James McKinnell's Map Catalog
Thursday, July 14, 2011
25. Isopleth
http://www.stonelions.com/Dayhoit.htm
Isopleths join areas of equal value. This isopleth map shows concentrations of trichloroethylene (TCE) in the river valley of Dayhoit, Kentucky. This can be used to track pollution, determine its sources, and help design a way to prevent it.
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