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Protective Action Criteria (PAC) with AEGLs, ERPGs, & TEELs: Rev. 26 for Chemicals of Concern (09/2010) |
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TABLES in PDF and Excel Format The following is a description of each table. There are introductions at the beginning of the tables that provide table-specific information. Table 1 is an alphabetical list of chemical substances, their Chemical Abstract Services Registry Numbers (CASRNs), and some physical constants. This table includes columns with the primary references used for TEEL derivation of each chemical, the lowest value found for the lower explosive limit (LEL) in parts per million (ppm), and the National Fire Protection Agency (NFPA) Health Hazard Rating (HHR). Future reviews will result in continuous updates to this data. There are also columns that provide the date of the original derivation of the PAC values, the date of the last technical review of the data and/or the PAC values. Table 2 is an alphabetical list of the chemical substances and their corresponding PAC values. For the most part, values are given in parts per million (ppm) for gases and volatile liquids and in milligrams per cubic meter (mg/m³) for solids, particulates (aerosols) and nonvolatile liquids. There is a column that indicates which TEEL or PAC values have changed since the last revision. The final column in this table contains technical comments and information provided by the PAC Development Team. Table 3 is a list of the same PAC values as presented in Table 2, but the chemicals are sorted by CASRNs. They are presented in the units of the original request, either ppm or mg/m³. Table 4 is an alphabetical list of the chemical substances and their corresponding PAC values in mass per unit volume (mg/m³). The conversion of ppm to mg/m³ was carried out assuming normal temperature and pressure, 25°C and 760 mm Hg. The final column in this table provides "Source of PACs" information. |
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