INVESTIGATING CONTROLS ON NITROUS OXIDE DISTRIBUTIONS AND AIR-SEA FLUX IN SHALLOW TIDAL WATERS USING AN EFFICIENT, NONTOXIC SAMPLING METHOD

dc.contributor.advisorTesta, Jeremy Men_US
dc.contributor.authorHobbs, Edward Andrewen_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2020-07-13T05:30:15Z
dc.date.available2020-07-13T05:30:15Z
dc.date.issued2020en_US
dc.description.abstractNitrous oxide (N2O) is a potent greenhouse gas that is naturally produced as a byproduct of nitrogen cycling. Eutrophication elevates nitrogen availability and enhances low-oxygen conditions, thus altering nitrogen cycling and associated N2O availability, but a knowledge gap persists regarding controls on N2O across estuarine environments. I studied three adjacent and nutrient-rich tidal tributaries of the Patapsco River (MD), one of which has engineered aeration (Rock Creek), to quantify how aeration and alterations to oxygen availability and nitrogen cycling will impact N2O production. In all creeks, N2O concentrations were above atmospheric levels and served as a source of N2O to the atmosphere. Oxygen and nitrate availability were most associated with variations in N2O concentrations, and N2O concentrations and air-water fluxes were highest in Rock Creek, especially during summer under non-aerated, but moderately oxygenated conditions. These new data help broaden our understanding of N2O cycling, availability, and distribution within estuarine ecosystems.en_US
dc.identifierhttps://doi.org/10.13016/79rt-e4i4
dc.identifier.urihttp://hdl.handle.net/1903/26216
dc.language.isoenen_US
dc.subject.pqcontrolledEnvironmental scienceen_US
dc.subject.pquncontrolledaerationen_US
dc.subject.pquncontrolledfluxen_US
dc.subject.pquncontrolledmercuric chlorideen_US
dc.subject.pquncontrolledmethods developmenten_US
dc.subject.pquncontrollednitrous oxideen_US
dc.titleINVESTIGATING CONTROLS ON NITROUS OXIDE DISTRIBUTIONS AND AIR-SEA FLUX IN SHALLOW TIDAL WATERS USING AN EFFICIENT, NONTOXIC SAMPLING METHODen_US
dc.typeThesisen_US

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