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Unformatted text preview: Natural Variability in Lake pH on Seasonal, Interannual and Decadal Time Scales: Implications for Assessment of Human Impact , Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences. 2008. 3. Environmental Protection Agency. Effects of Acid Rain , last updated on June 8, 2007, from http://www.epa.gov/acidrain/effects/index.html . 4. Ophardt, Charles. Acid Lake Effects , updated on 2003, from http://www.elmhurst.edu/~chm/vchembook/195lakeeffects.html ....
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