background level
Oxford Dictionary of Geography:
Top
background level
The naturally occurring level of pollution or radiation in the environment, against which the human input can be measured.
Related Videos:
Top
background level
Post a question - any question - to the WikiAnswers community:
Copyrights:
Oxford Dictionary of Geography
A Dictionary of Geography. Copyright © Susan Mayhew 1992, 1997, 2004. All rights reserved.
Read more
Mentioned in
phosphate analysis
(in archaeology)
Dulcimer Dimensions
(Album by No Strings Attached)
noise reduction
(engineering acoustics)
Dance Machine
(2008 Reality Show TV Series)
» More