California Air Resources Board 2006 Almanac (web) Appendix E "Sacramento County, Sacramento Valley Air Basin" Table E-44 Category ROG CO NOX SOX PM10 PM2.5 NH3 Natural Sources Total 10 0 0 0 0 0 0 Biogenic Sources 10 0 0 0 0 0 0 Geogenic Sources 0 0 0 0 0 0 0 Wildfires 0 0 0 0 0 0 0