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TABLE 3.8 <br /> MAXIMUM AMBIENT AIR QUALITY LEVELS MEASURED <br /> AT STOCkTONa <br /> (µ9/m ) <br /> Pollutant/ Year Standard <br /> Averaging Period 1984 1985 1986 California Federal <br /> Nitrogen dioxide (NO2) <br /> 1-hour 169 207 301 470 NE <br /> Annual 44 40 44 NE 100 <br /> Sulfur dioxide (S02) <br /> 1-hour 79 79 79 655 NE <br /> 3-hour NR NR NR NE 1 ,300 <br /> 24-hour 29 29 34 131b 365 <br /> Annual 8 NA 10 NE 80 <br /> Carbon Monoxide (CO) <br /> 1-hour 18,400 14,950 21,000 23,000 40,000 <br /> 8-hour 8,970 9,333 13,444 10,000 10,000 <br /> Fine Particulates (PM10) <br /> 24-hour 78 114 196 50 150 <br /> Annual 41 52 53 30 50 <br /> Sulfates (SO4) <br /> 24-hour 10. 1 11.7 10.5 25 NE <br /> Ozone (0g) <br /> 1-flour 294 274 274 200 235 <br /> aFive monitoring stations are operated in Stockton. The highest values from all sta- <br /> tions are reported. <br /> bConcurrent violation of state 03 or PM10 standard must occur for this standard to <br /> be violated. <br /> NE - No standard established. <br /> NR - Not reported. <br /> NA - Not available. <br /> 3-57 <br /> 101-30.R5 4/13/89 <br />