These definitions are from the United States Department of Energy (DOE) Oak Ridge Operations Office (ORO) Environmental Restoration/Waste Management Risk Assessment Program staff and affiliates and the following active web sources:

http://www.sra.org/glossary.htm
http://www.epa.gov/docs/OCEPAterms/
http://www.nrc.gov/reading-rm/basic-ref/glossary.html
http://www.bae.ncsu.edu/bae/programs/extension/publicat/wqwm/ebae144_90.html
http://www.etd.ameslab.gov/etd/library/glossary/glossaryintro.html
http://www.epa.gov/iris/help_gloss.htm
http://www.uilondon.org/gloss.html

If identical terms were identified from multiple sources, the definition from ORO was given priority then the definition that best suited the ORO was used. Not all terms were included from each of the above www sites. Some definitions from the www sites have been altered to better suit the ORO.

The following sites have lists of acronyms used in the risk assessment and environmental restoration fields:

http://www.epa.gov/docs/OCEPAterms/
http://www.etd.ameslab.gov/etd/library/acronyms/acronym.html