Standard Reference Material 1649: Urban Dust/Organics

This Standard Reference Material (SRM) is intended primarily for use in the evaluation and calibration of analytical methods for the determination of trace level organic constituents on atmospheric particulate matter or on materials with a similar matrix. This material is atmospheric particulate matter collected in an urban location.

Certified values of selected organic constituents, polycyclic aromatic hydrocarbons (PAHs), are shown in Table 1. These certified values are based on results obtained by two different analytical methods utilizing 1-g sample sizes (see Table 2). Noncertified values for selected PAHs, which are provided for information only, are also listed in Table 2. In addition to the values for PAHs, a number of inorganic constituents are listed in Tables 3 and 3a. The inorganic constituent values are included for information only since they were determined using only one analytical technique. Noncertified reference values are also given in Table 4 for the mutagenic activity. The methylene chloride extractable mass was determined to be 5.0% (see section Reference Values for Mutagenic Activity).