Appendix E "Imperial County, Salton Sea Air Basin" Table E-52 Category ROG CO NOX SOX PM10 PM2.5 NH3 Natural Sources Total 3 0 0 0 0 0 4 Biogenic Sources 3 0 0 0 0 0 0 Geogenic Sources 0 0 0 0 0 0 4 Wildfires 0 0 0 0 0 0 0