The NHAPEXCLUDE file provides a way to exclude some sources from the NONHAPVOC or NONHAPTOG calculation (see Section 2.9.5, “Combine toxics and criteria inventories”. When the NHAPEXCLUDE file is used, Smkinven will not use the toxics pollutants from the excluded sources to compute NONHAPVOC or NONHAPTOG, but rather will keep the VOC or TOG emissions and naming the same. The toxic emissions will be retained or dropped by Smkinven, depending on the status of the pollutants in the INVTABLE file (see Section 8.10.3, “INVTABLE: Inventory table”). If the pollutant is a model species and an explicit species, then the toxic emissions will not be dropped. If the pollutant is only a model species but not an explicit species, it will be renamed with _NOI appended to the name. If it is neither a model species nor an explicit species, the toxics mass will be dropped to prevent double counting of the inventory mass.

The NHAPEXCLUDE file contains the country/state, county, and SCC codes of thouses sources that SMOKE is to exclude from the NONHAP calculation. The file format is shown in Table 8.92, “Format for NHAPEXCLUDE”.

Zeros can be used within the country/state/county code and the SCC code to make an entry more generic. For example, a SCC-only entry would have a zero for the country/state/county code. For a left-2 SCC entry, the final eight characters of the SCC would be zero. The following list illustrates entries for each of the 14 possible cross-reference levels. See Section 2.3.5, “Source Classification Codes” for more information about the different levels within an SCC.