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section provides an analysis of potential long-term air quality impacts due to regional air quality and <br />local air quality impacts with the on -going operations of the project. <br />Mobile Sources <br />Mobile sources generate air emissions due to project vehicle miles traveled. Information from the traffic <br />study was referenced to provide the input data necessary for the CaIEEMod model. Emission factors <br />for each vehicle trip was provided by the EMFAC2014 model to determine the vehicular traffic pollutant <br />emissions to calculate mobile source emissions. <br />Area Sources <br />Area source emissions include emissions from consumer products, landscape maintenance equipment <br />and architectural coatings. Landscape maintenance equipment emissions include fuel combustion <br />emissions from the operation of equipment such as lawn mowers, rototillers, shredders/grinders, <br />blowers, trimmers, chain saws, and hedge trimmers, as well as air compressors, generators, and <br />pumps. Because specific landscape equipment fleet information was not known, CaIEEMod defaults <br />were used to estimate the emissions from the operation of the landscaping equipment that would <br />typically be used for a project as proposed. <br />Energy Usage <br />Energy usage includes air emissions from the generation of electricity and the use of natural gas by the <br />project. The project is required to comply with 2016 Title 24 standards. <br />Regional Air Quality Impacts <br />The worst -case long-term operational air emissions of the project are summarized in Table 8. As <br />shown, the long-term operational emissions of the project do not exceed SCAQMD thresholds for the <br />studied emissions. Therefore, the operational air quality impacts of the project are less than significant. <br />Table 8 <br />Regional Operational Pollutant Emissions' <br />Activity <br />Pollutant Emissions (pounds/day) <br />ROGs <br />NOx <br />CO <br />SO2 <br />PM10 <br />PM2.5 <br />Area SourceS2 <br />6.98 <br />3.59 <br />20.15 <br />0.02 <br />0.38 <br />0.38 <br />Energy Usage' <br />0.08 <br />0.65 <br />0.28 <br />0.00 <br />0.05 <br />0.05 <br />Mobile Sources" <br />1.82 <br />7.51 <br />24.92 <br />0.10 <br />8.98 <br />2.45 <br />Total Emissions <br />8.88 <br />11.75 <br />45.35 <br />0.12 <br />9.41 <br />2.88 <br />SCAQMD Thresholds <br />55 <br />55 <br />550 <br />150 <br />150 <br />55 <br />Exceeds Threshold? <br />No <br />No <br />No <br />No <br />No <br />No <br />(1) Source: CaIEEMod Version 2016.3.2; the higher of either summer or winter emissions. <br />(2) Area sources consist of emissions from consumer products, architectural coatings, and landscaping equipment. <br />(3) Energy usage consists of emissions from generation of electricity and on -site natural gas usage. <br />(4) Mobile sources consist of emissions from vehicles and road dust. <br />Legacy Sunflower Apartments Page 44 <br />Mitigated Negative Declaration — March 14, 2019 <br />