2003 Almanac (page 446) Table C-6 County Emissions (tons/year) for Ten Toxic Air Contaminants by Air Basin North Central Coast Air Basin TAC Monterey San Benito Santa Cruz Acetaldehyde 103 16 64 Benzene 204 22 94 "1,3-Butadiene" 61 13 18 Carbon Tetrachloride < .01 0.00 0.00 Chromium (Hexavalent) 0.02 < .01 < .01 para-Dichlorobenzene 21 3 13 Formaldehyde 267 37 133 Methylene Chloride 75 8 53 Perchloroethylene 88 10 75 Diesel PM 302 62 146