The report gives results of an estimate of historic emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) for Task Group B, Manmade Sources, of the National Acid Precipitation Assessment Program (NAPAP) for each state of the conterminous U.S. The emissions were estimated by individual source category on the state level from 1900 to 1980 for every fifth year and for 1978. The source categories included power plants, industrial boilers, industrial processes, commercial and residential heaters, natural gas pipelines, highway vehicles, off-highway diesel engines, and all other anthropogenic sources. These emissions were calculated from salient statistics indicative of fuel consumption or industrial output estimations of average statewide fuel properties, and estimates of emission factors specific to each source category over time. The emission estimates were then aggregated to show the emission trends by state, region, and all states combined. Total state emissions for each year were then estimated using an interpolation procedure based on national annual fuel consumption.

"Volume 1 of 2 volumes." "April 1985." Includes bibliographical references. Microfiche.

v. 1. Results -- v. 2. Data.