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open access

Carbon-14 Bomb Pulse Dating

Description: Abstract: Atmospheric testing of nuclear weapons during the 1950s and early 1960s doubled the concentration of carbon-14 in the atmosphere and created a pulse that labeled everything alive since 1955 as carbon moved up the food chain. The variation in carbon-14 concentration in time is well-documented and can be used to chronologically date all biological materials since the mid-1950s.
Date: June 15, 2012
Creator: Buchholz, Bruce A.
open access

Radiocarbon Dating

Description: Abstract: Radiocarbon dating can be used to determine the age of objects that contain components that were once alive. In the case of human remains, a radiocarbon date can distinguish between a crime scene and an archaeological site. Documents, museum artifacts and art objects can be dated to determine if their age is correct for the historical context. A radiocarbon date does not confirm authenticity, but it can help identify a forgery.
Date: May 25, 2012
Creator: Buchholz, Bruce A.
open access

Lead-Cooled Fast Reactor (LFR) Design: Safety, Neutronics, Thermal Hydraulics, Structural Mechanics, Fuel, Core, and Plant Design

Description: Fifth chapter from "A Compendium of Reactor Technology" discussing the history and design of lead-cooled fast reactors in nine sections: Lead-cooled Fast Reactor (LFR) Development, Design Criteria and General Specifications, Neutronics, Lead Properties, Compatibility of Structural Materials with Lead, Core, Reactor System, Decay Heat Removal System, and Nuclear Island.
Date: February 22, 2010
Creator: Smith, Craig; Cinotti, L.; Artoli, C. & Grasso, G.
open access

Chapter 4: Management Measures for Urban Areas

Description: This chapter addresses six major categories of sources of urban non point pollution that affect surface waters. Each category is given a management measure.
Date: January 1993
Creator: United States. Environmental Protection Agency.
open access

TRI National Analysis 2013: Where You Live

Description: Chapter from the national analysis that looks at toxic chemical disposal of other releases at various geographical levels throughout the United States.
Date: April 2015
Creator: United States. Environmental Protection Agency.
open access

Chapter 3. Management Measures for Forestry

Description: A chapter which specifies management measures to protect coastal waters from silvicultural sources of non point pollution. Contains ten management measures that address various phases of forestry operations.
Date: January 1993
Creator: United States. Environmental Protection Agency.
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