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Possible increased risk to fetuses. <br />(a) Potential to aggravate chronic respiratory <br />0.18 ppm/1- <br />disease and respiratory symptoms in sensitive <br />Nitrogen <br />hour <br />100 ppb/1-hour <br />groups; (b) Risk to public health implied by <br />Dioxide (NO2) <br />0.03 <br />0.053 ppm/annual <br />pulmonary and extra -pulmonary biochemical and <br />ppm/annual <br />cellular changes and pulmonary structural changes; <br />and c Contribution to atmospheric discoloration. <br />0.25 ppm/1- <br />(a) Bronchoconstriction accompanied by symptoms <br />Sulfur Dioxide <br />hour <br />75 ppb/1-hour <br />which may include wheezing, shortness of breath <br />(S02) <br />0.04 ppm/24- <br />0.14 ppm/annual <br />and chest tightness, during exercise or physical <br />hour <br />activity in persons with asthma. <br />Suspended <br />50 pg/m3/24- <br />Particulate <br />hour <br />20 <br />/m /24-hour <br />150 p9 3 <br />(a) Exacerbation of symptoms in sensitive patients <br />Matter (PMio) <br />pg/m3/annual <br />with respiratory or cardiovascular disease; (b) <br />Declines in pulmonary function growth in children; <br />Suspended <br />12 pglm3 / <br />35 pglm3/24-hour <br />(c) Increased risk of premature death from heart or <br />Particulate <br />annual <br />12 pg/m3/annual <br />lung diseases in elderly. <br />Matter (PM2.e) <br />(a) Decrease In ventilatory function; (b) Aggravation <br />Sulfates <br />25 pg/m3/24- <br />No Federal <br />of asthmatic symptoms; (c ) Aggravation of cardio- <br />hour <br />Standards <br />pulmonary disease; (d) Vegetation damage; (e) <br />Degradation of visibility; f) property damage. <br />Lead <br />1.5 pg/m3/30- <br />0.15 pg/m3/3-month <br />(a) Learning disabilities; (b) Impairment of blood <br />day <br />rolling <br />formation and nerve conduction. <br />Extinction <br />coefficient of <br />0.23 per <br />kilometer - <br />Visibility <br />Reducing <br />visibility of 10 <br />miles or more <br />No Federal <br />Visibility impairment on days when relative humidity <br />Particles <br />due to <br />Standards <br />is less than 70 percent. <br />particles when <br />humidity is <br />less than 70 <br />percent. <br />Source: nnps://www.arb.ca.gov/research/aagslaags2.pdf <br />The SCAB has been designated by CARB as a nonattainment area for ozone, PM10 and PM2.5. <br />Currently, SCAB is in attainment with the ambient air quality standards for CO, lead, S02, NO2, and <br />sulfates and is unclassified for visibility reducing particles and hydrogen sulfide. Table 2 shows the <br />attainment and nonattainment status of the measured emissions in the SCAB. <br />Legacy Sunflower Apartments Page 36 <br />Mitigated Negative Declaration — March 14, 2019 <br />751-122 <br />