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4:/:I1-3Ill i*a <br />Table 3 <br />Ozone (03) 1 <br />Ambient Air Qualitv Mon <br />Maximum Levels during Such Violations <br />State 1-Hour>_ 0.09 ppm (days exceed threshold) <br />0 <br />2 <br />1 <br />2 <br />0 <br />State 8-hour >_ 0.07 ppm (days exceed threshold) <br />0 <br />6 <br />1 <br />4 <br />4 <br />Federal 8-Hour> 0.075 ppm (days exceed threshold) <br />0 <br />4 <br />1 <br />0 <br />2 <br />Max. i-Hour Conc. (ppm) <br />0.084 <br />0.111 <br />0.100 <br />0.103 <br />0.90 <br />Max. 8-Hour Conc. (ppm) <br />0.070 <br />0.081 <br />0.080 <br />0.074 <br />0.076 <br />Carbon Monoxide (CO)I <br />State 8-Hour> 9.0 ppm (days exceed threshold) <br />« <br />Federal 8-Hour>_ 9.0 ppm (days exceed threshold) <br />« <br />« <br />« <br />Max. 8-HourConc. (ppm) <br />* <br />* <br />* <br />« <br />Nitrogen Dioxide (NO211 <br />State 1-Hour>_ 0.18 ppm (days exceed threshold) <br />0 <br />0 <br />0 <br />0 <br />0 <br />Federal 1-Hour>_ 0.100 ppm (days exceed threshold) <br />0 <br />0 <br />0 <br />0 <br />0 <br />Max. i-Hour Conc. (ppm) <br />0.081 <br />0.075 <br />0.059 <br />0.064 <br />0.081 <br />Sulfur Dioxide (SOa I <br />State 24-Hour>_ 0.04 ppm (days exceed threshold) <br />Federal 244Hour>_ 0.14 ppm (days exceed threshold) <br />Max 24-Hour Conc. (ppm) <br />Coarse Particulates (PNIA 1 <br />State 24-Hour> 50 Ng/m3(days exceed threshold) <br />1 <br />2 <br />2 <br />Federal 24-Hour>150Ng/m3(days exceed threshold) <br />0 <br />0 <br />0 <br />0 <br />0 <br />Max. 24-Hour Conc. (Ng/m3) <br />77 <br />84 <br />59 <br />* <br />* <br />Fine Particulates (PM2.6)1 <br />Federal 24-Hour>35Ng/m3(days exceed threshold) 1 4 3 1 7 <br />Max. 24-Hour Conc. (uu/m3) 47.7 46.5 53.8 45.5 56.2 <br />plan: parts per million; parts per billion, pg/m3: micrograms per cubic meter <br />Notes: *Data not available. <br />1 Data obtained from the Orange— Anaheim -Pampas Lane Station. <br />Sensitive Receptors <br />Some land uses ace considered more sensitive to air pollution than others due to the types of population <br />groups or activities involved. Sensitive population groups include children, the elderly, the acutely ill, and the <br />chronically ill., especially those with cardio-respiratory diseases. <br />Residential areas are also considered to be sensitive receptors to air pollution because residents (including <br />children and the elderly) tend to be at home for extended periods of time, resulting in sustained exposure to <br />any pollutants present. Schools are also considered sensitive receptors, as children are present for extended <br />durations and engage in regular outdoor activities. Recreational land uses are considered moderately sensitive <br />to air pollution. Although exposure periods are generally short, exercise places a high demand on respiratory <br />functions, which can be impaired by air pollution. In addition, noticeable air pollution can detract from the <br />75C-150 <br />