California Air Resources Board 2008 Almanac (web)							
Appendix E	"Basin Total, San Francisco Bay Area Air Basin"						Table E-55
Category	ROG	CO	NOX	SOX	PM10	PM2.5	NH3
Natural Sources Total	106	49	2	1	5	4	1
Biogenic Sources	105	0	0	0	0	0	0
Geogenic Sources	0	0	0	0	0	0	1
Wildfires	1	49	2	1	5	4	1