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Environmental Impacts of the Proposed Changes to the Original Project Addendum to the City of Pleasanton Downtown Specific Plan Final Environmental Impact Report 19 Overall, the proposed project would have a less than significant impact to aesthetics, similar to the Final EIR for the DSP. Effects and Mitigation Measures No new or substantially more severe significant effects would occur to aesthetics, and no new mitigation measures are necessary. Conclusion Impacts would be less than significant, similar to those identified in the Final EIR, and no significant new or substantially increased aesthetics impacts would occur compared to those discussed in the Final EIR. 5.2 Air Quality Impacts Identified in the Certified Final EIR The Final EIR determined that implementation of the DSP would not conflict with or obstruct implementation of the applicable air quality plan, the Bay Area Air Quality Management District’s (BAAQMD) 2017 Clean Air Plan. The analysis therein demonstrated the DSP would support the primary goals of the Clean Air Plan, would include applicable control measures from the Clean Air Plan, and would not hinder implementation of any control measures. Impacts would be less than significant. The Final EIR determined that development facilitated by the DSP would violate air quality standards, contribute substantially to existing or projected air quality violations, and would result in a cumulatively considerable net increase in criteria pollutants for which the region is in nonattainment. The DSP would involve implementation of Mitigation Measure AQ-1, which would require development projects facilitated by the DSP to prepare a technical assessment that evaluates construction-related air quality impacts, and Mitigation Measure AQ-2, which would require development projects facilitated by the DSP to prepare a technical assessment that evaluates operation-related air quality impacts. However, even with implementation of these mitigation measures, development facilitated by the DSP would generate ozone and particulate matter, criteria pollutants for which the region is in nonattainment. Impacts would be significant and unavoidable. Impacts of the Barone’s Project In accordance with Mitigation Measures AQ-1 and AQ-2 of the DSP, a technical assessment of the project’s construction and operational air quality impacts is provided below. Air Quality Standards CONSTRUCTION EMISSIONS Construction associated with the Barone’s project would generate short term emissions of criteria air pollutants. The criteria air pollutants of primary concern within the project area include ozone (O3) precursor pollutants (i.e., reactive organic gases [ROG] and nitric oxide [NOx]) and particulate matter with diameter 10 microns or less and 2.5 microns or less (PM10 and PM2.5). Construction generated emissions are of temporary duration, lasting only as long as construction activities occur,