California Air Resources Board 2007 Almanac (web)							
Appendix E	"Tehama County, Sacramento Valley Air Basin"						Table E-48
Category	ROG	CO	NOX	SOX	PM10	PM2.5	NH3
Natural Sources Total	71	170	5	2	17	15	2
Biogenic Sources	66	0	0	0	0	0	0
Geogenic Sources	0	0	0	0	0	0	0
Wildfires	4	170	5	2	17	15	2