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SAN LEANDRO SHORELINE DEVELOPMENT DRAFT EIR <br />CITY OF SAN LEANDRO <br />AIR QUALITY <br />TABLE 4.2-1 AMBIENT AIR QUALITY STANDARDS FOR CRITERIA POLLUTANTS <br />4.2-10 DECEMBER 2014 <br />Averaging <br />California <br />Federal Primary <br />Pollutant <br />Time <br />Standard <br />Standard <br />Major Pollutant Sources <br />Ozone (03) <br />1 hour <br />0.09 ppm <br />* <br />Motor vehicles, paints, coatings, and solvents. <br />8 hours <br />0.070 ppm <br />0.075 ppm <br />Carbon <br />1 hour <br />20 ppm <br />35 ppm <br />Internal combustion engines, primarily gasoline - <br />Monoxide (CO) <br />powered motor vehicles. <br />8 hours <br />9.0 ppm <br />9 ppm <br />Nitrogen <br />Annual Average <br />0.030 ppm <br />0.053 ppm <br />Motor vehicles, petroleum -refining operations, <br />Dioxide (NO2) <br />industrial sources, aircraft, ships, and railroads. <br />1 hour <br />0.18 ppm <br />0.100 ppm <br />Sulfur <br />Annual <br />* <br />*a <br />Fuel combustion, chemical plants, sulfur recovery <br />Dioxide (SO2) <br />Arithmetic <br />plants, and metal processing. <br />Mean <br />1 hour <br />0.25 ppm <br />0.075 ppm <br />24 hours <br />0.04 ppm <br />*a <br />Respirable <br />Annual <br />20 µg/m <br />* <br />Dust and fume -producing construction, industrial, and <br />Particulate <br />Arithmetic <br />agricultural operations, combustion, atmospheric <br />Matter <br />Mean <br />photochemical reactions, and natural activities (e.g., <br />(PM10) <br />24 hours <br />50 µg/m <br />150 kg/m <br />wind -raised dust and ocean sprays). <br />Respirable <br />Annual <br />12 µg/m3 <br />12 µg/m3 <br />Dust and fume -producing construction, industrial, and <br />Particulate <br />Arithmetic <br />agricultural operations, combustion, atmospheric <br />Matter <br />Mean <br />photochemical reactions, and natural activities (e.g., <br />(PM2.5) <br />24 hours <br />* <br />35 µg/m3 <br />wind -raised dust and ocean sprays). <br />Lead (Pb) <br />30 -Day Average <br />1.5 kg/M3 <br />* <br />Present source: lead smelters, battery manufacturing & <br />Calendar <br />* <br />3 <br />1.5 <br />recycling facilities. Past source: combustion of leaded <br />kg/m <br />gasoline. <br />Quarterly <br />Rolling 3 -Month <br />* <br />0.15 µg/m <br />Average <br />Sulfates (SO4) <br />24 hours <br />25 µg/M3 <br />* <br />Industrial processes. <br />Visibility <br />8 hours <br />ExCo =0.23/km <br />No Federal <br />Visibility -reducing particles consist of suspended <br />Reducing <br />visibility of 10>_ <br />Standard <br />particulate matter, which is a complex mixture of tiny <br />Particles <br />miles <br />particles that consists of dry solid fragments, solid cores <br />with liquid coatings, and small droplets of liquid. These <br />particles vary greatly in shape, size, and chemical <br />composition, and can be made up of many different <br />materials such as metals, soot, soil, dust, and salt. <br />Hydrogen <br />1 hour <br />0.03 ppm <br />No Federal <br />Hydrogen sulfide (H2S) is a colorless gas with the odor <br />Sulfide <br />Standard <br />of rotten eggs. It is formed during bacterial <br />decomposition of sulfur -containing organic substances. <br />Also, it can be present in sewer gas and some natural <br />gas, and can be emitted as the result of geothermal <br />enerav exploitation. <br />4.2-10 DECEMBER 2014 <br />