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dc.contributor.advisorTorrents, Albaen_US
dc.contributor.authorPeterson, Michael Claytonen_US
dc.date.accessioned2005-10-11T10:30:58Z
dc.date.available2005-10-11T10:30:58Z
dc.date.issued2005-08-03en_US
dc.identifier.urihttp://hdl.handle.net/1903/2940
dc.description.abstractArsenic is a potentially toxic contaminant of concern even at relatively low concentrations in the environment. The complex chemistry of arsenic in the environment is influenced by a variety of chemical and physical factors. The presence of iron minerals is believed to be particularly important to arsenic mobility. Extraction methods were used to evaluate arsenic and iron in a variety of contaminated materials including mine tailings and soils. The contaminated materials were also evaluated for arsenic mobilization in batch experiments while pH and redox potential were monitored. A relationship between arsenic and iron was observed to occur in most, but not all, of the arsenic-contaminated samples. The most mobile fractions of arsenic were shown to be highly correlated with a simulated human oral bioavailable extraction method in the samples evaluated. The mobilization of arsenic by the simulated bioavailable extraction method was associated with a negligible mobilization of iron.en_US
dc.format.extent1215097 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleCharacterization and Mobilization of Arsenic in Various Contaminated Materialsen_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentCivil Engineeringen_US
dc.subject.pqcontrolledEngineering, Environmentalen_US
dc.subject.pquncontrolledarsenicen_US
dc.subject.pquncontrolledsequential extractionen_US
dc.subject.pquncontrolledsimulated human oral bioavailabilityen_US
dc.subject.pquncontrolledsoilen_US
dc.subject.pquncontrolledsedimenten_US
dc.subject.pquncontrolledmine tailingsen_US


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