An Investigation of the Relationship Between Total Non- Methane Organic Carbon and the sum of speciated Hydrocarbons and Carbonyls Measured by Standard GC/FID: Validation and Refinement of a New Instrument, and Measurements in the South Coast Air Basin Agreement No. 98-323 State of California Air Resources Board Final Report June 6, 2002 Principal Investigator: Suzanne Paulson Researchers: Christophe Maris Myeong Chung Udo Krischke Atmospheric Sciences Department University of California at Los Angeles Los Angeles, CA 90095-1565