California Air Resources Board 2007 Almanac (web) Appendix C Outer Continental Shelf Table C_9 TAC Del Norte Humboldt Los Angeles Marin Mendocino Monterey Orange San Diego San Francisco San Luis Obispo San Mateo Santa Barbara Santa Cruz Sonoma Ventura Acetaldehyde 0 5 41 0 3 9 0 20 1 4 1 11 0 3 11 Benzene 1 4 16 1 3 6 1 7 2 4 6 49 1 2 7 "1,3-Butadiene" < 1 < 1 1 < 1 < 1 < 1 < 1 < 1 < 1 < 1 < 1 < 1 < 1 0 1 Carbon Tetrachloride 0 0 0 0 0 0 0 0 0 0 0 < .01 0 0 0 Chromium (Hexavalent) < .01 < .01 < .01 < .01 < .01 < .01 < .01 < .01 < .01 < .01 < .01 < .01 < .01 0.00 0.00 para-DiChlorobenzene 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Formaldehyde < 1 10 83 < 1 7 18 < 1 40 3 8 2 55 < 1 6 24 Methylene Chloride 0 0 0 0 0 0 0 0 0 0 0 < 1 0 0 0 Perchloroethylene 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 Diesel PM 125 351 734 112 303 474 150 570 211 364 697 2003 124 150 418