The report gives an estimate of historic emissions of volatile organic compounds (VOCs) for each state (and the District of Columbia) of the contiguous U.S. Annual emissions were estimated on the national level from 1960 to 1985. For 1940, 1950, and every fifth year from 1960 to 1985, the national estimates of the U.S. EPA were used. For the other years, national emissions were estimated from national activity data and estimated emission factors for individual source categories. Major source categories include transportation, external combustion, industrial processes, solid waste disposal, and miscellaneous others. State level emissions were estimated by applying allocation factors to the national emission estimates. The emissions from all source categories were aggregated to show the emission trend by state and Federal region and for the U.S. Seasonal emissions were estimated for each year. The uncertainty of the emission estimates was calculated based on the methodology developed previously by NAPAP. The data presented in Appendix B are available in Lotus 123 format on floppy disks.

Caption title. "May 1988." "EPA/600/7-88/008." Microfiche.