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dc.contributor.author Ruhl, Laura en_US
dc.contributor.author Vengosh, Avner en_US
dc.contributor.author Dwyer, Gary en_US
dc.date.accessioned 2011-06-21T17:25:55Z
dc.date.available 2011-06-21T17:25:55Z
dc.date.issued 2010 en_US
dc.identifier.citation Ruhl,Laura;Vengosh,Avner;Dwyer,Gary S.;Hsu-Kim,Heileen;Deonarine,Amrika. 2010. Environmental Impacts of the Coal Ash Spill in Kingston, Tennessee: An 18-Month Survey. Environmental science & technology 44(24): 9272-9278. en_US
dc.identifier.issn 0013-936X en_US
dc.identifier.uri http://hdl.handle.net/10161/4029
dc.description.abstract An 18 month investigation of the environmental impacts of the Tennessee Valley Authority (TVA) coal ash spill in Kingston, Tennessee combined with leaching experiments on the spilled TVA coal ash have revealed that leachable coal ash contaminants (LCACs), particularly arsenic, selenium, boron, strontium, and barium, have different effects on the quality of impacted environments. While LCACs levels in the downstream river water are relatively low and below the EPA drinking water and ecological thresholds, elevated levels were found in surface water with restricted water exchange and in pore water extracted from the river sediments downstream from the spill. The high concentration of arsenic (up to 2000 mu g/L) is associated with some degree of anoxic conditions and predominance of the reduced arsenic species (arsenite) in the pore waters. Laboratory leaching simulations show that the pH and ash/water ratio control the LCACs' abundance and geochemical composition of the impacted water. These results have important implications for the prediction of the fate and migration of LCACs in the environment, particularly for the storage of coal combustion residues (CCRs) in holding ponds and landfills, and any potential CCRs effluents leakage into lakes, rivers, and other aquatic systems. en_US
dc.language.iso en_US en_US
dc.publisher AMER CHEMICAL SOC en_US
dc.relation.isversionof doi:10.1021/es1026739 en_US
dc.subject kentucky power-plant en_US
dc.subject fly-ash en_US
dc.subject trace-elements en_US
dc.subject combustion residues en_US
dc.subject heavy-metals en_US
dc.subject behavior en_US
dc.subject ecosystems en_US
dc.subject toxicity en_US
dc.subject disposal en_US
dc.subject mobility en_US
dc.subject engineering, environmental en_US
dc.subject environmental sciences en_US
dc.title Environmental Impacts of the Coal Ash Spill in Kingston, Tennessee: An 18-Month Survey en_US
dc.title.alternative en_US
dc.description.version Version of Record en_US
duke.date.pubdate 2010-12-15 en_US
duke.description.endpage 9278 en_US
duke.description.issue 24 en_US
duke.description.startpage 9272 en_US
duke.description.volume 44 en_US
dc.relation.journal Environmental science & technology en_US

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