Environmental Performance and Sustainability of Bioretention Cells

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dc.contributor.advisorDavis, Allen Pen_US
dc.contributor.authorJones, Philip Sumneren_US
dc.contributor.departmentCivil Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2009-07-03T05:38:00Z
dc.date.available2009-07-03T05:38:00Z
dc.date.issued2009en_US
dc.description.abstractBioretention cells use vegetation and soil media for source control of urban stormwater runoff, alleviating waterway impairment. Environmental performance of two cells was investigated. First, a cell capturing road runoff was monitored for one year. At a second cell, media were sampled to measure lifetime metal accumulation and evaluate the environmental, health, and maintenance implications of metal sequestration. Monitoring found high metal and suspended solids removal, generally poor nutrient performance, and chloride export. Runoff volume and peak flow rate reduction occurred for small storm events. For larger events, outflow volume consistently exceeded inflow because of unique site conditions. Lead, copper, and zinc media concentrations in the second cell were elevated but well below cleanup thresholds. Metals were strongly bound to bioretention media and largely immobile; lead bioavailability was comparable to generic soil estimates. Most metal accumulation was near the inflow point in the top 3 to 12 cm of media.en_US
dc.format.extent6050693 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/9324
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Environmentalen_US
dc.subject.pqcontrolledEngineering, Civilen_US
dc.subject.pqcontrolledEnvironmental Sciencesen_US
dc.subject.pquncontrolledBioretentionen_US
dc.subject.pquncontrolledHeavy metalsen_US
dc.subject.pquncontrolledMediaen_US
dc.subject.pquncontrolledMonitoringen_US
dc.subject.pquncontrolledRain gardenen_US
dc.subject.pquncontrolledSamplingen_US
dc.titleEnvironmental Performance and Sustainability of Bioretention Cellsen_US
dc.typeThesisen_US

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