Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Data Quality Objectives and Criteria for Basic Information, Acceptable Uncertainty, and Quality-Assurance and Quality-Control Documentation Data Quality Objectives and Criteria for Basic Information, Acceptable Uncertainty, and Quality-Assurance and Quality-Control Documentation
The Federal Highway Administration and State transportation agencies have the responsibility of determining and minimizing the effects of highway runoff on water quality; therefore, they have been conducting an extensive program of water-quality monitoring and research during the last 25 years. The objectives and monitoring goals of highway runoff studies have been diverse, because the...
Authors
Gregory E. Granato, Fred G. Bank, Patricia A. Cazenas
Why aren't there more Atlantic salmon (Salmo salar)? Why aren't there more Atlantic salmon (Salmo salar)?
No abstract available.
Authors
D.L. Parrish, R.J. Behnke, S.R. Gephard, S. D. McCormick, G.H. Reeves
Oceanic methane hydrate: The character of the Blake Ridge hydrate stability zone, and the potential for methane extraction Oceanic methane hydrate: The character of the Blake Ridge hydrate stability zone, and the potential for methane extraction
Oceanic methane hydrates are mineral deposits formed from a crystalline 'ice' of methane and water in sea-floor sediments (buried to less than about 1 km) in water depths greater than about 500 m; economic hydrate deposits are probably restricted to water depths of between 1.5 km and 4 km. Gas hydrates increase a sediment's strength both by 'freezing' the sediment and by filling the pore...
Authors
M.D. Max, William P. Dillon
Sampling protocols for vertebrates Sampling protocols for vertebrates
No abstract available at this time
Authors
R. Ross, R. Bennett
Walden Pond, Massachusetts: Environmental setting and current investigations Walden Pond, Massachusetts: Environmental setting and current investigations
Introduction Walden Pond, in Concord, Massachusetts, is famous among lakes because of its unique social history. Walden was the setting for American naturalist Henry David Thoreau's well-known essay 'Walden; or, Life in the Woods,' first published in 1854. Thoreau lived and wrote at Walden Pond from July 1845 to September 1847. In 'Walden,' Thoreau combined highly admired writing on
Authors
John A. Colman, Marcus C. Waldron
Surface-water quality information in Connecticut : answering key scientific and management questions Surface-water quality information in Connecticut : answering key scientific and management questions
No abstract available.
Authors
Elaine C. Todd Trench, Steven S. Kiesman
Carbon Dioxide Control in Intensive Aquaculture: Version 2.1: User's Guide and Source Code Carbon Dioxide Control in Intensive Aquaculture: Version 2.1: User's Guide and Source Code
No abstract available at this time
Authors
B.J. Vinci, M.B. Timmons, S.T. Summerfelt, B.J. Watten
Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, middle Atlantic Coast Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, middle Atlantic Coast
Existing data on base-flow and groundwater nitrate loads were compiled and analyzed to assess the significance of groundwater discharge as a source of the nitrate load to nontidal streams of the Chesapeake Bay watershed. These estimates were then related to hydrogeomorphic settings based on lithology and physiographic province to provide insight on the areal distribution of ground-water...
Authors
L. Joseph Bachman, Bruce D. Lindsey, John W. Brakebill, David S. Powars
Fluorspar Fluorspar
The state of the fluorspar industry worldwide for 1997 is discussed. The U.S. had no reported mining of fluorspar in 1997. Reported consumption in the U.S. decreased to 490 kt. U.S. imports, mainly from China, totaled 533 kt. Exports, synthetic fluorspar production, and industry developments are also reviewed.
Authors
M. Miller
Nickel Hazards to Fish, Wildlife and Invertebrates: A Synoptic Review Nickel Hazards to Fish, Wildlife and Invertebrates: A Synoptic Review
This account is a selective review and synthesis of the technical literature on nickel and nickel salts in the environment and their effects on terrestrial plants and invertebrates, aquatic plants and animals, avian and mammalian wildlife, and other natural resources, The subtopics include nickel sources and uses; physical, chemical, and metabolic properties of nickel; nickel...
Authors
R. Eisler
Radon-222 in the ground water of Chester County, Pennsylvania Radon-222 in the ground water of Chester County, Pennsylvania
Radon-222 concentrations in ground water in 31 geologic units in Chester County, Pa., were measured in 665 samples collected from 534 wells from 1986 to 1997. Chester County is underlain by schists, gneisses, quartzites, carbonates, sandstones, shales, and other rocks of the Piedmont Physiographic Province. On average, radon concentration was measured in water from one well per 1.4...
Authors
Lisa A. Senior
Identification of water-bearing zones by the use of geophysical logs and borehole television surveys, collected February to September 1997, at the Former Naval Air Warfare Center, Warminster, Bucks County, Pennsylvania Identification of water-bearing zones by the use of geophysical logs and borehole television surveys, collected February to September 1997, at the Former Naval Air Warfare Center, Warminster, Bucks County, Pennsylvania
Between February 1997 and September 1997, 10 monitor wells were drilled near the site of the former Naval Air Warfare Center, Warminster, Bucks County, Pa., to monitor water levels and sample ground-water contaminants in the shallow, intermediate, and deep water-bearing zones. The sampling will determine the horizontal and vertical distribution of contaminated ground water migrating from...
Authors
Randall W. Conger