| http://www.w3.org/ns/prov#value | - The largest single-year reduction in SO2 since the start of the Acid Rain Program occurred between 2008 and 2009.?? Reductions in fine particle levels yielded benefits including about 20,000-50,000 lives saved annually.?? Many lakes and streams affected by acid rain in the east are exhibiting signs of recovery.The Acid Rain Program was established under the 1990 Clean
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