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5.1 AIR QUALITY <br /> TABLE 5.1-8 <br /> PM10 Levels at Stockton-Hazelton,Stockton, 1998-2007(fag/m3) <br /> 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 <br /> Highest 24-hour Average <br /> State 115 155 97 147 91 90 61 84 85 75 <br /> Federal 106 150 91 140 87 88 60 79 82 71 <br /> Annual Arithmetic Mean 30.1 37.7 33.7 36.6 36.1 28.4 29.4 29.8 33.4 27.7 <br /> (State Standard =20 tag/m3) <br /> Expected Number of Days Exceeding: <br /> State Standard 49.8 67.2 52.1 64.1 58.4 17.3 18.0 46.5 62.9 23.5 <br /> (50 tag/m3, 24-hour) <br /> Federal Standard <br /> (150 tag/m3, 24-hour) 0 0 0 0 0 0 0 0 0 0 <br /> Source: California Air Quality Data,Annual Summary, California Air Resources Board <br /> 160 <br /> 0-- <br /> 140 ❑ <br /> 120 _ <br /> 100 ❑ <br /> E ❑ <br /> El <br /> 80 <br /> a <br /> a <br /> 60 d <br /> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <br /> 40 * State Max 24-Hour Concentration <br /> ❑ Federal Max 24-Hour Concetration <br /> State 3-Year Average <br /> 20 Federal 3-Year Average <br /> California Standard <br /> Federal Standard <br /> 0 <br /> 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 <br /> Calendar Year <br /> FIGURE 5.1-8 <br /> Maximum 24-hour Average PM10 Level:Stockton-Hazelton: 1995-2007 <br /> 5.1-16 SAC/371322/082410013(LEC_5.1_AIR_QUALITY.DOC) <br />