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P11-0824(Downtown Hospitality Guidelines),P12-0798(Pleasanton Municipal Code Amendments) Initial Study and Negative Declaration 5.3. AIR QUALITY ENVIRONMENTAL SETTING The Bay Area Air Quality Management District (BAAQMD) monitors air quality and administers permitting authority over most stationary emission sources within nine-county the San Francisco Bay Area. The standards for levels of ozone, carbon monoxide, nitrogen dioxide, sulfur dioxide, particulate matter (PM10), particulate matter - fine (PM2.5), sulfates, lead, hydrogen sulfide, and vinyl chloride have been set by both the California State Environmental Protection Agency and the United States Environmental Protection Agency. As of the writing of this document, the BAAQMD reports that the Bay Area is in non-attainment in levels of ozone, particulate matter (PM10), particulate matter- fine (PM2.5), and are undetermined for hydrogen sulfide and visibility reducing particles with respect to California State standards. For federal standards, areas of non-attainment include ozone and particulate matter - fine (PM2.5) (during the 24-hour period) and are undetermined in areas of nitrogen dioxide (during a 1-hour period), particulate matter (PM10) (during a 24-hour period)2. STANDARDS OF SIGNIFICANCE For purposes of this environmental document, an impact is considered significant if the proposed project would: • Conflict with or obstruct implementation of the applicable air quality plan; • Result in pollution emission levels above those established by Bay Area Air Quality Management District in either short term (construction related) or long term (traffic); • Expose sensitive receptors to substantial pollutant concentrations; • Create objectionable odors affecting a substantial number of people. Less Than Significant Potentially Impact With Less Than Significant Mitigation Significant No Issues Impact Incorporated Impact Impact Alr Quality Where available, the significance criteria established by the applicable air quality management or air pollution control district may be relied upon to make the following determinations. Would the project. a) Conflict with or obstruct implementation of the n ❑ [] applicable air quality plan? b) Violate any air quality standard or contribute n [] substantially to an existing or projected air quality violation? cl Result in a cumulatively considerable net increase of Q November 2, 2012 19