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I <br />I1 <br />APPE'.'DIX 13.4. ADDITIO17AL AIR QUALITY DATA <br />TABLE 1. AMBIENT AIP. QUALITY STANDARDS <br />COMPARISON OF FEDERAL AND STATE <br />AIR QUALITY STANDARDS <br />Pollutant <br />Federal Standards <br />State <br />Averaging Time <br />Primary Secondary <br />Standard <br />Objective <br />Ozone <br />To prevent eye <br />1 -hour <br />0.12 ppm Same <br />0.10 ppm <br />Irritation, breath. <br />240 pglm3 — <br />200 pg/m3 <br />ing difficulties. <br />Carbon Monoxide <br />To prevent <br />8 -hour <br />9 ppm Same <br />9.0 ppm <br />carboxyhemo- <br />10 mg/m3 <br />10 mg/m3 <br />globin levels <br />1 -hour <br />35 ppm Same <br />20 ppm <br />greater than 2%. <br />40 mg/m3 <br />23 mg/m3 <br />Nitrogen Dioxide <br />To prevent health <br />Annual <br />0.05 ppm Same <br />— <br />risk and improve <br />100 pglm3 <br />visibility. <br />1 -hour <br />— — <br />0.25 ppm <br />470 pgW <br />Sulfur Dioxide <br />To prevent <br />Annual <br />0.03 ppm — <br />— <br />increase in <br />80 pg/m3 <br />respiratory <br />24-hour <br />0.14 ppm — <br />0.05 ppm <br />disease, plant <br />365 pg/m3 <br />131 pg/m3 <br />damage & odor. <br />3 -hour <br />— 0.5 ppm <br />— <br />1310 pg/m3 <br />1 -hour <br />— — <br />0.25 ppm <br />655 yg/m3 <br />Sulfates <br />To improve visibility <br />24-hour <br />— — <br />25 mg/ml <br />and prevent <br />health effects. <br />Particulate <br />Annual Mean <br />75 pglm3 60 gglm3 <br />30 pglm3 <br />To Improve visibility <br />PM„' <br />and prevent <br />24-hour average <br />260 gglm3 150 pglm3 <br />50 pglm' <br />health effects. <br />PM,; <br />Visibility <br />State Standard: One observation. In sufficient amount <br />Reducing <br />to reduce the prevailing visibility to less than ten miles <br />Particles <br />when the relative humidity <br />is less than <br />70%. <br />Lead <br />30 -day <br />— — <br />1.5 gglm3 <br />To prevent health <br />Calendar quarter <br />1.5 pg1m3 Same <br />— <br />problems. <br />Hydrogen Sulfide <br />1 -hour <br />— — <br />0.03 ppm <br />To prevent odor <br />42 pglm3 <br />problems. <br />Vinyl Chloride <br />(Chloroethane) <br />— — <br />0.010 ppm <br />To prevent health <br />24-hour <br />26 0,g/m3 <br />problems <br />Ethylene <br />&hour <br />— — <br />0.1 ppm <br />To prevent <br />1 -hour <br />— — <br />0.5 ppm <br />plant damage. <br />' PM„ = Particulate matter ten microns or less in size. <br />SOURCE: BAY AREA AIR QUALITY MANAGEMENT DISTRICT, <br />AIR QUALITY HAIMBOOK, 1985-1986. <br />13.4-2 <br />13,4-1 <br />