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City of San Leandro Alvarado Commerce Center Project 20 Table 3 Health Effects Associated with Non-Attainment Criteria Pollutants Pollutant Adverse Effects Ozone (1) Short-term exposures: (a) pulmonary function decrements and localized lung edema in humans and animals and (b) risk to public health implied by alterations in pulmonary morphology and host defense in animals; (2) long-term exposures: risk to public health implied by altered connective tissue metabolism and altered pulmonary morphology in animals after long-term exposures and pulmonary function decrements in chronically exposed humans; (3) vegetation damage; and (4) property damage. Suspended particulate matter (PM10) (1) Excess deaths from short-term and long-term exposures; (2) excess seasonal declines in pulmonary function, especially in children; (3) asthma exacerbation and possibly induction; (4) adverse birth outcomes including low birth weight; (5) increased infant mortality; (6) increased respiratory symptoms in children such as cough and bronchitis; and (7) increased hospitalization for both cardiovascular and respiratory disease (including asthma).a Suspended particulate matter (PM2.5) (1) Excess deaths from short- and long-term exposures; (2) excess seasonal declines in pulmonary function, especially in children; (3) asthma exacerbation and possibly induction; (4) adverse birth outcomes, including low birth weight; (5) increased infant mortality; (6) increased respiratory symptoms in children, such as cough and bronchitis; and (7) increased hospitalization for both cardiovascular and respiratory disease, including asthma. a a More detailed discussions on the health effects associated with exposure to suspended particulate matter can be found in the following documents: EPA, Air Quality Criteria for Particulate Matter, October 2004. Source: U.S. EPA, https://www.epa.gov/criteria-air-pollutants/ The 2017 Clean Air Plan is the most recently approved regional air quality management plan, adopted in April 2017 by the BAAQMD. This plan provides an integrated, multi-pollutant strategy to improve air quality, protect public health, and protect the climate. It is designed to provide a control strategy to reduce ozone, particulate matter, air toxics, and greenhouse gases (GHG) in a single, integrated plan. The Clean Air Plan relies on population and employment forecasts from the Association of Bay Area Governments (ABAG) to inform its management strategies. The Clean Air Plan includes Transportation Control Measures that reflect new regional investment, policies, and public input, particularly the Metropolitans Transportation Commission’s regional transportation plan (RTP), Transportation 2035: Change in Motion. In addition, San Leandro has a Climate Action Plan (CAP) that discusses goals for reduction of air quality pollutants and promotion of sustainable growth (San Leandro 2009). Air Emissions Thresholds BAAQMD recommends that lead agencies determine appropriate air quality and GHG thresholds of significance based on substantial evidence in the record. This Initial Study, with the City of San Leandro Planning Department serving as the lead agency, utilizes the BAAQMD’s significance thresholds for project operations from the May 2017 CEQA Guidelines to determine air quality impacts of the project. Table 4 presents the BAAQMD’s May 2017 significance thresholds for construction- and operational- related criteria air pollutants and precursor emissions. These represent levels at which a project’s individual emissions of criteria air pollutants or precursors would result in a cumulatively considerable contribution to the Basin’s existing air quality conditions. For the purposes of this analysis, the project would result in a significant impact if operational emissions would exceed any of the thresholds shown in Table 4. 317