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City of Pleasanton–10x Genomics Project Environmental Checklist and <br />Initial Study/Mitigated Negative Declaration Environmental Evaluation <br /> <br /> <br />FirstCarbon Solutions 43 <br />Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480024/ISMND/wp/21480024 10x Genomics Project Full Screencheck ISMND.docx <br />manufactured between 2006 and 2011. Tier 4 engines are the newest and some incorporate hybrid <br />electric technology; Tier 4 engines are manufactured after 2007. <br />Table 8 provides the estimated health and hazard impacts from construction emissions at the MIR <br />for each sensitive receptor age group. The estimates shown in Table 9 include the application of <br />MMs AIR-1 and AIR-2. <br />Table 9: Estimated Health Risks and Hazards—Mitigated Construction <br />Sensitive Receptor Age Group <br />Cancer Risk <br />(risk per million) <br />Chronic Non- <br />Cancer Hazard <br />Index1 <br />Annual PM2.5 <br />Concentration <br />(µg/m3) <br />Infant 1.22 <0.01 0.01 <br />Child 0.23 <0.01 0.01 <br />Adult 0.04 <0.01 0.01 <br />Risks and Hazards 1.49 <0.01 0.01 <br />BAAQMD Thresholds of Significance 10 1 0.3 <br />Exceeds Individual Source Threshold? No No No <br />Notes: <br />1 Chronic non-cancer hazard index was estimated by dividing the annual DPM concentration (as PM2.5 exhaust) by the <br />reference exposure level of 5 µg/m3. <br />Source: Appendix A. <br /> <br />As shown above in Table 9, the proposed project’s mitigated construction DPM emissions would not <br />exceed the BAAQMD’s cancer risk, chronic non-cancer hazard index, or annual PM2.5 thresholds of <br />significance at the maximum impacted receptor for any of the sensitive receptor age groups <br />analyzed. Therefore, the proposed project would not result in significant health impacts to nearby <br />sensitive receptors after mitigation. <br />Criterion 2: Cumulative Health Risk Assessment <br />The BAAQMD recommends assessing the potential cumulative impacts from sources of TACs within <br />1,000 feet of a project. For a project-level analysis, BAAQMD provides several tools for use in <br />screening potential sources of TACs. The BAAQMD-provided tools used to assess the potential <br />cumulative impacts from TACs are described below: <br />• Health Risks for Local Roadways. The BAAQMD pre-calculated concentrations and the <br />associated potential cancer risks and PM2.5 concentration increases for each county within <br />their jurisdiction for roadways that carry at least 30,000 average daily trips. For certain areas, <br />the BAAQMD also included local roadways that meet BAAQMD’s “major roadway” criteria of <br />10,000 vehicles or 1,000 trucks per day. The latest available screening tool is in the form of a <br />Geographic Information System (GIS) raster file.