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5.1 AIR QUALITY <br /> 25 <br /> 20 <br /> M <br /> 15 <br /> E <br /> s <br /> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br /> CN <br /> C <br /> d 10 <br /> 5 ♦ Federal Annual Average <br /> Federal Standard <br /> - State Standard <br /> 0 <br /> 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 <br /> Calendar Year <br /> FIGURE 5.1-11 <br /> Federal Annual Average PM2.5 Level:Stockton-Hazelton: 1999-2007 <br /> 100 <br /> 80 O <br /> ME 60 O� <br /> O N <br /> N � <br /> r O �♦ <br /> 40 O ' <br /> ♦ Max 24-Hour Concentration <br /> 20 O 98th Percentile Concentration <br /> 98th Percentile 3-Year average <br /> Federal Standard <br /> 0 <br /> 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 <br /> Calendar Year <br /> FIGURE 5.1-12 <br /> Maximum 24-Hour PM2.5 Level:Stockton-Hazelton: 1999-2007 <br /> SACI3713221082410013(LEC_5.1_AIR_QUALITY.DOC) 5.1-19 <br />