California Air Resources Board 2007 Almanac (web)							
Appendix E	"El Dorado County, Lake Tahoe Air Basin"						Table E-8
Category	ROG	CO	NOX	SOX	PM10	PM2.5	NH3
Natural Sources Total	2	1	0	0	0	0	0
Biogenic Sources	2	0	0	0	0	0	0
Geogenic Sources	0	0	0	0	0	0	0
Wildfires	0	1	0	0	0	0	0