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Articles 1 - 13 of 13
Full-Text Articles in Physical Sciences and Mathematics
Toxic Organic Compounds In Surface Sediments From Elizabeth And Patapsco Rivers And Estuaries, Rudolph H. Bieri, Chris Hein, Robert J. Huggett, Philip Shou, Harold Slone, Craig Smith, Chih-Wu Su
Toxic Organic Compounds In Surface Sediments From Elizabeth And Patapsco Rivers And Estuaries, Rudolph H. Bieri, Chris Hein, Robert J. Huggett, Philip Shou, Harold Slone, Craig Smith, Chih-Wu Su
Reports
This study is an extension of a Chespeake Bay-wide analysis of toxic organic substances into the Elizabeth and Patapsco River subestuaries. Twenty-eight surface sediment samples from the.Elizabeth River and 40 surface sediment samples from the Patapsco, were analyzed in detail for the presence of mainly aromatic and polar organic compounds. Approximately 310 distinct compounds were identified by gas chromatography-mass spectrometry in the Elizabeth River samples, and about 480 in the Patapsco. Total aromatic concentrations ranged from 440,000 to 3,100 ppb in the Elizabeth and from 2.7 x 106 to 6100 ppb in the Patapsco. Similar to observation in the.Chesapeake Bay, …
Management Practice Evaluation For Urban Areas In The Hampton Roads Vicinity: A Report To Hampton Roads Water Quality Agency, Gary F. Anderson, Bruce J. Neilson, Donald H. Campbell
Management Practice Evaluation For Urban Areas In The Hampton Roads Vicinity: A Report To Hampton Roads Water Quality Agency, Gary F. Anderson, Bruce J. Neilson, Donald H. Campbell
Reports
Data was collected by the Virginia Institute of Marine Science from study sites in the designated Hampton Roads 208 area, and information from other studies published in the literature were used to examine the change in pollutant loadings brought about by the presence of management practices in urban test watersheds. The focus was on nutrients, BOD, and suspended solids.
Hydrocarbon Fuel Chemistry : Sediment Water Interaction, William G. Macintyre, C. L. Smith, P. O. Defur, C. W. Su
Hydrocarbon Fuel Chemistry : Sediment Water Interaction, William G. Macintyre, C. L. Smith, P. O. Defur, C. W. Su
Reports
The objective of this program was to determine the effect of sediments on aqueous solutions of selected United States Air Force (USAF} hydrocarbon fuels. Effects of sediment type, organic carbon content, pH, temperature and salinity on interaction of dissolved hydrocarbons with sediment were studied. The results of this work can be used to estimate the role of sediment hydrocarbon interaction terms in fate models of aqueous systems, such as the Environmental Protection Agency "EXAMS" model.
The Biogenic Structure Of Lower Chesapeake Bay Sediments : Epa Chesapeake Bay Program Final Report, Karl J. Nilsen, Robert J. Diaz, Linda C. Schaffner, Donald F. Boesch, Rodney Bertelsen, Michel Kravitz
The Biogenic Structure Of Lower Chesapeake Bay Sediments : Epa Chesapeake Bay Program Final Report, Karl J. Nilsen, Robert J. Diaz, Linda C. Schaffner, Donald F. Boesch, Rodney Bertelsen, Michel Kravitz
Reports
No abstract provided.
Seasat Sar Test Of The Virginian Sea Wave Climate Model, John C. Munday Jr., Christopher S. Welch, George R. Mapp
Seasat Sar Test Of The Virginian Sea Wave Climate Model, John C. Munday Jr., Christopher S. Welch, George R. Mapp
Reports
Coastal wave refraction imaged by the Seasat Synthetic Aperture Radar is compared to simulations produced by the Virginian Sea Wave Climate Model. Seasat SAR passes 974 at Cape Hatteras, and 974 and 1404 at Long Island, were examined using OFT and ZTS methods. Results generally confirm the validity of linear wave theory in modeling of shallow-water wave refraction --roughly half the deviations between VSWCM and SAR data for direction and wavelength are within 2 degrees and 10 meters. Convergence of wave orthogonals is found in predicted caustic regions. Available bathymetric data were adequate for the analysis. Some details in the …
Ware River Intensive Watershed Study- Part 1. Nonpoint Source Contributions, Gary F. Anderson, Cindy Bosco, Bruce Neilson
Ware River Intensive Watershed Study- Part 1. Nonpoint Source Contributions, Gary F. Anderson, Cindy Bosco, Bruce Neilson
Reports
Runoff quantity and quality were monitored for row crop, residential and forested lands in the Ware basin for the period of October 1979 to July 1981. Loading rates have been calculated for both baseflow and stormflow contributions at each study site.
