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acid deposition control acid deposition standard Acid Precipitation Awareness Acid Rain Foundation agricultural air pollutants Appendix appropriate assessment Boundary Waters Canoe buffering capacity Canoe Area Wilderness cause cooperation damage Department of Education Department of Natural deposition control plan developing dioxide and nitrogen dry deposition education on acid effects of acid environment Environmental Education Board Figure fish forest fossil fuels groundwater Hamilton Smith Lake trout materials on acid Minnesota Department Minnesota Environmental Education Minnesota Legislature Minnesota Pollution Control mitigate or eliminate MN GLDP/MPCA MN MPCA monitoring NADP Natural Resources nitric acids nitrogen oxide emissions parties agree percent Pollution Control Agency power plants problem of acid PROVINCE OF ONTARIO Rain in Minnesota reduce and prevent retail kilowatt-hour sales RUDY PERPICH Scandinavia Section sensitive areas sensitive to acid Smallmouth bass snow sources of sulfur spawning inhibited sulfur and nitrogen sulfur dioxide emissions tourism utilities Voyageurs National Park Walleye Waters Canoe Area