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3.0 ENVIRONMENTAL CHECKLIST <br />California Standards <br />National Standards <br />Pollutant <br />Averaging Time <br />Attainment <br />Attainment <br />Concentration <br />Status <br />Concentration <br />Status <br />24 Hours <br />0.04 ppm <br />A <br />0.14 ppm <br />(105I.rg/m3) <br />(365/,ug/m3) <br />Sulfur Dioxide (S02) <br />1 Hour <br />0.25 ppm <br />A <br />0.075 ppm <br />— <br />(665 ,ug/m3) <br />(196/pg/m3) <br />Annual Arithmetic Mean <br />0.030 ppm <br />— <br />(80/,ug/m3) <br />Particulate Matter <br />Annual Arithmetic Mean <br />20,ag/m3 <br />N <br />No standard <br />Not <br />applicable <br />(PMio) <br />24 Hours <br />50,ag/m3 <br />N <br />150pg/m3 <br />U <br />Particulate Matter — <br />Annual Arithmetic Mean <br />12 ,ag/m3 <br />N <br />15 /.ig/m3 <br />A <br />Fine (PM2.5) <br />24 Hours <br />35 pg/m3 <br />N <br />Sulfates <br />24 Hours <br />25 /-ig/m3 <br />A <br />30-Day Average <br />1.5 /ig/m3 <br />— <br />A <br />Lead <br />Calendar Quarter <br />1.5 /rg/m3 <br />A <br />Rolling 3-Month Average <br />— <br />— <br />0.15 jug/m3 <br />— <br />Hydrogen Sulfide <br />1 Hour <br />0.03 ppm <br />(42 //$/m ) <br />U <br />— <br />— <br />Vinyl Chloride <br />24 Hours <br />0.01 ppm <br />No <br />information <br />— <br />— <br />(chloroethene) <br />3 <br />(26pg/m) <br />available <br />Visibility -Reducing <br />8 Hours <br />— <br />U <br />— <br />— <br />Particles <br />(10:00 to 18:00 PST) <br />Source: BAAQMD 2017a <br />Notes: A=attainment; N=nonattainment; U=unclassified; mg/m3=milligrams per cubic meter; ppm=parts per million; ppb=parts per <br />billion; /rg/m3=micrograms per cubic meter <br />Based on the nonattainment status, 03, PM,o, and PM2.5 are the pollutants most intensely affecting <br />the SFBAAB. Concentrations near the project site can be inferred from ambient air quality <br />measurements conducted by the BAAQMD at nearby air quality monitoring stations. The Oakland- <br />9925 International Boulevard air quality monitoring station is the closest station to the project site, <br />approximately 1.7 miles to the northeast. No monitoring stations in the project vicinity collect data <br />for PM,o. Table 3.3-3 summarizes the data published since 2015 from the closest monitoring stations <br />for each year that monitoring data were provided. <br />City of San Leandro <br />November 2018 <br />1388 Bancroft Avenue Project <br />Initial Study/Mitigated Negative Declaration <br />3.0-1 1 <br />