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Full-Text Articles in Physical Sciences and Mathematics
Elizabeth River Tributyltin Monitoring Program 1999-2006 : A Report To The Virginia Department Of Environmental Quality Tidewater Regional Office, Michael A. Unger
Elizabeth River Tributyltin Monitoring Program 1999-2006 : A Report To The Virginia Department Of Environmental Quality Tidewater Regional Office, Michael A. Unger
Reports
The purpose of this project was to implement a study in 1999/2000 that would document the current levels of tributyltin (TBT) in the Elizabeth River and provide baseline data for future efforts to determine the trend of TBT concentrations found in the Elizabeth River Watershed. Subsequent years of sampling have documented spatial and temporal trends in TBT and are described in this report.
Can We Predict Joint Effects Of Hypoxia And Metals On Fish Survival?, Michael C. Newman
Can We Predict Joint Effects Of Hypoxia And Metals On Fish Survival?, Michael C. Newman
VIMS Books and Book Chapters
Fish are suddenly exposed to hypoxic conditions during diverse events such as seiche- or turnover-related water movements, bottom water release from reservoirs, ice-over of eutrophic arctic lakes, and rapid shifts in respiration: photosynthesis associated with cultural eutrophication. In each case, chemical equilibria established under hypoxic conditions that result in metal dissolution and accumulation suddenly shift toward chemical equilibria of oxic conditions. Critical changes in speciation include those determining the free ion activity that, as expressed by the Free Ion Activity Model (FIAM), is often the most bioactive form of a dissolved metal. Metal phase can also change rapidly and, in …
Elizabeth River Tbt Monitoring Report On Tbt Methodology Detection Limit, Precision And Linearity, Michael A. Unger
Elizabeth River Tbt Monitoring Report On Tbt Methodology Detection Limit, Precision And Linearity, Michael A. Unger
Reports
The purpose of this project was to determine the accuracy, precision, linearity and Method Detection Limit (MDL) for tributyltin (TBT) analytical techniques available at the Virginia Institute of Marine Science prior to implementing an environmental monitoring program in the Elizabeth River, Virginia. This precursory work is to document the ability of analytical techniques to accurately detect TBT in ambient water samples at concentrations of 1 ng/L and greater.