A Water Quality Study Of The Northwest River, Virginia, Albert Y. Kuo, Bruce Neilson, Paul V. Hyer
A Water Quality Study Of The Northwest River, Virginia, Albert Y. Kuo, Bruce Neilson, Paul V. Hyer
Reports
The Northwest River is a small, coastal plains river lying to the south of the Hampton Roads metropolitan area. It flows in a southeasterly direction from the Dismal Swamp, its headwaters, to North Carolina where it empties into Currituck Sound. Lunar tides in the river are quite small, but flow reversals due to winds are not uncommon.
Previous studies of the river have evaluated its potential as a drinking water source and the environmental changes that would occur as a result of water withdrawal. The latter concern was primarily that downstream locations would experience higher salinity levels once fresh water …
Monthly Report On The State Of Rivers 1982, Albert Kuo
Monthly Report On The State Of Rivers 1982, Albert Kuo
Reports
Chiefly graphs showing monthly salinity, temperature, dissolved oxygen distributions at slackwater for the James, York, Pamunkey, and Rappahannock Rivers.
1982: June, September, October, November
The Effects Of Atrazine On Zostera Marina In The Chesapeake Bay, Virginia, Carl H. Hershner, Keith B. Ward, Jerome E. Illowsky, Et Al
The Effects Of Atrazine On Zostera Marina In The Chesapeake Bay, Virginia, Carl H. Hershner, Keith B. Ward, Jerome E. Illowsky, Et Al
Reports
This project was designed to assess the effects of agricultural herbicides on submerged aquatic vegetation in the lower Chesapeake Bay. Atrazine was selected for testing because it is the most widely utilized herbicide in the Bay region. Zostera marina was the submerged vegetation studied.
The project began with two surveys. The first survey, conducted in 1979, covered forty eight stations throughout the Virginia portion of the Chesapeake Bay. The survey was designed to indicate typical atrazine loading for the lower Bay. A second survey in 1980 was limited to the Severn River, and was intended to indicate the duration of …
Ware River Intensive Watershed Study - Part 2. Estuarine Receiving Water Quality, Cindy Bosco, Gary F. Anderson, Bruce Neilson
Ware River Intensive Watershed Study - Part 2. Estuarine Receiving Water Quality, Cindy Bosco, Gary F. Anderson, Bruce Neilson
Reports
The Ware River Intensive Watershed Study contains results of runoff from small catchments, instream transport of runoff and the impacts on estuarine water quality, which are contained in two volumes: 1. Nonpoint Source Pollution and 2. Estuarine Receiving Water Quality
Estuarine Studies: The Ware River is a relatively "clean" estuarine system. However, during summer months some of the nutrients, particularly inorganic phosphorous and organic nitrogen, achieve levels associated with moderate enrichment. The Ware is typical of other small tributaries of Chesapeake Bay: nutrient levels are higher at low tide, the estuary is more homogenous laterally than longitudinally, and vertical gradients …
Water Quality Trends In The Northwest River : A Report To The Hampton Roads Water Quality Agency, Bruce J. Neilson
Water Quality Trends In The Northwest River : A Report To The Hampton Roads Water Quality Agency, Bruce J. Neilson
Reports
During the initial 208 studies of the Hampton Roads area, no mathematical model of receiving water quality was applied to the Northwest River. At the request of the City of Chesapeake, the HRWQA P003085-03 work program included tasks leading to development of a water quality model of the Northwest River. Data from field studies conducted in 1980 and 1981 and the math model applied to the river have been presented in a companion volume report (Kuo et al., 1982). This report summarizes the results of model simulations made to determine future water quality conditions and trends.
Baseline Sediment Studies To Determine Distribution, Physical Properties, Sedimentation Budgets And Rates In The Virginia Portion Of The Chesapeake Bay : Final Report, Robert J. Byrne, Carl H. Hobbs Iii, Michael J. Carron
Baseline Sediment Studies To Determine Distribution, Physical Properties, Sedimentation Budgets And Rates In The Virginia Portion Of The Chesapeake Bay : Final Report, Robert J. Byrne, Carl H. Hobbs Iii, Michael J. Carron
Reports
No abstract provided.
A Natural Resources Survey And Habitat Evaluation Of The Willoughby Disposal Area, U.S. Naval Base, Norfolk, Virginia, Walter I. Priest, C. Richard Terman, Willliam Ihle
A Natural Resources Survey And Habitat Evaluation Of The Willoughby Disposal Area, U.S. Naval Base, Norfolk, Virginia, Walter I. Priest, C. Richard Terman, Willliam Ihle
Reports
The purpose of this study is to determine the living natural resources utilizing the U.S. Navy's dredged material disposal area located adjacent to Willoughby Bay in Norfolk, Virginia and to determine the habitat value of this area to these resources.