California Air Resources Board 2006 Almanac (web)							
Appendix E	"Siskiyou County, Northeast Plateau Air Basin"						Table E-38
Category	ROG	CO	NOX	SOX	PM10	PM2.5	NH3
Natural Sources Total	166	113	4	1	12	10	2
Biogenic Sources	159	0	0	0	0	0	1
Geogenic Sources	0	0	0	0	0	0	1
Wildfires	8	113	4	1	12	10	1