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Full-Text Articles in Physical Sciences and Mathematics
Atmospheric Input Of Polycyclic Aromatic Hydrocarbons To The Sea Surface Microlayer, Lino J. Gallo
Atmospheric Input Of Polycyclic Aromatic Hydrocarbons To The Sea Surface Microlayer, Lino J. Gallo
Dissertations, Theses, and Masters Projects
Atmospheric input of polycyclic aromatic hydrocarbons (PAH) to water was studied and the effects of sea surface microlayer (SSM) determined. The York River system and the Perrin River areas were monitored with a drum skimmer and a high volume air sampler. Experiments were conducted in the laboratory under controlled conditions. The SSM extracted vapor phase PAH of low molecular weight from the air, and there, aromatic compounds went from dissolved into particulate phase very rapidly. Water covered with a natural SSM received much less atmospheric input of PAH than water without SSM in a given period of time. Henry's law …
Frna Coliphages As A Viral Indicator Of Sewage Pollution In An Estuary, David Miller Boyd
Frna Coliphages As A Viral Indicator Of Sewage Pollution In An Estuary, David Miller Boyd
Dissertations, Theses, and Masters Projects
No abstract provided.
Effects Of Low Dissolved Oxygen On The Macrobenthos Of The Lower Rappahannock River, Chesapeake Bay, Roberto Javier Llanso
Effects Of Low Dissolved Oxygen On The Macrobenthos Of The Lower Rappahannock River, Chesapeake Bay, Roberto Javier Llanso
Dissertations, Theses, and Masters Projects
The lower Rappahannock River, a subestuary of the Chesapeake Bay, is affected by seasonal low dissolved oxygen events that are intermittent and vary in intensity. Overall, macrobenthic abundance and species number were low, decreasing towards the channel and upriver, where dissolved oxygen concentrations were lowest. Mortality of macrobenthos in early summer was attributed to hypoxia. Species abundances and number declined with the onset of hypoxia, and did not recover in the deep channel until the fall. Tolerance of macrobenthos to hypoxia appeared to be species-specific. Recruitment of hesionid polychaetes occurred in summer during normoxia, but mortality followed during hypoxia, suggesting …