Maps which measure the pH in precepitation in the us are call Isopeth maps. This map is from the epa and shows the levels oh pH in the rainfall across the entire country.http://www.epa.gov/CASTNET/deposition.html
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Maps which measure the pH in precepitation in the us are call Isopeth maps. This map is from the epa and shows the levels oh pH in the rainfall across the entire country.
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