2009-034 (2) - Final Supplemental Environmental Impact Report for Fairhaven/Lincoln

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5. Environmental Analysis AI R QUALITY Sensitive receptors Some land uses are considered more sensitive to air pollution than others due to the types of population groups or activities involved, S ensitive population groups include children' the elderly, the acutely ill, and the chronically ill, especially those with card ioresp i ratory diseases. Residential areas are also considered to be sensitive receptors to air pollution because residents (including children and the elderly) tend to be at home for extended periods of time, resulting in sustained exposure to any pollutants present. other sensitive receptors include retirement facilities, hospital's, and schools. Recreational land uses are considered moderately sensitive to air pollution. Although exposure periods are generally short, exercise places a high demand on respiratory functions, which can be impaired by air pollution. In addition, noticeable air pollution can detract from the enjoyment of recreation. Industrial, commercial, retail, and office areas are considered the least sensitive to air pollution. Exposure periods are relatively short and intermittent, as the majority of the workers tend to stay indoors most of the time. in addition, the working population is generally the healthiest segment of the public. Figure 4 -1, Aerial Photograph, in Chapter 4, Environ entalSettin , depicts the land uses surrounding the project site. Sensitive receptors in proximity to the project site include the surrounding residences. 5, 1,3 Thresholds f Significance According to Appendix G of the CEQA G u del ines, a project would normal Iy have a significant effect on the nvlronrnent if the project would: ACS -1 Conflict with or obstruct implementation of the applicable air quality plan. AG-2 AG-2 Violate any air quality standard or contribute substantially to an existing or projected air duality violation. ACS -3 Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non-attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors). Ao -4 Expose sensitive receptors to substantial pollutant concentrations. AQ-5 Create objectionable odors affecting a substantial number of people. In addition, oPR is currently in the process of updating the GEOA guidelines to address global warming. Until such time, a significant impact relative to global climate change and GH O is considered to occur if the project would: AQ-6 Cumulatively contribute to global climate change impacts in California or be substantially affected by global climate change impacts. The Initial Study, included as Appendix A, substantiates that impacts associated with the following thresholds would be less than significant: 0 Threshold ACS -1 0 Threshold ACS - Page 5, 1 -10 T Planning Center March 2009 Resolution No. 2009 -034 Page 60 of 130