|
NRCS
|
Natural Resources Conservation Service
|
|
NURE
|
National Uranium Resource Evaluation
|
|
OECD
|
Organisation for Economic Co-Operation and Development
|
|
OR
|
odds ratio
|
|
OSHA
|
Occupational Safety and Health Administration
|
|
P2O5
|
phosphorus pentoxide
|
|
PAl
|
peraluminous magmas
|
|
Pb
|
lead
|
|
pCi/L
|
picocuries per liter (1 × 10–12 Ci/L)
|
|
PEL
|
permissible exposure limit
|
|
PNEC
|
predicted no-effect concentration
|
|
ppm
|
parts per million
|
|
PR
|
Prognosticated Resources
|
|
Ra
|
radium
|
|
RAR
|
Reasonably Assured Resources
|
|
RCRA
|
Resource Conservation and Recovery Act
|
|
REE
|
rare earth elements
|
|
REL
|
recommended exposure limit
|
|
rem
|
roentgen equivalent in man (1 rem = 0.01 Sievert)
|
|
Rn
|
radon
|
|
RR
|
relative risk
|
|
SDWA
|
Safe Drinking Water Act
|
|
SMR
|
standardized mortality ratio
|
|
SR
|
Speculative Resources
|
|
Sv
|
Sievert
|
|
Ta
|
tantalum
|
|
TAG
|
technical assistance grant
|
|
TENORM
|
technologically enhanced naturally occurring radioactive materials
|
|
Th
|
thorium
|
|
ThO2
|
thorianite (thorium oxide)
|
|
Ti
|
titanium
|
|
tU
|
metric tonnes uranium
|
|
U
|
uranium
|
|
USDOE
|
U.S. Department of Energy
|
|
USDOT
|
U.S. Department of Transportation
|
|
USEIA
|
U.S. Energy Information Administration
|
