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1985 NAPAP EMISSIONS INVENTORY: DEVELOPMENT OF TEMPORAL ALLOCATION FACTORS
Citation:
Fratt, D., D. Mudgett, AND R. Walters. 1985 NAPAP EMISSIONS INVENTORY: DEVELOPMENT OF TEMPORAL ALLOCATION FACTORS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-89/010d.
Description:
The report documents the development and processing of temporal allocation factors for the 1985 National Acid Precipitation Assessment Program (NAPAP) emissions inventory (Version 2). The NAPAP emissions inventory represents the most comprehensive emissions data base available for the year 1985. Emissions data have been collected for each of the 48 contiguous United States and 10 Canadian provinces. The inventory reflects data from 9175 point sources as well as area sources in 3073 counties in the U. S. and l0 provinces in Canada. A primary use of this inventory is as the input file for certain regional atmospheric transport models; e. g., the Regional Acid Deposition Model (RADM). These models can be used to simulate the deposition of acid rain products. Requirements of RADM dictate that the ennual emissions data be resolved to produce an inventory of hourly, spatially gridded em-issions for all 59 chemical species represented. The report des- ribes the development of the temporal allocation factors used to apportion emissions to each hour throughout the year. It also documents the software used to computerize the factors so that they can be applied to annual emissions using the existing Flexible Regional Emissions Data System (FREDS) software.