California Air Resources Board 2007 Almanac (web) Appendix E "Kern County, San Joaquin Valley Air Basin" Table E-67 Category ROG CO NOX SOX PM10 PM2.5 NH3 Natural Sources Total 19 17 1 0 2 1 4 Biogenic Sources 18 0 0 0 0 0 0 Geogenic Sources 0 0 0 0 0 0 4 Wildfires 1 17 1 0 2 1 0