of their tendency to bioaccumulate and because of a lack of information on these contaminants in the wash. in this study, we determined concentrations of hg and se in surface water ...200516418906
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