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PUD-74 Environmental Checklist new trips per day. These new trips would not exceed the BAAQMD significance standards for mobile source emissions. In addition, since the development would be limited to persons aged 55 years and older, it would generate fewer vehicular trips than a typical single-family development (587 trips per day versus 1,100 trips per day). Therefore, motor vehicle emissions for the proposed development would be lower than a typical single-family home development. Overall, the proposed project will result in small, incremental, and insignificant increases in emissions. Therefore, this would be a less-than-significant-impact. e) Land uses such as residences are considered to be sensitive receptors to poor air quality because people in residential areas are often at home and, therefore, exposed to pollutants for extended periods of time. There are no sources of significant air pollution nearby. Wood, gasoline, or diesel is burned at the adjacent fire training facility at the City's OSC, but bums occur infrequently. Therefore, the project would not expose residents to substantial pollutant concentrations and this would be ales-than-significant-impact. f) The proposed project is not anticipated to create objectionable odors affecting a substantial number of people. Therefore, this would be ales-than-significant-impact. Greenhouse Gas Emissions The proposed project may generate greenhouse gases (GHG) that may potentially contribute to the consideration of a cumulative impact towards global climate change. However, the project's contribution to regional GHG emissions would likely be negligible in that the number of units is consistent with the anticipated build out of the City and senior housing generates fewer automobile trips than typical housing that is not age restricted. The City has adopted a Green Building Ordinance to increase energy efficiency, and thereby reduce the City's contribution to GHGs. The Green Building Ordinance requires green building practices be incorporated into new residential, commercial, and civic development. Under this ordinance, commercial projects of 20,000 square feet or larger must meet a minimum Leadership in Energy and Environmental Design (LEED) "certified" rating. Residential projects shall achieve a "green home" rating on either the single-family or the multi-family green building rating system, as applicable. The proposed project will be required to comply with the City's Green Building Ordinance. The proposed project may result in short-term GHG emissions from the combustion of fuel during construction and long-term GHG emissions from traffic increases (mobile sources) and residential building heating (area sources), as well as indirectly, through the electricity generation needed to serve the proposed project. During operation (occupancy) of the proposed project, direct project emissions of COz, the primary GHG, would be emitted, but these emissions would be small, incremental, and insignificant increases in emissions. The project's potential to incrementally increase GHG emissions that maybe associated with minor traffic increases and space heating could contribute to regional and global increases in GHG emissions that may be associated with climate change effects. Although neither the 12