Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16740
Total Phosphorus Loads for Selected Tributaries to Sebago Lake, Maine Total Phosphorus Loads for Selected Tributaries to Sebago Lake, Maine
The streamflow and water-quality datacollection networks of the Portland Water District (PWD) and the U.S. Geological Survey (USGS) as of February 2000 were analyzed in terms of their applicability for estimating total phosphorus loads for selected tributaries to Sebago Lake in southern Maine. The long-term unit-area mean annual flows for the Songo River and for small, ungaged...
Authors
Glenn A. Hodgkins
Effects of Pumping on Ground-Water Flow Near Water-Supply Wells in the Lower Potomac-Raritan-Magothy Aquifer, Pennsauken Township, Camden County, New Jersey Effects of Pumping on Ground-Water Flow Near Water-Supply Wells in the Lower Potomac-Raritan-Magothy Aquifer, Pennsauken Township, Camden County, New Jersey
Since the 1970's, hexavalent chromium has been detected in concentrations as great as 1.0 milligram per liter in wells at the Puchack well field operated by the Camden City Department of Utilities, Water Division (Water Department), forcing the Water Department to progressively remove five of its six wells from service between 1975 and 1988. The wells in the Puchack well field range in...
Authors
Richard L. Walker
The pollinators: native and naturalized The pollinators: native and naturalized
No abstract available.
Authors
H. S. Ginsberg
Ecotoxicology of Wild Mammals Ecotoxicology of Wild Mammals
An international group of 32 scientists has critically reviewed the scientific literature on exposure and effects of environmental contaminants in wild mammals. The underlying theme of this text is encompassed by the following four questions: What exactly do we know about environmental contaminants in mammals? What are the commonalities and differences between mammal orders/species in...
Nitrogen Nitrogen
US ammonia production in 2000 declined by about 7% from 1999. The largest decline occurred in the second half of the year. High natural gas prices caused many plants to close or curtail production near the end of the year. By year-end, about one-third of the US ammonia production capacity was shut down.
Authors
D.A. Kramer
Fluorspar Fluorspar
A general overview of the fluorspar industry is provided. The U.S. had no reported mine production in 2000. Imports, sales from the U.S. National Defense Stockpile, and small amounts of synthetic fluorspar met domestic fluorspar needs. According to the U.S. Geographical Survey, 509 kt of fluorspar was consumed domestically.
Authors
M. Miller
Kaolin Kaolin
Part of the 2000 annual review of the industrial minerals sector. A general overview of the kaolin industry is provided. In 2000, production of kaolin was estimated to be 8.87 Mt, which is less than the amount produced in 1999. Domestic sales of kaolin decreased in 2000, with sales of kaolin for paper filler applications continuing to drop.
Authors
R.L. Virta
Monterey Bay marine sanctuary geological processes and framework Monterey Bay marine sanctuary geological processes and framework
No abstract available.
Authors
Michael E. Field
Book review: Birds of Delaware Book review: Birds of Delaware
Located along Delaware Bay and the Atlantic coast, the state of Delaware’s significance for bird conservation has been well established for decades. The extensive tidal habitats and marshes bordering Delaware Bay host shorebird and waterbird populations of hemispheric importance, and protecting these populations has become an urgent conservation priority in recent years. Other habitats...
Authors
Bruce G. Peterjohn
Of cranes and men: Reintroduction of cranes to a migratory pathway - Part I Of cranes and men: Reintroduction of cranes to a migratory pathway - Part I
No abstract available.
Authors
Glenn H. Olsen