2003 Almanac (page 447)  Table C-7  County Emissions (tons/year) for Ten Toxic Air Contaminants by Air Basin					
North Coast Air Basin					

TAC	Del Norte	Humboldt	Mendocino	Sonoma*	Trinity
Acetaldehyde	22	91	67	29	20
Benzene	16	90	73	64	31
"1,3-Butadiene"	16	25	17	13	14
Carbon Tetrachloride	0	0	0	0	0
Chromium (Hexavalent)	< .01	0.01	0.01	0.04	< .01
para-Dichlorobenzene	2	7	5	3	< 1
Formaldehyde	36	164	127	71	41
Methylene Chloride	4	18	14	12	2
Perchloroethylene	6	29	21	14	3
Diesel PM	40	222	166	86	12

* This Air Basin includes only a portion of this county.