SU-2601146 - Laserfiche WebLink

Home Browse Search

Son Joequln Valley Air Pollution Con/of 01sidd Page 3 of DlsMctlielarence No.20280190 March 12,2020 A development project would be considered to have a potentially significant health risk if the HRA demonstrates that the health impacts would exceed the District's established risk thresholds,which can be found here: httes:ttww2.vallevair.orq/r)ermitting/caga/. A project with a significant health risk would trigger all feasible mitigation measures. The District strongly recommends that development projects that result in a significant health risk not be approved by the land use agency. The District Is available to review HRA protocols and analyses. For HRA submittals please provide the following information electronically to the District for review: • HRA(AERMOD)modeling files • HARP2 files • Summary of emissions source locations,emissions rates, and emission factor calculations and methodologies. For assistance,please contact the District's Technical Services Department by: • E-Mailing inquiries to: hramodeleraZvallevair.org • Calling(559)230-5900 Recommended Measure: Development projects resulting in TAC emissions should be located an adequate distance from residential areas and other sensitive receptors to prevent the creation of a significant health risk in accordance to CARB's Air Quality and Land Use Handbook:A Community Health Perspective located at httos://ww2.arb.ca.ciov/our-work/programs/resource-center/strateov- development/land-use-resources. 3) Vegetative Barriers and Urban Greening There are residential units located northeast of the Project. The District suggests the County consider the feasibility of incorporating vegetative barriers and urban greening as a measure to further reduce air pollution exposure on sensitive receptors(e.g.,residential units). While various emission control techniques and programs exist to reduce air quality emissions from mobile and stationary sources,vegetative barriers have been shown to be an additional measure to potentially reduce a population's exposure to air pollution through the Interception of airborne particles and the update of gaseous pollutants. Examples of vegetative barriers include,but are not limited to the following: trees,bushes,shrubs,or a mix of these. Generally,a higher and thicker vegetative barrier with full coverage will result in greater reductions in downwind pollutant concentrations. In the same manner,urban greening is also a way to help