Evaluation of emissions from selected uninventoried sources in the state of California. Final report, July 1986-April 1988

The California Air Resources Board, maintains an extensive statewide emission inventory of criteria pollutants. This document ranks the emissions from 47 emission source categories that are not currently inventories. A primary objective of this study was to evaluate the significance of these uninventoried sources. A second objective was to develop methodologies for refining and spatially disaggregating emission estimates from the significant source categories. Source categories emitting volatile organic compounds were the primary focus of the study. Sources of ammonia (manure wastes) and particulate matter (wind-blown dust) were also considered. The project was conducted in two phases. In the first phase, preliminary emission calculations for the 47 source categories were prepared. The second phase of the project, focused on eight source categories selected from the ranking process. A detailed methodology for calculating statistical confidence intervals for the refined emission estimates was also developed and applied.