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III. ENVIRONMENTAL SETTING,IMPACTS AND MrrIGATION MEASURES <br /> B. AIR QUALITY <br /> TABLE III.B-1 <br /> STATE AND NATIONAL AMBIENT AIR QUALITY STANDARDS <br /> Averaging <br /> g g <br /> Pollutant Time Statea Nationalb <br /> Ozone 1 hour 0.09 ppm° 0.12 ppm <br /> 8 hour NA 0.08 ppm <br /> Carbon Monoxide 1 hour 20 ppm 35 ppm <br /> 8 hour 9.0 ppm 9.0 ppm <br /> Nitrogen Dioxide 1 hour 0.25 ppm NA <br /> Annual NA 0.053 ppm <br /> Sulfur Dioxide 1 hour 0.25 ppm NA <br /> 3 hour NA 0.5 ppm <br /> 24 hour 0.04 ppm 0.14 ppm <br /> Annual NA 0.03 ppm <br /> Suspended Particulate Matter <br /> PM-2.5 24 hour NA 15 ug/m3 <br /> Annual NA 65 ug/m3 <br /> PM-10 24 hour 50 ug/m3 c 150 ug/m3 <br /> Annual 30 ug/m3 50 ug/m3 <br /> Sulfates 24 hour 25 ug/m3 NA <br /> Lead 30 day 1.5 ug/m3 NA <br /> Calendar Quarter NA 1.5 ug/m3 <br /> Hydrogen Sulfide 1 hour 0.03 ppm NA <br /> Vinyl Chloride(chloroethene) 24 hour 0.010 ppm NA <br /> a California standards for ozone,carbon monoxide,sulfur dioxide,nitrogen dioxide,particulate matter(PM-10)are <br /> values that are not to be exceeded. All other California standards shown are values not to be equaled or exceeded. <br /> b National standards,other than ozone and particulate matter and those based on annual averages,are not to be <br /> exceeded more than once a year. The ozone standard is attained when the expected number of days per calendar <br /> year with maximum hourly average concentrations above the standard is equal to or less than one. <br /> c ppm=parts per million by volume;ug/m3=micrograms per cubic meter. <br /> NA=Not Applicable <br /> SOURCE: Air Resources Board, 1998a;SJVUAPCD, 1998a <br /> • 1992 Federal Attainment Plan for Carbon Monoxide. This plan establishes the regulatory <br /> framework needed to bring the SJVAB into compliance with the national standards for CO. <br /> This plan demonstrates that CO attainment has already been achieved. <br /> Storkton Sravenger Transfer Station Expansion 111.B.3 ESA 1990190 <br />